Ranking of US Counties By Population in 2011
Updated on June 18, 2025.
Based on the US Census Vintage data estimates, in 2011, the Population for the United States was 311.58M. Among all US counties, Los Angeles County had the highest population (9.87M), followed by Cook County (5.22M), and Harris County (4.18M).
On the other hand, Kalawao County had the lowest population (90) followed by Loving County (95), and King County (258).
The chart below shows the top 10 counties with high population, and the table below shows the ranking of the top 200 US counties.
You can see similar ranking information for related topics. You can also see links at the bottom of the page for the ranking of counties for each state.
You may also be interested in:
Related Topics: US Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Ranking of US Counties By Population in 2011
Items per page:
25
0 of 0
| Rank | County | Population |
|---|---|---|
| 1 | Los Angeles County, CA | 9873700 |
| 2 | Cook County, IL | 5219636 |
| 3 | Harris County, TX | 4179279 |
| 4 | Maricopa County, AZ | 3875371 |
| 5 | San Diego County, CA | 3137236 |
| 6 | Orange County, CA | 3050199 |
| 7 | Miami-Dade County, FL | 2544511 |
| 8 | Kings County, NY | 2540918 |
| 9 | Dallas County, TX | 2409257 |
| 10 | Queens County, NY | 2255261 |
| 11 | Riverside County, CA | 2233840 |
| 12 | San Bernardino County, CA | 2060596 |
| 13 | King County, WA | 1974499 |
| 14 | Clark County, NV | 1962162 |
| 15 | Tarrant County, TX | 1848598 |
| 16 | Santa Clara County, CA | 1811891 |
| 17 | Wayne County, MI | 1803003 |
| 18 | Broward County, FL | 1787096 |
| 19 | Bexar County, TX | 1755360 |
| 20 | New York County, NY | 1608717 |
| 21 | Philadelphia County, PA | 1540615 |
| 22 | Alameda County, CA | 1530893 |
| 23 | Middlesex County, MA | 1524996 |
| 24 | Suffolk County, NY | 1498910 |
| 25 | Sacramento County, CA | 1433712 |
| 26 | Bronx County, NY | 1396954 |
| 27 | Nassau County, NY | 1346207 |
| 28 | Palm Beach County, FL | 1336875 |
| 29 | Cuyahoga County, OH | 1270424 |
| 30 | Hillsborough County, FL | 1255639 |
| 31 | Allegheny County, PA | 1228437 |
| 32 | Oakland County, MI | 1212718 |
| 33 | Franklin County, OH | 1180917 |
| 34 | Orange County, FL | 1170699 |
| 35 | Hennepin County, MN | 1169581 |
| 36 | Fairfax County, VA | 1103571 |
| 37 | Contra Costa County, CA | 1065361 |
| 38 | Travis County, TX | 1061662 |
| 39 | Salt Lake County, UT | 1047702 |
| 40 | St. Louis County, MO | 1000147 |
| 41 | Montgomery County, MD | 991325 |
| 42 | Pima County, AZ | 988500 |
| 43 | Honolulu County, HI | 967510 |
| 44 | Westchester County, NY | 956423 |
| 45 | Milwaukee County, WI | 951376 |
| 46 | Fulton County, GA | 947582 |
| 47 | Mecklenburg County, NC | 944015 |
| 48 | Fresno County, CA | 939251 |
| 49 | Shelby County, TN | 933321 |
| 50 | Wake County, NC | 928905 |
| 51 | Fairfield County, CT | 928099 |
| 52 | DuPage County, IL | 924866 |
| 53 | Erie County, NY | 919901 |
| 54 | Pinellas County, FL | 918574 |
| 55 | Bergen County, NJ | 912024 |
| 56 | Marion County, IN | 911294 |
| 57 | Hartford County, CT | 896900 |
| 58 | Prince George's County, MD | 874594 |
| 59 | Duval County, FL | 872483 |
| 60 | New Haven County, CT | 863974 |
| 61 | Kern County, CA | 848651 |
| 62 | Macomb County, MI | 844159 |
| 63 | Ventura County, CA | 829908 |
| 64 | Gwinnett County, GA | 822407 |
| 65 | El Paso County, TX | 819796 |
| 66 | San Francisco County, CA | 815694 |
| 67 | Middlesex County, NJ | 815253 |
| 68 | Baltimore County, MD | 813021 |
| 69 | Collin County, TX | 812083 |
| 70 | Pierce County, WA | 807728 |
| 71 | Montgomery County, PA | 805333 |
| 72 | Worcester County, MA | 804107 |
| 73 | Hamilton County, OH | 800746 |
| 74 | Hidalgo County, TX | 795305 |
| 75 | Essex County, NJ | 785576 |
| 76 | Essex County, MA | 751553 |
| 77 | Multnomah County, OR | 749926 |
| 78 | Monroe County, NY | 746821 |
| 79 | Jefferson County, KY | 746458 |
| 80 | Suffolk County, MA | 737285 |
| 81 | Oklahoma County, OK | 730890 |
| 82 | San Mateo County, CA | 728945 |
| 83 | Snohomish County, WA | 722149 |
| 84 | Lake County, IL | 701652 |
| 85 | DeKalb County, GA | 698496 |
| 86 | Cobb County, GA | 696629 |
| 87 | San Joaquin County, CA | 694265 |
| 88 | Denton County, TX | 684842 |
| 89 | Will County, IL | 680813 |
| 90 | Norfolk County, MA | 677823 |
| 91 | Jackson County, MO | 675644 |
| 92 | Bernalillo County, NM | 670356 |
| 93 | Jefferson County, AL | 658175 |
| 94 | Hudson County, NJ | 645658 |
| 95 | El Paso County, CO | 637376 |
| 96 | Davidson County, TN | 636083 |
| 97 | Lee County, FL | 631198 |
| 98 | Providence County, RI | 629493 |
| 99 | Monmouth County, NJ | 629144 |
| 100 | Bucks County, PA | 626164 |
| 101 | Baltimore city, MD | 620493 |
| 102 | Denver County, CO | 620250 |
| 103 | Polk County, FL | 610026 |
| 104 | Tulsa County, OK | 609323 |
| 105 | Kent County, MI | 608543 |
| 106 | Fort Bend County, TX | 605979 |
| 107 | Arapahoe County, CO | 586433 |
| 108 | Ocean County, NJ | 578922 |
| 109 | Delaware County, PA | 559338 |
| 110 | Johnson County, KS | 553034 |
| 111 | Bristol County, MA | 549355 |
| 112 | Anne Arundel County, MD | 544863 |
| 113 | Brevard County, FL | 544442 |
| 114 | New Castle County, DE | 542031 |
| 115 | Summit County, OH | 541368 |
| 116 | Washington County, OR | 541041 |
| 117 | Jefferson County, CO | 540582 |
| 118 | Union County, NJ | 539918 |
| 119 | Montgomery County, OH | 534638 |
| 120 | Utah County, UT | 530844 |
| 121 | Douglas County, NE | 524264 |
| 122 | Lancaster County, PA | 523996 |
| 123 | Kane County, IL | 519091 |
| 124 | Stanislaus County, CA | 517515 |
| 125 | Ramsey County, MN | 515856 |
| 126 | Camden County, NJ | 512610 |
| 127 | Chester County, PA | 503488 |
| 128 | Passaic County, NJ | 503257 |
| 129 | Sedgwick County, KS | 501051 |
| 130 | Plymouth County, MA | 498212 |
| 131 | Dane County, WI | 496121 |
| 132 | Lake County, IN | 495035 |
| 133 | Guilford County, NC | 495022 |
| 134 | Morris County, NJ | 494801 |
| 135 | Volusia County, FL | 494558 |
| 136 | Sonoma County, CA | 487231 |
| 137 | Spokane County, WA | 473516 |
| 138 | Montgomery County, TX | 471456 |
| 139 | Richmond County, NY | 471014 |
| 140 | Onondaga County, NY | 467679 |
| 141 | Pasco County, FL | 466529 |
| 142 | Hampden County, MA | 466191 |
| 143 | Greenville County, SC | 458972 |
| 144 | Adams County, CO | 452209 |
| 145 | Burlington County, NJ | 450250 |
| 146 | Tulare County, CA | 446709 |
| 147 | Virginia Beach city, VA | 442654 |
| 148 | Williamson County, TX | 442366 |
| 149 | East Baton Rouge Parish, LA | 441627 |
| 150 | Lucas County, OH | 439409 |
| 151 | Polk County, IA | 438783 |
| 152 | Knox County, TN | 436822 |
| 153 | York County, PA | 436749 |
| 154 | Jefferson Parish, LA | 434133 |
| 155 | Clark County, WA | 432388 |
| 156 | Seminole County, FL | 426382 |
| 157 | Santa Barbara County, CA | 425404 |
| 158 | Washoe County, NV | 424066 |
| 159 | Genesee County, MI | 422062 |
| 160 | Monterey County, CA | 420379 |
| 161 | Prince William County, VA | 419149 |
| 162 | Solano County, CA | 416325 |
| 163 | Mobile County, AL | 413126 |
| 164 | Cameron County, TX | 413116 |
| 165 | Berks County, PA | 413027 |
| 166 | Hillsborough County, NH | 402832 |
| 167 | Dakota County, MN | 401804 |
| 168 | Ada County, ID | 401352 |
| 169 | Waukesha County, WI | 390895 |
| 170 | Richland County, SC | 389333 |
| 171 | Pulaski County, AR | 387081 |
| 172 | Sarasota County, FL | 382298 |
| 173 | Clackamas County, OR | 379640 |
| 174 | Pinal County, AZ | 378114 |
| 175 | Stark County, OH | 374512 |
| 176 | Orange County, NY | 374171 |
| 177 | Butler County, OH | 370164 |
| 178 | Mercer County, NJ | 367407 |
| 179 | St. Charles County, MO | 365614 |
| 180 | Westmoreland County, PA | 364450 |
| 181 | Orleans Parish, LA | 360822 |
| 182 | Allen County, IN | 359013 |
| 183 | Charleston County, SC | 357461 |
| 184 | Placer County, CA | 356323 |
| 185 | Forsyth County, NC | 354545 |
| 186 | Lane County, OR | 354119 |
| 187 | Lehigh County, PA | 353317 |
| 188 | Washtenaw County, MI | 350072 |
| 189 | Nueces County, TX | 343278 |
| 190 | Hamilton County, TN | 341179 |
| 191 | Madison County, AL | 339623 |
| 192 | Anoka County, MN | 332921 |
| 193 | Marion County, FL | 332325 |
| 194 | Cumberland County, NC | 330625 |
| 195 | Collier County, FL | 327670 |
| 196 | Manatee County, FL | 327619 |
| 197 | Loudoun County, VA | 326357 |
| 198 | Somerset County, NJ | 326277 |
| 199 | Luzerne County, PA | 321073 |
| 200 | Chesterfield County, VA | 320344 |
Ranking of Counties By Population in 2011 for each US State
Use the following links to see the ranking of counties by population for each of the following US states.