100 largest counties

Population Estimates for the 100 Largest U.S. Counties Based on July 1, 2005 Population Estimates: April 1, 2000 to July 1, 2005
Geographic Area Population estimates April 1, 2000
July 1, 2005 July 1, 2004 July 1, 2003 July 1, 2002 July 1, 2001 July 1, 2000 Estimates base Census
Los Angeles County, CA 9,935,475 9,917,331 9,857,690 9,763,815 9,655,145 9,546,019 9,519,330 9,519,338
Cook County, IL 5,303,683 5,327,165 5,349,219 5,365,567 5,378,928 5,377,536 5,376,822 5,376,741
Harris County, TX 3,693,050 3,641,114 3,593,321 3,540,254 3,472,890 3,414,955 3,400,580 3,400,578
Maricopa County, AZ 3,635,528 3,498,587 3,388,711 3,293,441 3,195,893 3,096,692 3,072,335 3,072,149
Orange County, CA 2,988,072 2,982,094 2,959,273 2,927,768 2,895,293 2,857,017 2,846,289 2,846,289
San Diego County, CA 2,933,462 2,935,190 2,921,104 2,899,193 2,862,808 2,824,587 2,813,833 2,813,833
Kings County, NY 2,486,235 2,497,859 2,483,164 2,479,338 2,474,347 2,466,784 2,465,525 2,465,326
Miami-Dade County, FL 2,376,014 2,358,714 2,335,739 2,314,547 2,286,731 2,260,317 2,253,779 2,253,362
Dallas County, TX 2,305,454 2,291,071 2,281,411 2,273,205 2,262,154 2,225,439 2,218,842 2,218,899
Queens County, NY 2,241,600 2,250,718 2,244,238 2,248,293 2,244,077 2,231,312 2,229,379 2,229,379
Wayne County, MI 1,998,217 2,013,771 2,027,900 2,039,491 2,050,659 2,059,292 2,061,162 2,061,162
San Bernardino County, CA 1,963,535 1,916,418 1,863,158 1,809,080 1,761,798 1,719,093 1,709,434 1,709,434
Riverside County, CA 1,946,419 1,869,465 1,782,155 1,694,183 1,620,489 1,559,958 1,545,387 1,545,387
King County, WA 1,793,583 1,777,746 1,765,530 1,758,863 1,753,670 1,738,884 1,737,043 1,737,034
Broward County, FL 1,777,638 1,753,000 1,728,336 1,703,998 1,670,494 1,632,662 1,623,018 1,623,018
Clark County, NV 1,710,551 1,648,524 1,575,165 1,515,522 1,455,980 1,393,194 1,375,738 1,375,765
Santa Clara County, CA 1,699,052 1,681,980 1,675,492 1,674,727 1,689,783 1,686,252 1,682,585 1,682,585
Tarrant County, TX 1,620,479 1,587,019 1,557,128 1,525,317 1,488,780 1,454,401 1,446,172 1,446,219
New York County, NY 1,593,200 1,590,911 1,578,386 1,565,190 1,560,012 1,539,558 1,537,372 1,537,195
Bexar County, TX 1,518,370 1,492,361 1,466,101 1,441,574 1,415,473 1,397,805 1,392,931 1,392,931
Suffolk County, NY 1,474,927 1,474,519 1,468,053 1,454,995 1,441,556 1,424,196 1,419,369 1,419,369
Philadelphia County, PA 1,463,281 1,471,255 1,477,055 1,486,594 1,498,501 1,513,701 1,517,550 1,517,550
Middlesex County, MA 1,459,011 1,462,822 1,466,025 1,468,534 1,473,486 1,468,781 1,466,394 1,465,396
Alameda County, CA 1,448,905 1,452,096 1,458,105 1,463,859 1,470,249 1,450,391 1,443,741 1,443,741
Sacramento County, CA 1,363,482 1,351,428 1,330,377 1,301,393 1,266,243 1,230,236 1,223,499 1,223,499
Bronx County, NY 1,357,589 1,362,523 1,363,875 1,358,895 1,346,550 1,334,801 1,332,650 1,332,650
Cuyahoga County, OH 1,335,317 1,349,047 1,361,330 1,372,303 1,382,829 1,392,131 1,393,845 1,393,978
Nassau County, NY 1,333,137 1,337,693 1,339,759 1,339,311 1,336,779 1,336,454 1,334,544 1,334,544
Palm Beach County, FL 1,268,548 1,244,189 1,212,269 1,187,243 1,158,587 1,135,780 1,131,191 1,131,184
Allegheny County, PA 1,235,841 1,247,512 1,258,476 1,265,773 1,272,568 1,279,817 1,281,666 1,281,666
Oakland County, MI 1,214,361 1,212,181 1,208,013 1,202,962 1,202,176 1,196,614 1,194,156 1,194,156
Hillsborough County, FL 1,132,152 1,100,333 1,072,745 1,050,975 1,026,149 1,003,128 998,948 998,948
Hennepin County, MN 1,119,364 1,119,866 1,119,949 1,120,208 1,122,996 1,117,645 1,116,039 1,116,200
Franklin County, OH 1,090,771 1,087,462 1,086,086 1,081,835 1,078,679 1,071,571 1,068,869 1,068,978
Orange County, FL 1,023,023 989,873 963,638 944,525 925,988 902,297 896,344 896,344
Contra Costa County, CA 1,017,787 1,007,606 999,372 988,396 976,701 953,670 948,816 948,816
Fairfax County, VA 1,006,529 1,002,488 997,152 992,292 986,142 975,174 969,749 969,749
St. Louis County, MO 1,004,666 1,007,723 1,011,781 1,014,515 1,016,483 1,016,419 1,016,300 1,016,315
Salt Lake County, UT 948,172 934,838 924,896 917,557 910,045 900,623 898,412 898,387
Westchester County, NY 940,807 941,380 939,897 937,833 933,101 925,934 923,361 923,459
Erie County, NY 930,703 935,946 939,849 941,989 945,575 949,325 950,265 950,265
DuPage County, IL 929,113 928,126 924,495 921,047 915,157 906,743 904,152 904,161
Pinellas County, FL 928,032 927,498 925,566 924,448 923,570 922,257 921,495 921,482
Montgomery County, MD 927,583 921,631 916,073 906,863 893,927 878,545 874,165 873,341
Pima County, AZ 924,786 906,540 890,456 877,243 861,212 848,560 843,746 843,746
Milwaukee County, WI 921,654 926,764 931,437 933,864 936,693 939,600 940,164 940,164
Fulton County, GA 915,623 905,802 887,454 864,516 846,388 816,647 815,806 816,006
Shelby County, TN 909,035 906,287 904,602 901,375 898,721 898,265 897,472 897,472
Honolulu County, HI 905,266 899,562 893,075 886,220 879,343 875,377 876,156 876,156
Fairfield County, CT 902,775 901,819 899,616 894,778 889,867 884,788 882,567 882,567
Bergen County, NJ 902,561 901,745 898,297 894,696 891,040 885,865 884,118 884,118
Travis County, TX 888,185 868,873 854,029 845,598 842,547 819,743 812,312 812,280
Fresno County, CA 877,584 865,620 850,415 831,827 814,494 802,170 799,407 799,407
Hartford County, CT 877,393 873,879 872,578 866,861 861,979 858,525 857,183 857,183
Marion County, IN 863,133 861,847 863,289 862,174 863,098 860,454 860,454 860,454
New Haven County, CT 846,766 844,342 841,307 834,674 829,365 825,062 824,008 824,008
Prince George's County, MD 846,123 841,642 835,159 826,609 816,287 802,769 800,691 801,515
Macomb County, MI 829,453 822,965 815,557 807,977 800,411 790,929 788,149 788,149
Duval County, FL 826,436 819,623 811,531 801,793 790,485 779,689 778,866 778,879
Hamilton County, OH 806,652 813,639 822,318 830,036 838,663 843,974 845,276 845,303
Mecklenburg County, NC 796,372 771,573 752,744 734,927 719,269 700,311 695,370 695,454
Ventura County, CA 796,106 796,165 790,237 780,562 768,429 756,673 753,197 753,197
Essex County, NJ 791,057 795,015 797,184 796,382 794,714 792,666 792,305 793,633
Middlesex County, NJ 789,516 783,665 777,646 770,042 761,957 753,076 750,162 750,162
Baltimore County, MD 786,113 781,171 775,902 769,124 762,644 756,000 754,292 754,292
Worcester County, MA 783,262 778,608 775,371 769,301 761,732 752,702 749,973 750,963
Montgomery County, PA 775,883 773,375 770,538 764,146 758,276 750,943 748,987 750,097
Kern County, CA 756,825 734,077 713,249 692,892 675,876 663,789 661,653 661,645
Pierce County, WA 753,787 745,778 740,184 731,124 718,229 704,026 700,818 700,820
Wake County, NC 748,815 719,733 698,697 677,725 657,210 633,233 627,866 627,846
San Francisco County, CA 739,426 743,193 751,960 761,988 774,374 776,677 776,733 776,733
Essex County, MA 738,301 737,447 737,706 736,313 732,412 725,591 723,419 723,419
Monroe County, NY 733,366 735,816 736,521 736,321 735,409 735,697 735,343 735,343
Gwinnett County, GA 726,273 700,577 673,651 648,808 623,517 596,547 588,448 588,448
El Paso County, TX 721,598 712,617 702,507 693,682 687,635 681,508 679,622 679,622
Lake County, IL 702,682 692,869 682,335 675,047 662,328 648,800 644,620 644,356
Jefferson County, KY 699,827 698,903 698,059 695,843 694,757 693,872 693,604 693,604
San Mateo County, CA 699,610 698,156 698,800 701,206 707,271 708,454 707,163 707,161
Oklahoma County, OK 684,543 679,498 676,416 671,409 664,687 661,699 660,448 660,448
Hidalgo County, TX 678,275 657,310 635,373 612,758 591,189 574,029 569,463 569,463
DeKalb County, GA 677,959 674,335 673,783 673,170 672,428 668,389 666,072 665,865
Multnomah County, OR 672,906 671,363 677,562 674,887 668,490 661,466 660,469 660,486
San Joaquin County, CA 664,116 649,241 631,337 612,379 592,923 568,259 563,598 563,598
Cobb County, GA 663,818 654,649 645,820 638,349 626,806 612,467 607,751 607,751
Jackson County, MO 662,959 662,185 661,774 660,931 658,228 655,642 654,880 654,880
Collin County, TX 659,457 628,426 597,322 568,804 537,791 500,136 491,777 491,675
Jefferson County, AL 657,229 658,468 659,215 659,368 661,110 662,055 662,040 662,047
Snohomish County, WA 655,944 644,205 636,790 631,854 622,738 609,175 606,024 606,024
Suffolk County, MA 654,428 664,263 675,738 685,072 691,223 689,943 689,807 689,807
Norfolk County, MA 653,595 653,621 653,612 654,232 653,564 651,254 650,308 650,308
Will County, IL 642,813 617,494 585,609 559,381 533,275 508,339 502,267 502,266
Providence County, RI 639,653 641,874 639,018 634,004 627,746 622,814 621,602 621,602
Monmouth County, NJ 635,952 635,062 632,928 628,222 622,578 617,275 615,301 615,301
Baltimore city, MD 635,815 641,943 643,304 636,699 645,305 648,554 651,154 651,154
Bucks County, PA 621,342 617,214 612,853 609,076 604,122 599,490 597,632 597,635
Bernalillo County, NM 603,562 592,538 581,663 572,195 561,881 556,870 556,002 556,678
Hudson County, NJ 603,521 605,359 607,497 609,709 612,947 609,483 608,975 608,975
Kent County, MI 596,666 592,999 590,327 586,405 581,886 576,289 574,335 574,335
Davidson County, TN 575,261 571,948 569,731 569,016 571,178 569,950 569,892 569,891
Tulsa County, OK 572,059 568,611 569,813 569,780 566,284 563,832 563,301 563,299
Note: The April 1, 2000 Population Estimates base reflects changes to the Census 2000 population from the Count Question Resolution program and geographic program revisions.
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Suggested Citation:
Table CO-EST2005-08 - Population Estimates for the 100 Largest U.S. Counties Based on July 1, 2005 Population Estimates: April 1, 2000 to July 1, 2005
Source: Population Division, U.S. Census Bureau

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