Ranking of US Counties By Population in 2012
Updated on July 26, 2024.
Based on the US Census Vintage data estimates, in 2012, the Population for the United States was 313.88M. Among all US counties, Los Angeles County had the highest population (9.93M), followed by Cook County (5.24M), and Harris County (4.26M).
On the other hand, Loving County had the lowest population (86) followed by Kalawao County (89), and King County (269).
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 2012
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| Rank | County | Population |
|---|---|---|
| 1 | Los Angeles County, CA | 9931394 |
| 2 | Cook County, IL | 5239105 |
| 3 | Harris County, TX | 4262549 |
| 4 | Maricopa County, AZ | 3948165 |
| 5 | San Diego County, CA | 3175148 |
| 6 | Orange County, CA | 3078710 |
| 7 | Miami-Dade County, FL | 2576473 |
| 8 | Kings County, NY | 2568538 |
| 9 | Dallas County, TX | 2456296 |
| 10 | Queens County, NY | 2271920 |
| 11 | Riverside County, CA | 2260763 |
| 12 | San Bernardino County, CA | 2073088 |
| 13 | King County, WA | 2011708 |
| 14 | Clark County, NV | 1989644 |
| 15 | Tarrant County, TX | 1882950 |
| 16 | Santa Clara County, CA | 1837605 |
| 17 | Broward County, FL | 1814468 |
| 18 | Wayne County, MI | 1795797 |
| 19 | Bexar County, TX | 1788768 |
| 20 | New York County, NY | 1624573 |
| 21 | Alameda County, CA | 1553729 |
| 22 | Philadelphia County, PA | 1552087 |
| 23 | Middlesex County, MA | 1543163 |
| 24 | Suffolk County, NY | 1497017 |
| 25 | Sacramento County, CA | 1444819 |
| 26 | Bronx County, NY | 1411087 |
| 27 | Palm Beach County, FL | 1355149 |
| 28 | Nassau County, NY | 1349753 |
| 29 | Hillsborough County, FL | 1279861 |
| 30 | Cuyahoga County, OH | 1266271 |
| 31 | Allegheny County, PA | 1231129 |
| 32 | Oakland County, MI | 1223723 |
| 33 | Orange County, FL | 1202716 |
| 34 | Franklin County, OH | 1199257 |
| 35 | Hennepin County, MN | 1184545 |
| 36 | Fairfax County, VA | 1120654 |
| 37 | Travis County, TX | 1096918 |
| 38 | Contra Costa County, CA | 1077439 |
| 39 | Salt Lake County, UT | 1064140 |
| 40 | Montgomery County, MD | 1005310 |
| 41 | St. Louis County, MO | 1000975 |
| 42 | Pima County, AZ | 993231 |
| 43 | Honolulu County, HI | 978295 |
| 44 | Fulton County, GA | 973464 |
| 45 | Mecklenburg County, NC | 967418 |
| 46 | Westchester County, NY | 959731 |
| 47 | Milwaukee County, WI | 954672 |
| 48 | Wake County, NC | 952266 |
| 49 | Fresno County, CA | 944779 |
| 50 | Shelby County, TN | 939421 |
| 51 | Fairfield County, CT | 935293 |
| 52 | DuPage County, IL | 928719 |
| 53 | Pinellas County, FL | 921863 |
| 54 | Erie County, NY | 919998 |
| 55 | Marion County, IN | 919917 |
| 56 | Bergen County, NJ | 916299 |
| 57 | Hartford County, CT | 897795 |
| 58 | Prince George's County, MD | 882787 |
| 59 | Duval County, FL | 880349 |
| 60 | New Haven County, CT | 864732 |
| 61 | Kern County, CA | 854392 |
| 62 | Macomb County, MI | 849761 |
| 63 | Gwinnett County, GA | 836854 |
| 64 | Collin County, TX | 834839 |
| 65 | Ventura County, CA | 833287 |
| 66 | El Paso County, TX | 832118 |
| 67 | San Francisco County, CA | 828963 |
| 68 | Middlesex County, NJ | 819389 |
| 69 | Baltimore County, MD | 818218 |
| 70 | Pierce County, WA | 815772 |
| 71 | Montgomery County, PA | 808782 |
| 72 | Hidalgo County, TX | 807930 |
| 73 | Worcester County, MA | 807047 |
| 74 | Hamilton County, OH | 802564 |
| 75 | Essex County, NJ | 785092 |
| 76 | Multnomah County, OR | 760505 |
| 77 | Essex County, MA | 757409 |
| 78 | Jefferson County, KY | 751802 |
| 79 | Suffolk County, MA | 751371 |
| 80 | Monroe County, NY | 747468 |
| 81 | Oklahoma County, OK | 743477 |
| 82 | San Mateo County, CA | 739700 |
| 83 | Snohomish County, WA | 732239 |
| 84 | DeKalb County, GA | 710783 |
| 85 | Denton County, TX | 707027 |
| 86 | Cobb County, GA | 706517 |
| 87 | Lake County, IL | 702117 |
| 88 | San Joaquin County, CA | 699444 |
| 89 | Norfolk County, MA | 682984 |
| 90 | Will County, IL | 682459 |
| 91 | Jackson County, MO | 677570 |
| 92 | Bernalillo County, NM | 673725 |
| 93 | Jefferson County, AL | 658183 |
| 94 | Hudson County, NJ | 652373 |
| 95 | Davidson County, TN | 649619 |
| 96 | El Paso County, CO | 645900 |
| 97 | Lee County, FL | 644451 |
| 98 | Denver County, CO | 634965 |
| 99 | Providence County, RI | 631397 |
| 100 | Monmouth County, NJ | 627682 |
| 101 | Bucks County, PA | 625603 |
| 102 | Fort Bend County, TX | 624737 |
| 103 | Baltimore city, MD | 623035 |
| 104 | Kent County, MI | 615871 |
| 105 | Polk County, FL | 615581 |
| 106 | Tulsa County, OK | 615376 |
| 107 | Arapahoe County, CO | 597052 |
| 108 | Ocean County, NJ | 580013 |
| 109 | Delaware County, PA | 560865 |
| 110 | Johnson County, KS | 559647 |
| 111 | Bristol County, MA | 551204 |
| 112 | Anne Arundel County, MD | 550476 |
| 113 | Washington County, OR | 548651 |
| 114 | Brevard County, FL | 547119 |
| 115 | Jefferson County, CO | 546736 |
| 116 | New Castle County, DE | 545053 |
| 117 | Union County, NJ | 542977 |
| 118 | Summit County, OH | 540806 |
| 119 | Utah County, UT | 539970 |
| 120 | Montgomery County, OH | 534464 |
| 121 | Douglas County, NE | 530899 |
| 122 | Lancaster County, PA | 526949 |
| 123 | Ramsey County, MN | 521091 |
| 124 | Kane County, IL | 520615 |
| 125 | Stanislaus County, CA | 520336 |
| 126 | Camden County, NJ | 511636 |
| 127 | Chester County, PA | 506049 |
| 128 | Sedgwick County, KS | 504171 |
| 129 | Passaic County, NJ | 503531 |
| 130 | Dane County, WI | 503087 |
| 131 | Guilford County, NC | 500618 |
| 132 | Plymouth County, MA | 499545 |
| 133 | Volusia County, FL | 496711 |
| 134 | Morris County, NJ | 495623 |
| 135 | Lake County, IN | 493511 |
| 136 | Sonoma County, CA | 489784 |
| 137 | Montgomery County, TX | 484627 |
| 138 | Spokane County, WA | 475605 |
| 139 | Richmond County, NY | 470597 |
| 140 | Pasco County, FL | 469755 |
| 141 | Onondaga County, NY | 467138 |
| 142 | Hampden County, MA | 467009 |
| 143 | Greenville County, SC | 466172 |
| 144 | Adams County, CO | 460568 |
| 145 | Williamson County, TX | 456144 |
| 146 | Burlington County, NJ | 450667 |
| 147 | Tulare County, CA | 449625 |
| 148 | Virginia Beach city, VA | 445189 |
| 149 | Polk County, IA | 444753 |
| 150 | East Baton Rouge Parish, LA | 443075 |
| 151 | Knox County, TN | 440883 |
| 152 | York County, PA | 437551 |
| 153 | Lucas County, OH | 436846 |
| 154 | Clark County, WA | 436532 |
| 155 | Jefferson Parish, LA | 434049 |
| 156 | Seminole County, FL | 430626 |
| 157 | Prince William County, VA | 429716 |
| 158 | Santa Barbara County, CA | 429635 |
| 159 | Washoe County, NV | 427490 |
| 160 | Monterey County, CA | 424222 |
| 161 | Solano County, CA | 419645 |
| 162 | Genesee County, MI | 418243 |
| 163 | Cameron County, TX | 415729 |
| 164 | Mobile County, AL | 413893 |
| 165 | Berks County, PA | 413552 |
| 166 | Ada County, ID | 409032 |
| 167 | Dakota County, MN | 404669 |
| 168 | Hillsborough County, NH | 404439 |
| 169 | Richland County, SC | 393205 |
| 170 | Waukesha County, WI | 392893 |
| 171 | Pulaski County, AR | 389392 |
| 172 | Sarasota County, FL | 386585 |
| 173 | Clackamas County, OR | 383159 |
| 174 | Pinal County, AZ | 382371 |
| 175 | Stark County, OH | 374914 |
| 176 | Orange County, NY | 373795 |
| 177 | Butler County, OH | 370628 |
| 178 | Orleans Parish, LA | 369947 |
| 179 | St. Charles County, MO | 369175 |
| 180 | Mercer County, NJ | 368628 |
| 181 | Charleston County, SC | 364913 |
| 182 | Westmoreland County, PA | 362825 |
| 183 | Allen County, IN | 360946 |
| 184 | Placer County, CA | 360269 |
| 185 | Forsyth County, NC | 357644 |
| 186 | Lane County, OR | 355217 |
| 187 | Lehigh County, PA | 354673 |
| 188 | Washtenaw County, MI | 352685 |
| 189 | Nueces County, TX | 347966 |
| 190 | Hamilton County, TN | 345828 |
| 191 | Madison County, AL | 342823 |
| 192 | Loudoun County, VA | 337902 |
| 193 | Anoka County, MN | 336119 |
| 194 | Manatee County, FL | 333965 |
| 195 | Marion County, FL | 333945 |
| 196 | Collier County, FL | 332330 |
| 197 | Cumberland County, NC | 330161 |
| 198 | Somerset County, NJ | 327462 |
| 199 | Bell County, TX | 325138 |
| 200 | Brazoria County, TX | 324295 |
Ranking of Counties By Population in 2012 for each US State
Use the following links to see the ranking of counties by population for each of the following US states.