County
|
State
|
2024 Population
|
2020 Population
|
Growth Since 2020
|
---|---|---|---|---|
Los Angeles County | California | 9,606,925 | 9,992,813 | -3.86% |
Cook County | Illinois | 5,062,578 | 5,263,608 | -3.82% |
Harris County | Texas | 4,888,913 | 4,734,792 | 3.26% |
Maricopa County | Arizona | 4,615,909 | 4,445,059 | 3.84% |
San Diego County | California | 3,262,770 | 3,295,298 | -0.99% |
Orange County | California | 3,121,138 | 3,185,734 | -2.03% |
Miami-Dade County | Florida | 2,700,678 | 2,695,685 | 0.19% |
Dallas County | Texas | 2,610,723 | 2,610,112 | 0.02% |
Kings County | New York | 2,532,919 | 2,718,447 | -6.82% |
Riverside County | California | 2,510,643 | 2,422,993 | 3.62% |
Clark County | Nevada | 2,350,611 | 2,274,887 | 3.33% |
King County | Washington | 2,277,449 | 2,274,282 | 0.14% |
Queens County | New York | 2,225,834 | 2,388,864 | -6.82% |
Tarrant County | Texas | 2,210,248 | 2,115,840 | 4.46% |
San Bernardino County | California | 2,196,314 | 2,183,391 | 0.59% |
Bexar County | Texas | 2,115,167 | 2,015,501 | 4.94% |
Broward County | Florida | 1,978,173 | 1,943,398 | 1.79% |
Santa Clara County | California | 1,876,849 | 1,931,168 | -2.81% |
Wayne County | Michigan | 1,743,396 | 1,789,586 | -2.58% |
Middlesex County | Massachusetts | 1,631,110 | 1,628,235 | 0.18% |
Alameda County | California | 1,616,117 | 1,680,466 | -3.83% |
New York County | New York | 1,600,359 | 1,677,232 | -4.58% |
Sacramento County | California | 1,584,196 | 1,586,566 | -0.15% |
Hillsborough County | Florida | 1,557,655 | 1,466,255 | 6.23% |
Palm Beach County | Florida | 1,547,735 | 1,494,282 | 3.58% |
Philadelphia County | Pennsylvania | 1,534,248 | 1,600,684 | -4.15% |
Suffolk County | New York | 1,518,366 | 1,522,064 | -0.24% |
Orange County | Florida | 1,491,071 | 1,431,679 | 4.15% |
Nassau County | New York | 1,378,136 | 1,390,491 | -0.89% |
Travis County | Texas | 1,342,372 | 1,296,613 | 3.53% |
Bronx County | New York | 1,331,144 | 1,461,151 | -8.9% |
Franklin County | Ohio | 1,330,396 | 1,324,441 | 0.45% |
Oakland County | Michigan | 1,269,827 | 1,272,493 | -0.21% |
Hennepin County | Minnesota | 1,260,360 | 1,281,649 | -1.66% |
Collin County | Texas | 1,231,723 | 1,075,736 | 14.5% |
Cuyahoga County | Ohio | 1,229,182 | 1,262,573 | -2.64% |
Allegheny County | Pennsylvania | 1,217,045 | 1,249,565 | -2.6% |
Wake County | North Carolina | 1,209,772 | 1,130,483 | 7.01% |
Salt Lake County | Utah | 1,185,057 | 1,186,983 | -0.16% |
Mecklenburg County | North Carolina | 1,183,327 | 1,117,423 | 5.9% |
Contra Costa County | California | 1,153,031 | 1,166,069 | -1.12% |
Fairfax County | Virginia | 1,144,447 | 1,148,627 | -0.36% |
Fulton County | Georgia | 1,084,512 | 1,069,394 | 1.41% |
Pima County | Arizona | 1,068,848 | 1,045,175 | 2.26% |
Montgomery County | Maryland | 1,063,881 | 1,060,904 | 0.28% |
Duval County | Florida | 1,044,633 | 997,784 | 4.7% |
Denton County | Texas | 1,037,646 | 914,398 | 13.48% |
Fresno County | California | 1,018,965 | 1,009,552 | 0.93% |
Gwinnett County | Georgia | 990,879 | 958,359 | 3.39% |
Westchester County | New York | 989,898 | 1,001,453 | -1.15% |
Honolulu County | Hawaii | 983,988 | 1,012,399 | -2.81% |
St. Louis County | Missouri | 983,327 | 1,003,130 | -1.97% |
Marion County | Indiana | 967,697 | 976,659 | -0.92% |
Bergen County | New Jersey | 961,932 | 953,690 | 0.86% |
Pinellas County | Florida | 961,400 | 959,793 | 0.17% |
Prince George's County | Maryland | 947,880 | 965,365 | -1.81% |
Fort Bend County | Texas | 944,637 | 829,109 | 13.93% |
Erie County | New York | 943,871 | 952,342 | -0.89% |
Pierce County | Washington | 930,913 | 923,589 | 0.79% |
DuPage County | Illinois | 920,762 | 931,317 | -1.13% |
Milwaukee County | Wisconsin | 914,332 | 938,550 | -2.58% |
Kern County | California | 910,889 | 905,910 | 0.55% |
Hidalgo County | Texas | 908,656 | 872,856 | 4.1% |
Shelby County | Tennessee | 903,727 | 929,763 | -2.8% |
Macomb County | Michigan | 875,967 | 880,238 | -0.49% |
El Paso County | Texas | 872,521 | 866,606 | 0.68% |
Montgomery County | Pennsylvania | 872,440 | 856,998 | 1.8% |
Worcester County | Massachusetts | 870,859 | 859,669 | 1.3% |
Middlesex County | New Jersey | 866,152 | 861,408 | 0.55% |
Essex County | New Jersey | 852,510 | 859,974 | -0.87% |
Snohomish County | Washington | 849,070 | 829,933 | 2.31% |
Polk County | Florida | 848,278 | 730,158 | 16.18% |
Lee County | Florida | 846,755 | 765,547 | 10.61% |
Baltimore County | Maryland | 843,420 | 853,387 | -1.17% |
Hamilton County | Ohio | 829,395 | 830,377 | -0.12% |
Ventura County | California | 826,309 | 843,371 | -2.02% |
Oklahoma County | Oklahoma | 814,629 | 798,241 | 2.05% |
Essex County | Massachusetts | 813,679 | 807,791 | 0.73% |
San Francisco County | California | 810,202 | 870,518 | -6.93% |
San Joaquin County | California | 807,637 | 780,617 | 3.46% |
Multnomah County | Oregon | 784,833 | 816,514 | -3.88% |
Cobb County | Georgia | 781,646 | 766,378 | 1.99% |
Jefferson County | Kentucky | 771,193 | 782,845 | -1.49% |
Suffolk County | Massachusetts | 768,038 | 797,181 | -3.66% |
DeKalb County | Georgia | 764,205 | 764,489 | -0.04% |
El Paso County | Colorado | 747,834 | 732,384 | 2.11% |
Monroe County | New York | 746,077 | 757,551 | -1.51% |
Montgomery County | Texas | 743,154 | 625,291 | 18.85% |
Utah County | Utah | 735,656 | 663,595 | 10.86% |
Norfolk County | Massachusetts | 729,477 | 724,554 | 0.68% |
San Mateo County | California | 723,777 | 762,479 | -5.08% |
Williamson County | Texas | 722,109 | 615,552 | 17.31% |
Jackson County | Missouri | 720,902 | 717,615 | 0.46% |
Denver County | Colorado | 719,701 | 717,606 | 0.29% |
Davidson County | Tennessee | 717,317 | 716,059 | 0.18% |
Hudson County | New Jersey | 708,563 | 721,879 | -1.84% |
Lake County | Illinois | 707,621 | 713,281 | -0.79% |
Will County | Illinois | 703,410 | 696,826 | 0.94% |
Tulsa County | Oklahoma | 688,675 | 670,702 | 2.68% |
District of Columbia | District of Columbia | 686,995 | 670,839 | 2.41% |
Bernalillo County | New Mexico | 670,215 | 676,853 | -0.98% |
Providence County | Rhode Island | 663,806 | 659,963 | 0.58% |
Kent County | Michigan | 663,788 | 658,492 | 0.8% |
Ocean County | New Jersey | 662,731 | 638,465 | 3.8% |
Jefferson County | Alabama | 660,706 | 674,717 | -2.08% |
Brevard County | Florida | 657,251 | 608,775 | 7.96% |
Pasco County | Florida | 656,851 | 566,156 | 16.02% |
Arapahoe County | Colorado | 655,853 | 655,272 | 0.09% |
Bucks County | Pennsylvania | 646,411 | 646,173 | 0.04% |
Monmouth County | New Jersey | 641,370 | 642,836 | -0.23% |
Johnson County | Kansas | 625,383 | 611,149 | 2.33% |
Volusia County | Florida | 601,049 | 555,776 | 8.15% |
Washington County | Oregon | 597,644 | 601,130 | -0.58% |
Anne Arundel County | Maryland | 595,817 | 589,106 | 1.14% |
Douglas County | Nebraska | 592,974 | 585,431 | 1.29% |
Bristol County | Massachusetts | 583,938 | 576,772 | 1.24% |
Dane County | Wisconsin | 582,936 | 562,615 | 3.61% |
New Castle County | Delaware | 581,930 | 570,918 | 1.93% |
Delaware County | Pennsylvania | 577,567 | 576,356 | 0.21% |
Jefferson County | Colorado | 576,921 | 583,081 | -1.06% |
Union County | New Jersey | 575,035 | 573,660 | 0.24% |
Greenville County | South Carolina | 568,227 | 527,249 | 7.77% |
Baltimore city | Maryland | 561,371 | 583,157 | -3.74% |
Lancaster County | Pennsylvania | 560,518 | 552,821 | 1.39% |
Guilford County | North Carolina | 553,275 | 539,321 | 2.59% |
Spokane County | Washington | 553,170 | 541,175 | 2.22% |
Chester County | Pennsylvania | 552,930 | 534,830 | 3.38% |
Stanislaus County | California | 551,634 | 553,257 | -0.29% |
Adams County | Colorado | 539,221 | 520,500 | 3.6% |
Plymouth County | Massachusetts | 537,368 | 530,200 | 1.35% |
Summit County | Ohio | 535,697 | 539,821 | -0.76% |
Ramsey County | Minnesota | 534,847 | 551,716 | -3.06% |
Montgomery County | Ohio | 534,118 | 537,119 | -0.56% |
Sedgwick County | Kansas | 531,570 | 524,821 | 1.29% |
Ada County | Idaho | 530,342 | 498,278 | 6.43% |
Camden County | New Jersey | 529,743 | 523,122 | 1.27% |
Clark County | Washington | 525,563 | 505,338 | 4% |
Morris County | New Jersey | 517,627 | 508,439 | 1.81% |
Kane County | Illinois | 515,825 | 516,181 | -0.07% |
Passaic County | New Jersey | 513,156 | 523,439 | -1.96% |
Polk County | Iowa | 509,326 | 493,022 | 3.31% |
Knox County | Tennessee | 505,958 | 480,516 | 5.29% |
Pinal County | Arizona | 503,441 | 430,187 | 17.03% |
Lake County | Indiana | 501,539 | 498,957 | 0.52% |
Washoe County | Nevada | 499,064 | 487,710 | 2.33% |
Prince William County | Virginia | 492,268 | 482,834 | 1.95% |
Richmond County | New York | 490,016 | 494,598 | -0.93% |
Seminole County | Florida | 489,919 | 471,455 | 3.92% |
Tulare County | California | 481,052 | 473,914 | 1.51% |
Sonoma County | California | 480,955 | 488,282 | -1.5% |
Sarasota County | Florida | 475,474 | 436,237 | 8.99% |
Burlington County | New Jersey | 472,233 | 461,682 | 2.29% |
York County | Pennsylvania | 468,231 | 456,720 | 2.52% |
Onondaga County | New York | 466,018 | 474,192 | -1.72% |
Hampden County | Massachusetts | 459,824 | 464,311 | -0.97% |
Osceola County | Florida | 453,025 | 391,141 | 15.82% |
Manatee County | Florida | 453,021 | 401,619 | 12.8% |
Virginia Beach city | Virginia | 452,229 | 459,684 | -1.62% |
Dakota County | Minnesota | 451,608 | 440,423 | 2.54% |
Solano County | California | 449,551 | 452,723 | -0.7% |
East Baton Rouge Parish | Louisiana | 446,843 | 455,899 | -1.99% |
Loudoun County | Virginia | 439,902 | 422,705 | 4.07% |
Lake County | Florida | 438,834 | 386,216 | 13.62% |
Santa Barbara County | California | 438,599 | 448,424 | -2.19% |
Berks County | Pennsylvania | 434,069 | 428,671 | 1.26% |
Charleston County | South Carolina | 429,384 | 409,899 | 4.75% |
Placer County | California | 429,048 | 405,927 | 5.7% |
Richland County | South Carolina | 428,750 | 415,671 | 3.15% |
Monterey County | California | 428,562 | 438,322 | -2.23% |
Cameron County | Texas | 428,509 | 421,480 | 1.67% |
Hillsborough County | New Hampshire | 427,215 | 422,913 | 1.02% |
Lucas County | Ohio | 424,249 | 430,859 | -1.53% |
Marion County | Florida | 423,481 | 377,472 | 12.19% |
Clackamas County | Oregon | 423,228 | 422,468 | 0.18% |
Madison County | Alabama | 421,595 | 390,503 | 7.96% |
St. Charles County | Missouri | 419,520 | 406,417 | 3.22% |
Jefferson Parish | Louisiana | 417,524 | 439,725 | -5.05% |
Waukesha County | Wisconsin | 414,909 | 407,496 | 1.82% |
Mobile County | Alabama | 411,882 | 414,377 | -0.6% |
Horry County | South Carolina | 411,809 | 353,765 | 16.41% |
Collier County | Florida | 411,104 | 377,310 | 8.96% |
Brazoria County | Texas | 409,642 | 373,493 | 9.68% |
Orange County | New York | 408,449 | 400,986 | 1.86% |
Genesee County | Michigan | 401,121 | 405,777 | -1.15% |
Pulaski County | Arkansas | 400,631 | 399,274 | 0.34% |
Bell County | Texas | 398,932 | 372,258 | 7.17% |
Allen County | Indiana | 397,446 | 386,103 | 2.94% |
Butler County | Ohio | 396,358 | 390,878 | 1.4% |
Forsyth County | North Carolina | 396,181 | 383,202 | 3.39% |
Douglas County | Colorado | 391,875 | 360,323 | 8.76% |
Chesterfield County | Virginia | 389,462 | 365,311 | 6.61% |
St. Lucie County | Florida | 388,286 | 331,441 | 17.15% |
Hamilton County | Tennessee | 385,126 | 367,251 | 4.87% |
Mercer County | New Jersey | 382,563 | 386,466 | -1.01% |
Lane County | Oregon | 380,181 | 383,308 | -0.82% |
Lehigh County | Pennsylvania | 379,234 | 374,501 | 1.26% |
Hamilton County | Indiana | 377,827 | 348,996 | 8.26% |
Davis County | Utah | 376,527 | 363,771 | 3.51% |
Anoka County | Minnesota | 375,774 | 364,499 | 3.09% |
Larimer County | Colorado | 373,965 | 359,923 | 3.9% |
Rutherford County | Tennessee | 373,520 | 343,298 | 8.8% |
Stark County | Ohio | 372,647 | 374,522 | -0.5% |
Weld County | Colorado | 368,618 | 331,458 | 11.21% |
Spartanburg County | South Carolina | 367,448 | 329,379 | 11.56% |
Galveston County | Texas | 366,101 | 351,590 | 4.13% |
Washtenaw County | Michigan | 364,568 | 371,834 | -1.95% |
Orleans Parish | Louisiana | 358,355 | 383,241 | -6.49% |
Nueces County | Texas | 352,988 | 353,398 | -0.12% |
Somerset County | New Jersey | 350,637 | 344,754 | 1.71% |
Westmoreland County | Pennsylvania | 350,328 | 354,346 | -1.13% |
Marion County | Oregon | 346,763 | 346,350 | 0.12% |
Rockland County | New York | 341,257 | 337,367 | 1.15% |
Durham County | North Carolina | 340,492 | 325,567 | 4.58% |
Cumberland County | North Carolina | 338,999 | 335,470 | 1.05% |
Howard County | Maryland | 336,636 | 332,814 | 1.15% |
Henrico County | Virginia | 334,967 | 334,905 | 0.02% |
St. Johns County | Florida | 333,148 | 277,099 | 20.23% |
Escambia County | Florida | 329,996 | 322,568 | 2.3% |
Lancaster County | Nebraska | 328,998 | 323,165 | 1.8% |
Luzerne County | Pennsylvania | 328,280 | 325,217 | 0.94% |
Boulder County | Colorado | 326,323 | 330,938 | -1.39% |
Lubbock County | Texas | 324,119 | 311,578 | 4.02% |
Rockingham County | New Hampshire | 321,745 | 314,621 | 2.26% |
Northampton County | Pennsylvania | 320,282 | 312,784 | 2.4% |
Fayette County | Kentucky | 320,027 | 322,627 | -0.81% |
Lorain County | Ohio | 319,789 | 313,498 | 2.01% |
Benton County | Arkansas | 319,204 | 286,618 | 11.37% |
Albany County | New York | 317,397 | 314,018 | 1.08% |
McHenry County | Illinois | 314,042 | 309,882 | 1.34% |
Lexington County | South Carolina | 313,951 | 295,047 | 6.41% |
Cumberland County | Maine | 311,623 | 303,585 | 2.65% |
Gloucester County | New Jersey | 310,079 | 302,563 | 2.48% |
Chatham County | Georgia | 306,285 | 295,089 | 3.79% |
Greene County | Missouri | 306,025 | 299,328 | 2.24% |
Ottawa County | Michigan | 305,826 | 296,907 | 3% |
Cleveland County | Oklahoma | 302,902 | 296,236 | 2.25% |
York County | South Carolina | 302,439 | 284,028 | 6.48% |
Thurston County | Washington | 299,367 | 295,998 | 1.14% |
Frederick County | Maryland | 299,242 | 272,786 | 9.7% |
Clayton County | Georgia | 298,201 | 299,439 | -0.41% |
Dutchess County | New York | 296,691 | 295,901 | 0.27% |
Leon County | Florida | 296,544 | 293,955 | 0.88% |
Merced County | California | 293,630 | 281,830 | 4.19% |
Cherokee County | Georgia | 292,010 | 268,156 | 8.9% |
Hays County | Texas | 291,869 | 243,968 | 19.63% |
Dauphin County | Pennsylvania | 289,781 | 286,710 | 1.07% |
Alachua County | Florida | 287,947 | 279,737 | 2.93% |
Ingham County | Michigan | 285,797 | 284,675 | 0.39% |
Anchorage Municipality | Alaska | 285,167 | 290,893 | -1.97% |
Washington County | Minnesota | 281,703 | 268,389 | 4.96% |
San Luis Obispo County | California | 281,232 | 281,884 | -0.23% |
Winnebago County | Illinois | 280,302 | 284,916 | -1.62% |
Forsyth County | Georgia | 278,462 | 252,901 | 10.11% |
Buncombe County | North Carolina | 278,012 | 269,702 | 3.08% |
St. Tammany Parish | Louisiana | 277,929 | 265,000 | 4.88% |
Kitsap County | Washington | 277,503 | 275,823 | 0.61% |
St. Louis city | Missouri | 277,315 | 300,496 | -7.71% |
Atlantic County | New Jersey | 275,044 | 274,190 | 0.31% |
Weber County | Utah | 274,392 | 262,988 | 4.34% |
St. Joseph County | Indiana | 273,414 | 272,682 | 0.27% |
Cumberland County | Pennsylvania | 272,944 | 260,258 | 4.87% |
Brown County | Wisconsin | 272,766 | 268,951 | 1.42% |
McLennan County | Texas | 271,004 | 261,193 | 3.76% |
Webb County | Texas | 270,677 | 267,363 | 1.24% |
Sussex County | Delaware | 270,571 | 238,629 | 13.39% |
Williamson County | Tennessee | 268,182 | 249,552 | 7.47% |
Washington County | Arkansas | 266,416 | 246,774 | 7.96% |
Erie County | Pennsylvania | 266,302 | 270,578 | -1.58% |
Berkeley County | South Carolina | 265,482 | 231,533 | 14.66% |
Harford County | Maryland | 265,473 | 261,230 | 1.62% |
Canyon County | Idaho | 264,456 | 233,013 | 13.49% |
Union County | North Carolina | 263,732 | 239,470 | 10.13% |
Kalamazoo County | Michigan | 263,538 | 261,796 | 0.67% |
Clay County | Missouri | 262,614 | 254,137 | 3.34% |
Madison County | Illinois | 261,932 | 265,643 | -1.4% |
Henry County | Georgia | 260,754 | 241,852 | 7.82% |
Baldwin County | Alabama | 260,483 | 233,227 | 11.69% |
Santa Cruz County | California | 258,854 | 270,474 | -4.3% |
Yakima County | Washington | 256,267 | 256,733 | -0.18% |
Chesapeake city | Virginia | 255,313 | 249,781 | 2.21% |
Warren County | Ohio | 254,561 | 243,228 | 4.66% |
Marin County | California | 252,660 | 261,306 | -3.31% |
Yavapai County | Arizona | 251,932 | 237,217 | 6.2% |
Lafayette Parish | Louisiana | 251,786 | 242,145 | 3.98% |
Jefferson County | Texas | 251,391 | 256,133 | -1.85% |
St. Clair County | Illinois | 249,771 | 256,844 | -2.75% |
Johnston County | North Carolina | 249,008 | 217,808 | 14.32% |
Smith County | Texas | 248,423 | 234,199 | 6.07% |
Brazos County | Texas | 247,475 | 234,505 | 5.53% |
Montgomery County | Tennessee | 244,845 | 221,281 | 10.65% |
Cabarrus County | North Carolina | 244,123 | 227,219 | 7.44% |
New Hanover County | North Carolina | 241,920 | 226,326 | 6.89% |
Gaston County | North Carolina | 240,514 | 228,532 | 5.24% |
Saratoga County | New York | 238,954 | 235,793 | 1.34% |
Clay County | Florida | 238,244 | 218,951 | 8.81% |
Tuscaloosa County | Alabama | 238,056 | 231,547 | 2.81% |
Delaware County | Ohio | 236,746 | 215,166 | 10.03% |
Shelby County | Alabama | 235,967 | 223,912 | 5.38% |
Arlington County | Virginia | 234,646 | 238,814 | -1.75% |
Ellis County | Texas | 233,335 | 194,317 | 20.08% |
Whatcom County | Washington | 233,240 | 227,449 | 2.55% |
Jefferson County | Missouri | 233,240 | 226,937 | 2.78% |
Lake County | Ohio | 231,544 | 232,516 | -0.42% |
Barnstable County | Massachusetts | 231,392 | 228,012 | 1.48% |
Richmond city | Virginia | 230,127 | 226,936 | 1.41% |
Norfolk city | Virginia | 229,302 | 237,789 | -3.57% |
Linn County | Iowa | 229,004 | 230,419 | -0.61% |
Doña Ana County | New Mexico | 226,890 | 220,060 | 3.1% |
Oneida County | New York | 226,752 | 231,082 | -1.87% |
Mohave County | Arizona | 226,459 | 214,185 | 5.73% |
Mahoning County | Ohio | 225,270 | 228,009 | -1.2% |
Caddo Parish | Louisiana | 223,838 | 236,945 | -5.53% |
Montgomery County | Alabama | 223,659 | 228,342 | -2.05% |
Hall County | Georgia | 221,913 | 203,473 | 9.06% |
Okaloosa County | Florida | 220,464 | 212,085 | 3.95% |
York County | Maine | 220,222 | 212,260 | 3.75% |
Jackson County | Oregon | 219,867 | 223,620 | -1.68% |
Yolo County | California | 219,070 | 216,291 | 1.28% |
Hernando County | Florida | 218,679 | 195,624 | 11.79% |
Onslow County | North Carolina | 218,321 | 207,757 | 5.08% |
Benton County | Washington | 217,609 | 207,419 | 4.91% |
Yuma County | Arizona | 217,568 | 205,659 | 5.79% |
Anderson County | South Carolina | 216,500 | 204,195 | 6.03% |
Lackawanna County | Pennsylvania | 216,496 | 215,539 | 0.44% |
Clermont County | Ohio | 213,265 | 208,750 | 2.16% |
Sumner County | Tennessee | 212,267 | 197,416 | 7.52% |
Hinds County | Mississippi | 212,185 | 226,765 | -6.43% |
Harrison County | Mississippi | 210,781 | 208,809 | 0.94% |
Deschutes County | Oregon | 210,543 | 199,464 | 5.55% |
Washington County | Pennsylvania | 210,524 | 209,434 | 0.52% |
Johnson County | Texas | 210,316 | 180,964 | 16.22% |
Minnehaha County | South Dakota | 210,015 | 197,695 | 6.23% |
Charlotte County | Florida | 209,686 | 187,995 | 11.54% |
Hawaii County | Hawaii | 208,882 | 200,744 | 4.05% |
Niagara County | New York | 208,447 | 212,126 | -1.73% |
Santa Rosa County | Florida | 208,125 | 189,011 | 10.11% |
Washington County | Utah | 207,174 | 182,015 | 13.82% |
Butte County | California | 206,975 | 210,151 | -1.51% |
Elkhart County | Indiana | 205,945 | 206,991 | -0.51% |
Calcasieu Parish | Louisiana | 205,234 | 216,481 | -5.2% |
Champaign County | Illinois | 205,119 | 205,654 | -0.26% |
Richmond County | Georgia | 204,484 | 206,524 | -0.99% |
Iredell County | North Carolina | 203,546 | 187,683 | 8.45% |
Sarpy County | Nebraska | 203,345 | 191,167 | 6.37% |
Comal County | Texas | 203,107 | 163,659 | 24.1% |
Beaufort County | South Carolina | 201,811 | 187,815 | 7.45% |
St. Louis County | Minnesota | 201,470 | 200,083 | 0.69% |
Muscogee County | Georgia | 201,322 | 207,006 | -2.75% |
Trumbull County | Ohio | 200,020 | 201,681 | -0.82% |
Cass County | North Dakota | 200,011 | 184,876 | 8.19% |
Butler County | Pennsylvania | 199,458 | 194,077 | 2.77% |
Kaufman County | Texas | 198,769 | 147,140 | 35.09% |
Livingston County | Michigan | 197,380 | 193,968 | 1.76% |
Racine County | Wisconsin | 197,265 | 197,568 | -0.15% |
Bay County | Florida | 196,328 | 174,525 | 12.49% |
DeSoto County | Mississippi | 195,350 | 186,122 | 4.96% |
Broome County | New York | 194,896 | 198,156 | -1.65% |
Guadalupe County | Texas | 194,206 | 173,697 | 11.81% |
Outagamie County | Wisconsin | 194,199 | 190,966 | 1.69% |
Sangamon County | Illinois | 192,831 | 196,144 | -1.69% |
Kent County | Delaware | 191,820 | 182,315 | 5.21% |
El Dorado County | California | 191,643 | 191,245 | 0.21% |
Boone County | Missouri | 191,205 | 184,047 | 3.89% |
Hendricks County | Indiana | 189,655 | 175,596 | 8.01% |
Tippecanoe County | Indiana | 189,347 | 186,387 | 1.59% |
Paulding County | Georgia | 187,575 | 169,580 | 10.61% |
Saginaw County | Michigan | 187,191 | 189,882 | -1.42% |
Kootenai County | Idaho | 186,730 | 172,785 | 8.07% |
Lee County | Alabama | 185,732 | 174,754 | 6.28% |
Licking County | Ohio | 184,637 | 178,784 | 3.27% |
Medina County | Ohio | 184,595 | 182,646 | 1.07% |
Canadian County | Oklahoma | 182,404 | 155,434 | 17.35% |
Ulster County | New York | 182,346 | 181,271 | 0.59% |
Newport News city | Virginia | 182,256 | 186,047 | -2.04% |
Midland County | Texas | 182,197 | 170,362 | 6.95% |
Alamance County | North Carolina | 181,712 | 171,960 | 5.67% |
Parker County | Texas | 181,050 | 149,552 | 21.06% |
Vanderburgh County | Indiana | 180,057 | 180,336 | -0.15% |
Aiken County | South Carolina | 180,032 | 169,168 | 6.42% |
Shasta County | California | 179,795 | 182,002 | -1.21% |
Imperial County | California | 179,174 | 179,612 | -0.24% |
Shawnee County | Kansas | 177,955 | 178,709 | -0.42% |
Carroll County | Maryland | 177,806 | 172,941 | 2.81% |
Muskegon County | Michigan | 177,589 | 174,784 | 1.6% |
Davidson County | North Carolina | 177,228 | 169,203 | 4.74% |
Peoria County | Illinois | 177,026 | 181,319 | -2.37% |
Pitt County | North Carolina | 176,628 | 170,390 | 3.66% |
Porter County | Indiana | 175,822 | 173,318 | 1.44% |
Scott County | Iowa | 174,789 | 174,609 | 0.1% |
Houston County | Georgia | 174,173 | 164,356 | 5.97% |
Charles County | Maryland | 173,835 | 166,741 | 4.25% |
Kanawha County | West Virginia | 173,746 | 180,233 | -3.6% |
Dorchester County | South Carolina | 173,616 | 162,043 | 7.14% |
Winnebago County | Wisconsin | 172,782 | 171,815 | 0.56% |
Kenton County | Kentucky | 172,362 | 169,271 | 1.83% |
Indian River County | Florida | 172,323 | 160,446 | 7.4% |
Yellowstone County | Montana | 171,816 | 165,218 | 3.99% |
Kent County | Rhode Island | 171,422 | 170,406 | 0.6% |
Citrus County | Florida | 170,884 | 154,568 | 10.56% |
Greene County | Ohio | 170,355 | 168,131 | 1.32% |
According to the most recent United States Census, Los Angeles County in California is the largest county in the nation, with a total population of 10,150,558 – an increase of 3.5% since 2010. Chicago's Cook County follows and, although very large in its own right, is half the size of Los Angeles County with 5,231,356 residents. Harris County in Texas, Maricopa County in Arizona, and San Diego County in California make up the rest of the top five – all have populations in excess of three million.
Statistics from 2018 show that a number of counties have had substantial population growths since 2010. Fort Bend County in Texas tops the list, with its population having grown from 590,286 in 2010 to well over a population of 764,000 in 2018 – an increase of 30.8%. Three other counties in Texas are also in the top five counties with increased populations. These are Denton County (with an increase of 26.2%), Collin County (24%) and Travis County (19.7%).
Conversely, while Wayne County is the most populous county in state of Michigan, it has seen its population decrease by 3.7% since 2010, from 1,815,069 to 1,756,598. Counties in two other midwestern states, Missouri and Ohio, have also had population decreases, although both are more modest. Ohio's Cuyahoga County has decreased from 1,278,200 to just around 1,248,000, representing a reduction of 2.5%, while St. Louis County, Missouri's population has decreased from 998,681 in 2010 to 998,216 in 2018. Just one county, Hartford County in Connecticut, shows nearly zero population change, with census figures reporting a population of approximately 895,500 in both 2010 and 2018.
0
1M
2M
3M
4M
5M
6M
7M
8M
9M
10M