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class="comp article-header-block mntl-block "><ul id="breadcrumbs_1-0" class="comp breadcrumbs mntl-universal-breadcrumbs mntl-block type--squirrel breadcrumbs" data-tracking-container="true"><li id="mntl-breadcrumbs__item_1-0" class="comp mntl-breadcrumbs__item mntl-block"><a href="https://www.thoughtco.com/humanities-4133358" rel="nocaes" id="mntl-text-link_5-0" class="mntl-text-link mntl-breadcrumbs__link" data-tracking-container="true" ><span class="link__wrapper">Humanities</span></a> <span id="breadcrumbs__separator_1-0" class="comp breadcrumbs__separator mntl-text-block">›</span></li> <li id="mntl-breadcrumbs__item_2-0" class="comp mntl-breadcrumbs__item mntl-block"><a href="https://www.thoughtco.com/geography-4133035" rel="nocaes" id="mntl-text-link_6-0" class="mntl-text-link mntl-breadcrumbs__link" data-tracking-container="true" ><span class="link__wrapper">Geography</span></a> <span id="breadcrumbs__separator_2-0" class="comp breadcrumbs__separator mntl-text-block">›</span></li> <li id="mntl-breadcrumbs__item_3-0" class="comp mntl-breadcrumbs__item mntl-block"><a href="https://www.thoughtco.com/population-4133031" rel="nocaes" id="mntl-text-link_7-0" class="mntl-text-link mntl-breadcrumbs__link" data-tracking-container="true" ><span class="link__wrapper">Population</span></a> <span id="breadcrumbs__separator_3-0" class="comp breadcrumbs__separator mntl-text-block">›</span></li></ul> <div id="article-heading_1-0" class="comp article-heading mntl-article-header"> <h1 class="article-heading type--lion">Largest Cities Throughout History</h1> <p class="article-subheading type--dog">Determining population prior to census-taking was no easy task</p> </div></div> </div><div class="loc article-post-header"><div id="post-header-social-block_1-0" class="comp post-header-social-block mntl-block"><div id="social-share-block_1-0" class="comp social-share-block mntl-block"><ul id="social-share_1-0" class="comp social-share mntl-social-share 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mntl-bylines right-rail__offset"><div id="mntl-bylines__group_1-0" class="comp mntl-bylines__group mntl-block mntl-bylines__group--author"><div id="mntl-bylines__item_1-0" class="comp mntl-bylines__item mntl-attribution__item mntl-attribution__item--has-date"> <span class="mntl-attribution__item-descriptor">By</span> <div data-tooltip="Matt Rosenberg is an award-winning geographer and the author of "The Handy Geography Answer Book" and "The Geography Bee Complete Preparation Handbook."" tabindex="0" data-inline-tooltip="true"> <a href="https://www.thoughtco.com/matt-rosenberg-1433401" rel="nocaes" data-trigger-link="true" class="mntl-attribution__item-name" tabindex="-1" >Matt Rosenberg</a> <div id="mntl-author-tooltip_1-0" class="comp mntl-author-tooltip mntl-tooltip mntl-group "> <div class="mntl-author-tooltip__top mntl-author-tooltip__top--no-image"> <div id="mntl-author-tooltip__name_1-0" class="comp mntl-author-tooltip__name mntl-attribution__item "> <a href="https://www.thoughtco.com/matt-rosenberg-1433401" rel="nocaes" class="mntl-attribution__item-name" tabindex="0" >Matt Rosenberg</a> </div> <span id="mntl-author-tooltip__job-title_1-0" class="comp mntl-author-tooltip__job-title mntl-text-block">Geography Expert</span> <ul id="mntl-author-tooltip__education_1-0" class="comp mntl-author-tooltip__education mntl-block"><li id="mntl-author-tooltip__education-item_1-0" class="comp mntl-author-tooltip__education-item mntl-text-block">M.A., Geography, California State University - Northridge</li> <li id="mntl-author-tooltip__education-item_2-0" class="comp mntl-author-tooltip__education-item mntl-text-block">B.A., Geography, University of California - Davis</li></ul> <div class="mntl-author-tooltip__bio"> Matt Rosenberg is an award-winning geographer and the author of "The Handy Geography Answer Book" and "The Geography Bee Complete Preparation Handbook." </div> </div> <div class="mntl-author-tooltip__bottom"> <span class="mntl-author-tooltip__learn-more-text">Learn about our</span> <a href="/about-us-4779650#toc-editorial-guidelines" rel="nocaes" class="mntl-author-tooltip__learn-more-link" >Editorial Process</a> </div> </div></div> </div> <div class="mntl-attribution__item-date">Updated on November 04, 2019</div></div> </div></div> </div><div class="loc article-content"><div id="article-content_1-0" class="comp article-content mntl-block"><div id="mntl-sc-page_1-0" class="comp mntl-sc-page mntl-block structured-content expert-content" data-sc-sticky-offset="85" data-sc-ad-label-height="24" data-sc-ad-track-spacing="100" data-sc-min-track-height="250" data-sc-max-track-height="600" data-sc-breakpoint="50em" data-sc-load-immediate="3" data-sc-content-positions="[1, 1050, 1250, 1550, 1950, 2350, 2750, 3150]" data-bind-scroll-on-start="true"><p id="mntl-sc-block_1-0" class="comp mntl-sc-block mntl-sc-block-html"> In order to understand how civilizations have evolved over time, it's useful to look at population growth and decline in different geographic areas. </p> <div id="mntl-sc-block_2-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_3-0" class="comp mntl-sc-block mntl-sc-block-html"> Tertius Chandler's compilation of the population of cities throughout history, <em>Four Thousand Years of Urban Growth: An Historical Census</em> uses a wide variety of historical sources to locate approximate populations for the world's largest cities since 3100 BCE. </p> <div id="mntl-sc-block_4-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_5-0" class="comp mntl-sc-block mntl-sc-block-html"> It's a daunting task to try to calculate how many people lived in urban centers prior to recorded history. Even though the Romans were the first to conduct a census, requiring every Roman man to register every five years, other societies were not as diligent about tracking their populations. Widespread plagues, natural disasters with a large loss of life and wars that decimated societies (from both the aggressor and the conquered points of view) often provide unfortunate clues to historians for a given population's size. </p> <div id="mntl-sc-block_6-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_7-0" class="comp mntl-sc-block mntl-sc-block-html"> But with few written records, and very little uniformity among societies that may be hundreds of miles apart, trying to determine whether China's pre-modern era cities were more populous than India's, for instance, is no easy task. </p> <div id="mntl-sc-block_8-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <span class="heading-toc" id="toc-counting-pre-census-population-growth"></span><h2 id="mntl-sc-block_9-0" class="comp mntl-sc-block reference-sc-block-heading mntl-sc-block-heading"> <span class="mntl-sc-block-heading__text"> Counting Pre-Census Population Growth </span> </h2> <p id="mntl-sc-block_10-0" class="comp mntl-sc-block mntl-sc-block-html"> The challenge for Chandler and other historians is the lack of formal census-taking before the 18th century. His approach was to look at smaller pieces of data to try to create a clear picture of populations. This included examining travelers' estimates, data on the numbers of households within cities, the numbers of food wagons arriving in cities and the size of each city or state's military. He looked at church records and the loss of lives in disasters. </p> <div id="mntl-sc-block_11-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_12-0" class="comp mntl-sc-block mntl-sc-block-html"> Many of the figures Chandler presented can only be considered rough approximations of the urban population, but most include the city and surrounding suburban or urbanized area. </p> <div id="mntl-sc-block_13-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_14-0" class="comp mntl-sc-block mntl-sc-block-html"> What follows is a list of the largest city at each point in history since 3100 BCE. It lacks population data for many cities but does provide a list of the largest cities throughout time. By looking at the first and second lines of the table, we see that Memphis remained the largest city in the world from at least 3100 BCE to 2240 BCE when Akkad claimed the title. </p> <div id="mntl-sc-block_15-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <figure id="mntl-sc-block_16-0" class="comp mntl-sc-block reference-sc-block-table mntl-sc-block-universal-table"> <div class="mntl-sc-block-universal-table__table-wrapper"> <table class="mntl-sc-block-universal-table__table"> <colgroup style="" span="1"></colgroup> <colgroup style="" span="1"></colgroup> <colgroup style="" span="1"></colgroup> <tbody data-check="-1"> <tr> <td><strong>City</strong></td> <td><strong>Year Became No. 1</strong></td> <td><strong>Population</strong></td> </tr> <tr> <td>Memphis, Egypt</td> <td>3100 BCE</td> <td>Well over 30,000</td> </tr> <tr> <td>Akkad, Babylonia (Iraq)</td> <td>2240</td> <td></td> </tr> <tr> <td>Lagash, Babylonia (Iraq)</td> <td>2075</td> <td></td> </tr> <tr> <td>Ur, Babylonia (Iraq)</td> <td>2030 BCE</td> <td>65,000</td> </tr> <tr> <td>Thebes, Egypt</td> <td>1980</td> <td></td> </tr> <tr> <td><a href="https://www.thoughtco.com/babylon-iraq-ancient-capital-170193" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">Babylon, Babylonia</a> (Iraq)</td> <td>1770</td> <td></td> </tr> <tr> <td>Avaris, Egypt</td> <td>1670</td> <td></td> </tr> <tr> <td>Nineveh, Assyria (Iraq)</td> <td>668</td> <td></td> </tr> <tr> <td><a href="https://www.thoughtco.com/the-lighthouse-of-alexandria-1434534" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">Alexandria, Egypt</a></td> <td>320</td> <td></td> </tr> <tr> <td>Pataliputra, India</td> <td>300</td> <td></td> </tr> <tr> <td>Xi'an, China</td> <td>195 BCE</td> <td>400,000</td> </tr> <tr> <td>Rome</td> <td>25 BCE</td> <td>450,000</td> </tr> <tr> <td><a href="https://www.thoughtco.com/istanbul-was-once-constantinople-1435547" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">Constantinople</a></td> <td>340 CE</td> <td>400,000</td> </tr> <tr> <td>Istanbul</td> <td>CE</td> <td></td> </tr> <tr> <td>Baghdad</td> <td>775 CE</td> <td>first over 1 million</td> </tr> <tr> <td>Hangzhou, China</td> <td>1180</td> <td>255,000</td> </tr> <tr> <td>Beijing, China</td> <td>1425- 1500</td> <td>1.27 million</td> </tr> <tr> <td>London, United Kingdom</td> <td>1825-1900</td> <td>first over 5 million</td> </tr> <tr> <td>New York</td> <td>1925-1950</td> <td>first over 10 million</td> </tr> <tr> <td>Tokyo</td> <td>1965-1975</td> <td>first over 20 million</td> </tr> </tbody> </table> </figure> <div id="mntl-sc-block_17-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_18-0" class="comp mntl-sc-block mntl-sc-block-html"> Here are the top cities by population from the year 1900: </p> <div id="mntl-sc-block_19-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <figure id="mntl-sc-block_20-0" class="comp mntl-sc-block reference-sc-block-table mntl-sc-block-universal-table"> <div class="mntl-sc-block-universal-table__table-wrapper"> <table class="mntl-sc-block-universal-table__table"> <colgroup style="" span="1"></colgroup> <colgroup style="" span="1"></colgroup> <thead> <tr> <th>Name</th> <th>Population</th> </tr> </thead> <tbody data-check="0"> <tr> <td>London</td> <td>6.48 million</td> </tr> <tr> <td>New York</td> <td>4.24 million</td> </tr> <tr> <td><a href="https://www.thoughtco.com/geography-of-france-1434598" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">Paris</a></td> <td>3.33 million</td> </tr> <tr> <td>Berlin</td> <td>2.7 million</td> </tr> <tr> <td>Chicago</td> <td>1.71 million</td> </tr> <tr> <td>Vienna</td> <td>1.7 million</td> </tr> <tr> <td>Tokyo</td> <td>1.5 million</td> </tr> <tr> <td>St. Petersburg, Russia</td> <td>1.439 million</td> </tr> <tr> <td>Manchester, UK</td> <td><p>1.435 million</p></td> </tr> <tr> <td>Philadelphia</td> <td>1.42 million</td> </tr> </tbody> </table> </figure> <div id="mntl-sc-block_21-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_22-0" class="comp mntl-sc-block mntl-sc-block-html"> And here are the top 10 cities by population for the year 1950 </p> <div id="mntl-sc-block_23-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <figure id="mntl-sc-block_24-0" class="comp mntl-sc-block reference-sc-block-table mntl-sc-block-universal-table"> <div class="mntl-sc-block-universal-table__table-wrapper"> <table class="mntl-sc-block-universal-table__table"> <colgroup style="" span="1"></colgroup> <colgroup style="" span="1"></colgroup> <thead> <tr> <th>Name</th> <th>Population</th> </tr> </thead> <tbody data-check="0"> <tr> <td><a href="https://www.thoughtco.com/new-york-metropolitan-area-1435558" data-component="link" data-source="inlineLink" data-type="internalLink" data-ordinal="1">New York</a></td> <td><p>12.5 million</p></td> </tr> <tr> <td>London</td> <td>8.9 million</td> </tr> <tr> <td>Tokyo</td> <td>7 million</td> </tr> <tr> <td>Paris</td> <td>5.9 million</td> </tr> <tr> <td>Shanghai</td> <td>5.4 million</td> </tr> <tr> <td>Moscow</td> <td>5.1 million</td> </tr> <tr> <td>Buenos Aires</td> <td>5 million</td> </tr> <tr> <td>Chicago</td> <td>4.9 million</td> </tr> <tr> <td>Ruhr, Germany</td> <td>4.9 million</td> </tr> <tr> <td>Kolkata, India</td> <td>4.8 million</td> </tr> </tbody> </table> </figure> <div id="mntl-sc-block_25-0" class="comp mntl-sc-block mntl-sc-block-adslot mntl-block"></div> <p id="mntl-sc-block_26-0" class="comp mntl-sc-block mntl-sc-block-html"> In the modern era, it's much easier to track things like birth, death and marriage certificates, especially in countries that conduct census surveys on a regular basis. But it's fascinating to consider how large cities grew and shrunk before there were means to measure them. </p></div> <div id="sources-and-citation_1-0" class="comp sources-and-citation mntl-block"><div id="citation-widget_1-0" class="comp citation-widget js-citation-widget" data-tracking-container="true"> <div class="citation-widget__container js-container"> <button class="citation-widget__button js-button"> <span class="citation-widget__cite-label">Cite this Article </span> <svg class="icon icon-cite citation-widget__icon-cite" > <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-cite" href="#icon-cite"></use> </svg> </button> <div class="citation-widget__window js-window"> <svg class="icon icon-close citation-widget__icon-close js-icon-close" > <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-close" href="#icon-close"></use> </svg> <div class="citation-widget__heading">Format</div> <a href="#" class="citation-widget__format-link citation-widget__format-link--active js-format-link">mla</a> <a href="#" class="citation-widget__format-link js-format-link">apa</a> <a href="#" class="citation-widget__format-link js-format-link">chicago</a> <div class="citation-widget__heading">Your Citation</div> <div class="citation-widget__content js-content"> <span class="citation-widget__citation citation-widget__citation--active js-active" data-citation-format="mla">Rosenberg, Matt. "Largest Cities Throughout History." ThoughtCo, Apr. 5, 2023, thoughtco.com/largest-cities-throughout-history-4068071.</span> <span class="citation-widget__citation" data-citation-format="apa">Rosenberg, Matt. (2023, April 5). Largest Cities Throughout History. Retrieved from https://www.thoughtco.com/largest-cities-throughout-history-4068071</span> <span class="citation-widget__citation" data-citation-format="chicago">Rosenberg, Matt. "Largest Cities Throughout History." ThoughtCo. https://www.thoughtco.com/largest-cities-throughout-history-4068071 (accessed December 18, 2024).</span> </div> <div class="citation-widget__copy-container"> <button class="citation-widget__copy-button js-copy-button"> <div class="citation-widget__copy-wrapper"> <svg class="icon icon-checkmark citation-widget__icon-checkmark" > <use xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="#icon-checkmark" href="#icon-checkmark"></use> </svg> <span class="citation-widget__copy-label js-copy-label">copy citation</span> </div> </button> </div> </div> </div> </div></div></div> </div><div class="loc article-right-rail"><div id="mm-ads-right-rail_1-0" class="comp mm-ads-right-rail mntl-block"><div id="sc-billboard-group_1-0" class="comp sc-billboard-group mntl-block js-scads-inline-content"><div id="mntl-block_2-0" class="comp mntl-block"><div id="ref-billboard1-sticky-dynamic_1-0" class="comp ref-billboard1-sticky-dynamic mntl-block"><div id="mm-ads-sc-sticky-square-ad_1-0" 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mm-ads-gpt-adunit gpt square dynamic"> <div id="square-fixed" class="wrapper" data-type="square" data-pos="atf" data-priority="2" data-sizes="[[300, 250],"fluid"]" data-rtb="true" data-wait-for-third-party="false" data-targeting="{}"></div> </div></div></div></div> <div id="mntl-block_10-0" class="comp mntl-block"></div> <div id="mntl-block_11-0" class="comp mntl-block"></div> <div id="mntl-block_12-0" class="comp mntl-block"></div></div></div> </div></article> <div id="prefooter--outbrain_1-0" class="comp prefooter--outbrain prefooter mntl-block"><div id="reference-outbrain_1-0" class="comp reference-outbrain mntl-outbrain"> <div class="OUTBRAIN js-outbrain-widget" data-src="https://www.thoughtco.com/largest-cities-throughout-history-4068071" data-widget-id="AR_1"></div> </div> <section id="masonry-list-section_1-0" class="comp masonry-list-section mntl-block" data-tracking-container="true"><ul id="mntl-masonry-tax-card-list_1-0" class="comp mntl-masonry-tax-card-list 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style="padding-bottom:66.1%;"> <img data-src="https://www.thoughtco.com/thmb/jaZkd_2cPD5xJwKl2T8xXX5w7a8=/250x1409/filters:no_upscale():max_bytes(150000):strip_icc()/363713-002-58b9cc153df78c353c37bf6e.jpg" width="250" height="1409" alt="USA,Vermont,Montpelier,golden dome and facade of State Capitol,autumn" class="lazyload card__img universal-image__image" data-dim-ratio="1.512" /> <noscript> <img src="https://www.thoughtco.com/thmb/jaZkd_2cPD5xJwKl2T8xXX5w7a8=/250x1409/filters:no_upscale():max_bytes(150000):strip_icc()/363713-002-58b9cc153df78c353c37bf6e.jpg" width="250" height="1409" class="img--noscript card__img universal-image__image" alt="USA,Vermont,Montpelier,golden dome and facade of State Capitol,autumn" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">The Smallest Capital Cities in the United States</span></div> </div> </a></li> <li 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width="250" height="1000" class="img--noscript card__img universal-image__image" alt="Boy pointing at globe" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">30 Largest Cities in the World</span></div> </div> </a></li> <li id="masonry-list__item_4-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_4-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="1435143" data-tax-levels href="https://www.thoughtco.com/largest-capital-cities-of-united-states-1435143" data-ordinal="4" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media mntl-universal-image universal-image__container"><div class="img-placeholder" style="padding-bottom:66.5%;"> <img 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id="masonry-list__item_9-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_9-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="4158615" data-tax-levels href="https://www.thoughtco.com/biggest-u-s-cities-4158615" data-ordinal="1" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media mntl-universal-image universal-image__container"><div class="img-placeholder" style="padding-bottom:66.6%;"> <img data-src="https://www.thoughtco.com/thmb/rnkqFpNTNRjoesM8qwWZhnhmX58=/250x1000/filters:no_upscale():max_bytes(150000):strip_icc()/biggest-u-s-cities-415815-final2-3cec52c3722d4e07be1a21df8da98e89.png" width="250" height="1000" alt="Illustrated bar chart of the biggest U.S. cities by population" class="lazyload card__img universal-image__image" data-dim-ratio="1.5" /> <noscript> <img src="https://www.thoughtco.com/thmb/rnkqFpNTNRjoesM8qwWZhnhmX58=/250x1000/filters:no_upscale():max_bytes(150000):strip_icc()/biggest-u-s-cities-415815-final2-3cec52c3722d4e07be1a21df8da98e89.png" width="250" height="1000" class="img--noscript card__img universal-image__image" alt="Illustrated bar chart of the biggest U.S. cities by population" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">The 20 Biggest U.S. Cities Based on Population</span></div> </div> </a></li> <li id="masonry-list__item_10-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_10-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="4163436" data-tax-levels href="https://www.thoughtco.com/continents-ranked-by-size-and-population-4163436" data-ordinal="2" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media 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">The 7 Continents Ranked From Largest to Smallest</span></div> </div> </a></li> <li id="masonry-list__item_11-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_11-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="1435134" data-tax-levels href="https://www.thoughtco.com/largest-counties-by-population-1435134" data-ordinal="3" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media mntl-universal-image universal-image__container"><div class="img-placeholder" style="padding-bottom:66.8%;"> <img data-src="https://www.thoughtco.com/thmb/nBJ66zjjJ2F_w_7Q5Qqdt61ZnJU=/250x1416/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-1091578318-ff1489505d124c0ba1739866a5f5910d.jpg" width="250" height="1416" alt="Los Angeles" class="lazyload card__img universal-image__image" data-dim-ratio="1.495" /> <noscript> <img src="https://www.thoughtco.com/thmb/nBJ66zjjJ2F_w_7Q5Qqdt61ZnJU=/250x1416/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-1091578318-ff1489505d124c0ba1739866a5f5910d.jpg" width="250" height="1416" class="img--noscript card__img universal-image__image" alt="Los Angeles" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">Largest Counties by Population</span></div> </div> </a></li> <li id="masonry-list__item_12-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_12-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="1434625" data-tax-levels href="https://www.thoughtco.com/what-is-a-zip-code-1434625" data-ordinal="4" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media mntl-universal-image universal-image__container"><div class="img-placeholder" style="padding-bottom:66.5%;"> <img data-src="https://www.thoughtco.com/thmb/MG-w1dwTpBI4zal60z-am4bD-CY=/250x3540/filters:no_upscale():max_bytes(150000):strip_icc()/mail-carrier-56a4379d5f9b58b7d0d5e66e.jpg" width="250" height="3540" alt="USPS mail carrier delivering mail on a snowy day" class="lazyload card__img universal-image__image" data-dim-ratio="1.503" /> <noscript> <img src="https://www.thoughtco.com/thmb/MG-w1dwTpBI4zal60z-am4bD-CY=/250x3540/filters:no_upscale():max_bytes(150000):strip_icc()/mail-carrier-56a4379d5f9b58b7d0d5e66e.jpg" width="250" height="3540" class="img--noscript card__img universal-image__image" alt="USPS mail carrier delivering mail on a snowy day" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">Understanding ZIP Codes</span></div> </div> </a></li> <li id="masonry-list__item_13-0" class="comp masonry-list__item mntl-block"><a 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universal-image__image" alt="Schwazen Todes map" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">The Global Impacts of the Black Death</span></div> </div> </a></li> <li id="masonry-list__item_14-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_14-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="1435269" data-tax-levels href="https://www.thoughtco.com/current-usa-population-1435269" data-ordinal="6" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media mntl-universal-image universal-image__container"><div class="img-placeholder" style="padding-bottom:49.2%;"> <img data-src="https://www.thoughtco.com/thmb/183yAEaKwNsnO_C8ASDaLsOoC60=/250x1215/filters:no_upscale():max_bytes(150000):strip_icc()/people-walking-at-airport-1030581040-5c4490854cedfd00013fd3b2.jpg" width="250" height="1215" alt="People Walking At Airport" class="lazyload card__img universal-image__image" data-dim-ratio="2.031" /> <noscript> <img src="https://www.thoughtco.com/thmb/183yAEaKwNsnO_C8ASDaLsOoC60=/250x1215/filters:no_upscale():max_bytes(150000):strip_icc()/people-walking-at-airport-1030581040-5c4490854cedfd00013fd3b2.jpg" width="250" height="1215" class="img--noscript card__img universal-image__image" alt="People Walking At Airport" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">Current Population of the United States</span></div> </div> </a></li> <li id="masonry-list__item_15-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_15-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="1435122" data-tax-levels href="https://www.thoughtco.com/most-populous-countries-in-2100-1435122" data-ordinal="7" 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2100</span></div> </div> </a></li> <li id="masonry-list__item_16-0" class="comp masonry-list__item mntl-block"><a id="mntl-card_16-0" class="comp mntl-card mntl-document-card is-inverted-small card card--no-image" data-doc-id="1433603" data-tax-levels href="https://www.thoughtco.com/most-populous-countries-today-1433603" data-ordinal="8" data-cta="Read Now ▸"> <div class="loc card__top"><div class="card__media mntl-universal-image universal-image__container"><div class="img-placeholder" style="padding-bottom:50.0%;"> <img data-src="https://www.thoughtco.com/thmb/jONe5hldaOkHIxRmIoaMqyPOBrI=/250x1224/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-713787089-5c0eeac94cedfd00019049ac.jpg" width="250" height="1224" alt="Map of North America, illustration" class="lazyload card__img universal-image__image" data-dim-ratio="2" /> <noscript> <img src="https://www.thoughtco.com/thmb/jONe5hldaOkHIxRmIoaMqyPOBrI=/250x1224/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-713787089-5c0eeac94cedfd00019049ac.jpg" width="250" height="1224" class="img--noscript card__img universal-image__image" alt="Map of North America, illustration" /> </noscript> </div></div> </div> <div class="card__content " > <div class="card__header" data-kicker="Population"></div> <div class="card__title"><span class="card__title-text ">Top 25 Most Populous Countries in the World</span></div> </div> </a></li></ul> <div id="leaderboard2-deferred-footer_1-0" class="comp leaderboard2-deferred-footer mm-ads-leaderboardfooter-flex-2-lazy mm-ads-flexible-leaderboard-lazy mm-ads-flexible-leaderboard mm-ads-flexible-ad mm-ads-gpt-adunit js-lazy-ad has-right-label leaderboard gpt leaderboard dynamic"> <div id="leaderboardfooter-flex-2" class="wrapper" data-type="leaderboard" data-pos="atf" data-priority="1" data-sizes="[[728, 90], [970, 250], "fluid"]" 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