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Counties by Population

Population figures from the Census Bureau reflect the total count of residents in each area.

All 3,222 counties ranked by Population, from highest to lowest. Click the column header to reverse sort order. Data from the U.S. Census Bureau, ACS 5-Year Estimates, 2023.

States Counties Cities Metros ZIPs
# Counties Population
1 Los Angeles County, California 9,848,406
2 Cook County, Illinois 5,185,812
3 Harris County, Texas 4,758,579
4 Maricopa County, Arizona 4,491,987
5 San Diego County, California 3,282,782
6 Orange County, California 3,164,063
7 Miami-Dade County, Florida 2,685,296
8 Kings County, New York 2,646,306
9 Dallas County, Texas 2,603,816
10 Riverside County, California 2,449,909
11 Queens County, New York 2,330,124
12 Clark County, Nevada 2,293,764
13 King County, Washington 2,262,713
14 San Bernardino County, California 2,187,816
15 Tarrant County, Texas 2,135,743
16 Bexar County, Texas 2,037,344
17 Broward County, Florida 1,946,127
18 Santa Clara County, California 1,903,297
19 Wayne County, Michigan 1,773,767
20 Alameda County, California 1,651,949
21 New York County, New York 1,627,788
22 Middlesex County, Massachusetts 1,622,896
23 Sacramento County, California 1,584,047
24 Philadelphia County, Pennsylvania 1,582,432
25 Suffolk County, New York 1,525,680
26 Palm Beach County, Florida 1,507,453
27 Hillsborough County, Florida 1,489,634
28 Orange County, Florida 1,440,471
29 Bronx County, New York 1,419,250
30 Nassau County, New York 1,388,138
31 Franklin County, Ohio 1,321,635
32 Travis County, Texas 1,307,625
33 Oakland County, Michigan 1,272,294
34 Hennepin County, Minnesota 1,268,903
35 Cuyahoga County, Ohio 1,249,418
36 Allegheny County, Pennsylvania 1,240,476
37 Salt Lake County, Utah 1,184,689
38 Contra Costa County, California 1,161,458
39 Wake County, North Carolina 1,151,009
40 Fairfax County, Virginia 1,144,474
41 Mecklenburg County, North Carolina 1,130,906
42 Collin County, Texas 1,116,601
43 Fulton County, Georgia 1,068,507
44 Montgomery County, Maryland 1,057,586
45 Pima County, Arizona 1,049,947
46 Fresno County, California 1,012,152
47 Duval County, Florida 1,007,189
48 Honolulu County, Hawaii 1,003,666
49 Westchester County, New York 996,888
50 St. Louis County, Missouri 996,618
51 Marion County, Indiana 971,822
52 Capitol Planning Region, Connecticut 969,029
53 Gwinnett County, Georgia 966,972
54 Pinellas County, Florida 960,565
55 Prince George's County, Maryland 955,584
56 Bergen County, New Jersey 954,717
57 Erie County, New York 950,044
58 Denton County, Texas 945,644
59 Milwaukee County, Wisconsin 927,656
60 DuPage County, Illinois 927,263
61 Pierce County, Washington 924,106
62 Shelby County, Tennessee 922,195
63 Kern County, California 910,433
64 Hidalgo County, Texas 880,921
65 Macomb County, Michigan 877,624
66 El Paso County, Texas 866,275
67 Worcester County, Massachusetts 861,664
68 Middlesex County, New Jersey 861,535
69 Montgomery County, Pennsylvania 861,225
70 Fort Bend County, Texas 859,721
71 Essex County, New Jersey 854,130
72 Baltimore County, Maryland 849,586
73 Ventura County, California 838,259
74 San Francisco County, California 836,321
75 Snohomish County, Washington 834,648
76 Hamilton County, Ohio 827,878
77 Essex County, Massachusetts 807,258
78 Multnomah County, Oregon 803,863
79 Oklahoma County, Oklahoma 800,487
80 Lee County, Florida 792,692
81 San Joaquin County, California 787,416
82 Suffolk County, Massachusetts 782,172
83 Jefferson County, Kentucky 777,392
84 Cobb County, Georgia 769,152
85 DeKalb County, Georgia 762,105
86 Polk County, Florida 760,961
87 Monroe County, New York 754,068
88 San Mateo County, California 745,100
89 El Paso County, Colorado 736,008
90 Norfolk County, Massachusetts 724,540
91 Jackson County, Missouri 717,021
92 Denver County, Colorado 713,734
93 Lake County, Illinois 711,885
94 Hudson County, New Jersey 710,478
95 Davidson County, Tennessee 709,846
96 Will County, Illinois 698,450
97 Utah County, Utah 683,622
98 Bernalillo County, New Mexico 674,357
99 Tulsa County, Oklahoma 673,708
100 District of Columbia, District of Columbia 672,079