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RANKING · 2020 CENSUS · 500 SHOWN OF 3,135

Most densely populated, US counties · 2020

US counties ranked by residents per square mile (2020).

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RANKPLACESTATEPOPPOPULATION DENSITYVS 2000
1501Henry County, IAIA19,34947+1%
1502Madison County, NCNC22,55347+8%
1503Laclede County, MOMO36,94347+11%
1504Butler County, KSKS69,48447+13%
1505Lee County, ILIL32,91447−5%
1506Adams County, OHOH27,86547+1%
1507Bedford County, PAPA47,48047−5%
1508Giles County, VAVA16,56447+1%
1509Wayne County, GAGA32,48147+13%
1510Clinton County, KYKY9,13947−4%
1511Twin Falls County, IDID97,53947+40%
1512Boone County, IAIA26,79947+2%
1513Lincoln County, WVWV19,17747−7%
1514Mesa County, COCO162,84547+34%
1515Hart County, KYKY20,11747+11%
1516Sioux County, IAIA36,77447+14%
1517Susquehanna County, PAPA38,23747−9%
1518Austin County, TXTX33,62547+28%
1519Adair County, KYKY19,42347+10%
1520Richmond County, VAVA9,29447+1%
1521Caledonia County, VTVT30,41447+2%
1522Sullivan County, ININ20,83147−4%
1523Dickinson County, IAIA18,07747+8%
1524Hardin County, TNTN27,98346+5%
1525Geneva County, ALAL27,55446+3%
1526Alleghany County, NCNC11,47946+2%
1527San Benito County, CACA70,08246+21%
1528Mille Lacs County, MNMN27,75346+18%
1529McDonough County, ILIL25,91646−17%
1530Manistee County, MIMI25,65646+2%
1531McNairy County, TNTN26,23646+5%
1532Scott County, MSMS28,07346−2%
1533Iosco County, MIMI25,26646−8%
1534Hood River County, OROR23,72046+17%
1535Bath County, KYKY13,17646+15%
1536Davison County, SDSD20,06946+6%
1537Shawano County, WIWI41,56046+1%
1538Gallatin County, MTMT128,74046+75%
1539Rabun County, GAGA17,76446+12%
1540Missoula County, MTMT123,51345+23%
1541Franklin County, KSKS26,29945+5%
1542Clay County, MSMS18,23845−15%
1543Barbour County, WVWV15,41445−1%
1544Grant County, WIWI52,44645+5%
1545Logan County, ILIL27,18245−10%
1546Maverick County, TXTX58,82345+22%
1547Candler County, GAGA11,27545+15%
1548Paulding County, OHOH18,72745−7%
1549Allegany County, NYNY46,80045−7%
1550Roscommon County, MIMI23,91445−8%
1551Cherokee County, ALAL26,41345+4%
1552Mississippi County, ARAR37,82845−22%
1553Marion County, MSMS24,00145−5%
1554Jim Wells County, TXTX38,80445−1%
1555Carroll County, ARAR29,26345+11%
1556Waseca County, MNMN18,68845−3%
1557Penobscot County, MEME157,96745+5%
1558Itawamba County, MSMS24,15245+5%
1559Yankton County, SDSD23,63545+8%
1560Monroe County, MSMS33,31845−10%
1561Jeff Davis County, GAGA15,21945+17%
1562Adair County, MOMO25,68445+1%
1563Cleburne County, ARAR25,67245+3%
1564Lewis County, TNTN13,48745+11%
1565Tishomingo County, MSMS18,63944−2%
1566Calaveras County, CACA46,60544+12%
1567Barry County, MOMO36,20044+2%
1568Garrett County, MDMD28,37044−3%
1569Clallam County, WAWA78,20244+20%
1570Teller County, COCO24,75644+20%
1571Covington County, MSMS17,89844−5%
1572Switzerland County, ININ10,03744+7%
1573Simpson County, MSMS25,49844−6%
1574Lewis County, WVWV16,39444+1%
1575Bond County, ILIL16,95944−5%
1576Union County, ININ6,86344−4%
1577Jasper County, SCSC38,53344+39%
1578Richland County, ILIL15,21944−2%
1579Freeborn County, MNMN30,44044−5%
1580Warren County, PAPA37,03844−12%
1581Warren County, NCNC18,89843−7%
1582Boone County, WVWV20,25143−15%
1583Brookings County, SDSD37,63543+22%
1584Clay County, KYKY19,46543−17%
1585Washington County, FLFL26,69543+21%
1586Fleming County, KYKY15,78743+9%
1587Moultrie County, ILIL14,37143+2%
1588McDonald County, MOMO23,99243+7%
1589Madison County, VAVA14,23743+11%
1590East Feliciana Parish, LALA18,91143−9%
1591Camden County, NCNC11,31543+50%
1592Imperial County, CACA181,41143+26%
1593Howell County, MOMO40,79843+7%
1594Wyoming County, WVWV19,80143−17%
1595Dickenson County, VAVA13,23643−14%
1596Wayne County, KYKY19,59743−2%
1597Herkimer County, NYNY59,21943−7%
1598Orange County, VTVT30,00243+4%
1599Mitchell County, GAGA20,46742−9%
1600Brown County, MNMN25,51742−4%
1601Lake County, TNTN6,24942−12%
1602Sanilac County, MIMI40,08342−9%
1603Crawford County, ILIL18,64842−9%
1604Clinton County, PAPA37,87042−1%
1605Carlton County, MNMN36,71142+14%
1606Trempealeau County, WIWI31,17142+14%
1607Andrew County, MOMO18,24142+10%
1608Miller County, MOMO25,81742+5%
1609Union County, ILIL16,65642−6%
1610Saluda County, SCSC19,68042−2%
1611Fountain County, ININ17,01342−8%
1612Halifax County, VAVA33,44742−9%
1613Anson County, NCNC21,75841−13%
1614Bracken County, KYKY8,51141+1%
1615Houston County, TNTN8,47941+2%
1616Arenac County, MIMI15,06841−13%
1617McKean County, PAPA38,98441−12%
1618Marshall County, OKOK16,25541+16%
1619Codington County, SDSD29,56241+9%
1620Essex County, VAVA10,65441+6%
1621Stone County, MSMS19,65441+35%
1622Meriwether County, GAGA21,51641−9%
1623Lawrence County, ILIL13,79041−1%
1624Scott County, TNTN22,67141+3%
1625Rush County, ININ16,76741−8%
1626Holmes County, FLFL20,11941+6%
1627Wabasha County, MNMN21,53741−1%
1628Ray County, MOMO23,39841−1%
1629Hickman County, TNTN26,21941+12%
1630Coos County, OROR63,99241+3%
1631Brantley County, GAGA18,93641+23%
1632Floyd County, VAVA15,78941+12%
1633Lyon County, KYKY9,12341+7%
1634Jerome County, IDID26,36241+32%
1635Knott County, KYKY13,32141−19%
1636St. Lawrence County, NYNY105,48840−3%
1637Ohio County, KYKY23,93440+4%
1638Buchanan County, VAVA18,49240−25%
1639Washington County, KYKY12,36840+10%
1640Osceola County, MIMI23,51640−1%
1641Long County, GAGA21,55740+57%
1642Polk County, TNTN18,59240+9%
1643Brown County, TXTX38,71140+1%
1644Wetzel County, WVWV13,73440−18%
1645Ware County, GAGA36,90640+2%
1646Lee County, SCSC15,73040−18%
1647Morgan County, TNTN22,16040+6%
1648Scott County, VAVA21,20040−8%
1649Benton County, TNTN16,18340−4%
1650Montgomery County, ILIL28,07640−8%
1651Dodge County, GAGA19,66340+4%
1652Atascosa County, TXTX53,59040+27%
1653Sandoval County, NMNM159,56540+66%
1654Berrien County, GAGA18,93240+12%
1655Edmonson County, KYKY12,74940+4%
1656Fannin County, TXTX39,26540+14%
1657Perry County, MOMO19,09340+5%
1658Union County, KYKY12,83940−13%
1659Grays Harbor County, WAWA78,14440+13%
1660Hardee County, FLFL25,93240−6%
1661Washington County, IAIA22,66740+9%
1662Calhoun County, TXTX19,59940−3%
1663Jasper County, GAGA17,63240+28%
1664McCreary County, KYKY17,12440−1%
1665Pulaski County, GAGA10,17240+3%
1666Marion County, ALAL29,09740−6%
1667Orleans County, VTVT27,60039+4%
1668Pennington County, SDSD116,79239+23%
1669Dallas County, ALAL35,14039−17%
1670Erath County, TXTX43,91139+29%
1671Bacon County, GAGA11,07039+10%
1672Webster County, KYKY12,92939−8%
1673Lawrence County, KYKY15,76539+5%
1674Waushara County, WIWI25,22339+6%
1675Menard County, ILIL11,86339−2%
1676Oconto County, WIWI40,19539+9%
1677De Witt County, ILIL15,11839−8%
1678Johnson County, ARAR26,22539+13%
1679Escambia County, ALAL36,66539−4%
1680Mahaska County, IAIA21,88039−1%
1681Green County, KYKY11,64439−4%
1682Fulton County, ILIL32,90139−12%
1683Vernon County, WIWI31,44339+9%
1684Johnson County, ILIL13,36339+3%
1685Gilpin County, COCO6,07339+22%
1686Howard County, TXTX30,50439+4%
1687Coahoma County, MSMS19,84939−30%
1688Nicholas County, KYKY7,94939+11%
1689Greensville County, VAVA11,18139−1%
1690Santa Cruz County, AZAZ50,02039+24%
1691Heard County, GAGA12,14939+4%
1692Seminole County, GAGA9,16239−2%
1693Meeker County, MNMN23,60338+3%
1694Chattahoochee County, GAGA8,46538−36%
1695Winston County, ALAL23,82938−5%
1696Levy County, FLFL48,52038+25%
1697Medina County, TXTX56,88138+29%
1698Wharton County, TXTX42,06038+1%
1699Bureau County, ILIL32,51038−6%
1700Humboldt County, CACA131,64738+8%
1701Hardeman County, TNTN25,27438−9%
1702Nicholas County, WVWV23,84838−7%
1703Lyon County, KSKS32,26638−10%
1704Rockbridge County, VAVA22,66338+9%
1705Piatt County, ILIL16,79138+2%
1706West Feliciana Parish, LALA15,13438+1%
1707Atchison County, KSKS16,17238−3%
1708Randolph County, ALAL23,16338−2%
1709Magoffin County, KYKY11,11038−13%
1710Jackson County, TNTN12,46638+6%
1711Union County, ARAR36,92638−14%
1712Huron County, MIMI30,53038−13%
1713Barnwell County, SCSC20,65338−12%
1714Grundy County, TNTN14,11638−6%
1715Conway County, ARAR21,39338+2%
1716Jackson County, KYKY13,32538−4%
1717Elk County, PAPA29,92637−12%
1718Laramie County, WYWY102,93837+23%
1719Hill County, TXTX39,50337+11%
1720Crawford County, GAGA12,20637−3%
1721Amelia County, VAVA13,63237+16%
1722Moniteau County, MOMO15,42837+4%
1723Pointe Coupee Parish, LALA19,52037−9%
1724Seminole County, OKOK23,44137−5%
1725Sunflower County, MSMS22,89337−24%
1726Grimes County, TXTX34,25237+24%
1727Fentress County, TNTN20,32237+11%
1728Calhoun County, SCSC14,18837−7%
1729Charles City County, VAVA6,62337−2%
1730Houghton County, MIMI37,84237+4%
1731Ste. Genevieve County, MOMO18,68937+4%
1732Grant County, WAWA105,72737+33%
1733Yuma County, AZAZ224,44937+27%
1734Ogemaw County, MIMI21,12137−4%
1735Newton County, MSMS20,96037−3%
1736Vernon Parish, LALA45,09137−7%
1737Latah County, IDID41,84237+13%
1738Bledsoe County, TNTN15,92037+21%
1739Caldwell County, KYKY12,60937−3%
1740Jo Daviess County, ILIL21,59437−1%
1741Pike County, ININ12,00337−5%
1742Lincoln County, GAGA8,11237−8%
1743Colleton County, SCSC39,38237+1%
1744Leake County, MSMS21,66236+2%
1745Copiah County, MSMS27,49736−1%
1746Marquette County, MIMI68,06436+2%
1747Union County, SDSD17,40236+34%
1748Pamlico County, NCNC12,75836−5%
1749Patrick County, VAVA17,42436−9%
1750Carroll County, IAIA20,30336−3%
1751Covington County, ALAL37,947360%
1752Franklin County, TXTX10,99436+10%
1753Worth County, GAGA20,05936−5%
1754St. Francis County, ARAR21,80036−21%
1755Parke County, ININ16,64236−6%
1756Clay County, SDSD15,03136+11%
1757Appling County, GAGA19,10036+6%
1758McLean County, KYKY9,06436−8%
1759Buena Vista County, IAIA20,44936+2%
1760Tioga County, PAPA40,50236−1%
1761Richland Parish, LALA19,58236−4%
1762Hampshire County, WVWV24,10536+14%
1763Audrain County, MOMO24,52836−3%
1764Morgan County, KYKY14,41536−2%
1765Buchanan County, IAIA20,88336−3%
1766Harrison County, OHOH14,07036−9%
1767Jefferson County, IAIA15,29136−3%
1768Casey County, KYKY16,20536+3%
1769Jones County, IAIA21,25336+2%
1770Breckinridge County, KYKY21,50336+10%
1771McDowell County, WVWV16,87836−30%
1772Bibb County, ALAL22,26236+7%
1773Humphreys County, TNTN19,64636+6%
1774Cheboygan County, MIMI25,79336−3%
1775Benton County, IAIA26,00436+1%
1776Montgomery County, GAGA8,63536+4%
1777Metcalfe County, KYKY10,58336+2%
1778Noble County, OHOH14,276350%
1779Lee County, KYKY7,29735−7%
1780Lyon County, MNMN25,68435−1%
1781Bolivar County, MSMS28,26235−24%
1782Bee County, TXTX32,51535−4%
1783Carroll County, ILIL15,41935−6%
1784Kleberg County, TXTX30,31535−2%
1785Putnam County, ILIL5,61935−7%
1786Morgan County, MOMO22,41835+9%
1787Jasper County, TXTX33,07535−7%
1788Lincoln County, OKOK35,27835+4%
1789Asotin County, WAWA22,54535+8%
1790Hancock County, MEME57,17135+7%
1791Stoddard County, MOMO28,28435−3%
1792Juneau County, WIWI26,64935+10%
1793Ward County, NDND68,23335+19%
1794Cass County, ILIL12,46335−5%
1795Grayson County, VAVA15,23035−14%
1796Jefferson County, KSKS18,296340%
1797Curry County, NMNM46,65534+8%
1798Crawford County, ININ10,50934−2%
1799Grant Parish, LALA22,07534+19%
1800Newton County, ININ14,18834−5%
1801Monroe County, KYKY11,19134−4%
1802Walthall County, MSMS13,92834−8%
1803Seward County, KSKS21,07334−2%
1804Livingston County, ILIL35,05734−10%
1805Hendry County, FLFL48,27634+9%
1806Decatur County, TNTN11,82034−3%
1807Marquette County, WIWI15,92734−2%
1808Lewis County, WAWA88,06234+20%
1809Gem County, IDID21,77334+26%
1810Willacy County, TXTX19,971340%
1811Houston County, MNMN18,40034−4%
1812Dickinson County, MIMI25,82734−6%
1813Chickasaw County, MSMS16,73034−12%
1814Alleghany County, VAVA14,54634+18%
1815Oneida County, WIWI38,13134+3%
1816Adair County, OKOK19,82834−7%
1817Douglas County, WIWI43,99034+2%
1818Bamberg County, SCSC12,79634−20%
1819Bladen County, NCNC30,00734−8%
1820Oglethorpe County, GAGA16,41534+17%
1821McPherson County, KSKS30,06434+2%
1822Pittsburg County, OKOK43,320340%
1823Haywood County, TNTN17,04234−10%
1824Emanuel County, GAGA23,14733+4%
1825Murray County, OKOK13,80533+10%
1826Fulton County, PAPA14,48333+2%
1827Williamsburg County, SCSC29,66233−17%
1828Matagorda County, TXTX36,46333−4%
1829Summers County, WVWV11,53233−8%
1830Hampton County, SCSC18,17433−13%
1831Morgan County, OHOH13,62633−7%
1832Mills County, IAIA14,793330%
1833Eagle County, COCO54,29133+34%
1834Brooks County, GAGA16,10133−1%
1835Cherokee County, KSKS19,10533−14%
1836La Plata County, COCO56,89833+27%
1837Todd County, KYKY12,97233+2%
1838Northampton County, NCNC16,49133−21%
1839Cumberland County, VAVA10,35233+7%
1840Tyler County, WVWV7,88132−13%
1841Hale County, TXTX31,81932−11%
1842Lincoln County, WIWI28,40332−4%
1843Greenbrier County, WVWV31,57832−4%
1844Morehouse Parish, LALA23,70532−17%
1845Lawrence County, SDSD29,45932+18%
1846Owen County, KYKY11,60132+7%
1847Ellis County, KSKS29,07532+5%
1848Treutlen County, GAGA6,46632−7%
1849Macon County, ALAL18,13232−19%
1850Clay County, TNTN7,82132−5%
1851Kalkaska County, MIMI18,69332+8%
1852St. Louis County, MNMN200,518320%
1853Adams County, WIWI21,75232+11%
1854Garvin County, OKOK26,37732−6%
1855Cedar County, IAIA18,35932+2%
1856Fremont County, COCO50,03932+6%
1857Poweshiek County, IAIA18,36832−1%
1858Trigg County, KYKY14,51232+12%
1859Pemiscot County, MOMO14,46532−22%
1860Washington County, NCNC10,63832−20%
1861Franklin Parish, LALA19,00232−7%
1862Fulton County, KYKY6,21832−16%
1863Beauregard Parish, LALA36,67332+11%
1864Dallas County, MOMO18,02532+9%
1865Turner County, GAGA8,98332−5%
1866Pepin County, WIWI7,51332+1%
1867Delta County, MIMI36,58232−4%
1868Henry County, MOMO22,671310%
1869Nelson County, VAVA14,92031+2%
1870Elliott County, KYKY7,26531+9%
1871Cascade County, MTMT85,02931+5%
1872Ballard County, KYKY7,59431−7%
1873Labette County, KSKS19,68531−12%
1874Ford County, KSKS33,99331+6%
1875Floyd County, IAIA14,90131−8%
1876Nobles County, MNMN22,33831+7%
1877Iowa County, WIWI23,95131+4%
1878Crawford County, MOMO22,92931+1%
1879Vinton County, OHOH12,645310%
1880Warren County, ILIL16,22231−10%
1881Washington County, MOMO23,81031+1%
1882Ouachita County, ARAR21,73131−21%
1883Saline County, MOMO23,26531−2%
1884Jackson County, OKOK24,76431−13%
1885Clark County, ILIL15,11431−9%
1886Seward County, NENE18,03231+7%
1887Gates County, NCNC10,234310%
1888Kanabec County, MNMN16,62831+7%
1889Delaware County, NYNY44,30531−8%
1890Cowley County, KSKS34,38231−5%
1891Pickett County, TNTN5,21931+1%
1892McIntosh County, OKOK19,75831−3%
1893Jackson County, IAIA19,28831−4%
1894De Soto Parish, LALA27,38131+5%
1895Mississippi County, MOMO12,00331−6%
1896Fairfield County, SCSC20,34031−11%
1897Henry County, ALAL18,39431+5%
1898Otter Tail County, MNMN61,04130+5%
1899Cass County, TXTX28,65130−7%
1900Marshall County, ILIL11,47330−11%
1901Lampasas County, TXTX23,65730+22%
1902Johnson County, GAGA9,31030+7%
1903Poinsett County, ARAR22,48330−10%
1904Cooper County, MOMO17,13630+3%
1905Le Flore County, OKOK50,196300%
1906Delaware County, IAIA17,67430−5%
1907Morrison County, MNMN34,62030+7%
1908Cumberland County, ILIL10,20830−7%
1909Shelby County, TXTX24,28630−5%
1910Macon County, GAGA11,75630−14%
1911Pottawatomie County, KSKS27,18630+39%
1912Plaquemines Parish, LALA22,25630−12%
1913Menifee County, KYKY6,43030−7%
1914Southampton County, VAVA18,11030+3%
1915Fayette County, ILIL20,79030−1%
1916Hancock County, TNTN7,07530−2%
1917Natchitoches Parish, LALA36,08930−4%
1918Marinette County, WIWI42,57430−3%
1919Cedar County, MOMO14,88830+3%
1920Allen Parish, LALA22,67230−11%
1921Jefferson County, GAGA15,01130−9%
1922Palo Pinto County, TXTX30,79130+5%
1923Logan County, ARAR21,63330−6%
1924Plymouth County, IAIA25,69730+3%
1925Columbia County, ARAR21,89430−11%
1926Saunders County, NENE23,70230+12%
1927Burke County, GAGA24,40830+11%
1928Stewart County, TNTN14,43930+10%
1929Hardin County, IAIA16,45530−10%
1930Lyon County, NVNV65,08830+72%
1931Wasatch County, UTUT38,51430+129%
1932Finney County, KSKS37,50530−5%
1933Wolfe County, KYKY6,29830−7%
1934Richland County, WIWI17,03630−3%
1935Madison County, IAIA17,27029+18%
1936Washington County, GAGA19,45329−6%
1937Monroe County, OHOH12,99429−12%
1938Martin County, ININ9,85629−5%
1939Franklin County, NYNY46,50029−7%
1940Winston County, MSMS17,47329−12%
1941Winneshiek County, IAIA19,73329−6%
1942Yavapai County, AZAZ252,55229+41%
1943Butler County, KYKY12,52029−5%
1944Buckingham County, VAVA17,13729+8%
1945Roane County, WVWV13,31729−9%
1946Yazoo County, MSMS22,94729−5%
1947Clay County, IAIA16,20229−6%
1948Madison County, TXTX14,22629+4%
1949Pulaski County, ININ12,46329−9%
1950Custer County, OKOK28,17529+9%
1951Union County, IAIA11,82929−1%
1952Clark County, WIWI35,05229+3%
1953Sharp County, ARAR18,12229+1%
1954Minidoka County, IDID22,91129+7%
1955Dooly County, GAGA11,15629−3%
1956Telfair County, GAGA11,19529+6%
1957Gasconade County, MOMO14,78429−4%
1958Barbour County, ALAL24,60729−13%
1959Randolph County, ARAR18,87628+2%
1960Barton County, KSKS24,79028−10%
1961Page County, IAIA14,85628−10%
1962Grant County, ARAR18,75628+9%
1963Iowa County, IAIA16,50428+6%
1964Livingston County, KYKY8,86328−9%
1965Clay County, ILIL12,79328−9%
1966Jefferson County, IDID35,29728+61%
1967Crawford County, WIWI15,91028−7%
1968Marion County, ARAR17,59328+4%
1969Martin County, MNMN19,44028−8%
1970Sevier County, ARAR15,75828+1%
1971Edwards County, ILIL5,89828−10%
1972Franklin County, ARAR17,72528−4%
1973White County, ILIL13,25028−10%
1974Brunswick County, VAVA15,72728−14%
1975Mercer County, ILIL15,22928−7%
1976Lawrence County, MSMS11,81928−9%
1977Ford County, ILIL13,21628−5%
1978Breathitt County, KYKY12,55828−15%
1979Neosho County, KSKS15,63728−6%
1980Oxford County, MEME60,34628+6%
1981Lee County, TXTX18,72928+12%
1982Panola County, TXTX23,01828−1%
1983Jefferson Davis County, MSMS10,94128−19%
1984Shelby County, ILIL20,57628−8%
1985Lunenburg County, VAVA12,05828−9%
1986Lawrence County, ARAR16,27328−9%
1987Hempstead County, ARAR19,08028−15%
1988Rappahannock County, VAVA7,43928+5%
1989Del Norte County, CACA26,41028+1%
1990Benton County, MOMO20,53628+13%
1991Graham County, NCNC8,190280%
1992Pawnee County, OKOK16,02927−6%
1993Terrell County, GAGA8,65627−16%
1994Livingston County, MOMO14,708270%
1995Delta County, COCO32,17827+12%
1996Cross County, ARAR16,18627−14%
1997Irwin County, GAGA9,02027−3%
1998Schley County, GAGA4,59327+21%
1999Hamilton County, FLFL14,18027+5%
2000Bonner County, IDID54,42027+28%
SHOWING 1,501–2,000 OF 3,135

UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS