Ranking of US Counties By Population in 2017
Updated on July 26, 2024.
Based on the US Census Vintage data estimates, in 2017, the Population for the United States was 325.12M. Among all US counties, Los Angeles County had the highest population (10.09M), followed by Cook County (5.20M), and Harris County (4.66M).
On the other hand, Kalawao County had the lowest population (87) followed by Loving County (133), and King County (287).
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 2017
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| Rank | County | Population |
|---|---|---|
| 1 | Los Angeles County, CA | 10092365 |
| 2 | Cook County, IL | 5199582 |
| 3 | Harris County, TX | 4655798 |
| 4 | Maricopa County, AZ | 4329227 |
| 5 | San Diego County, CA | 3319019 |
| 6 | Orange County, CA | 3174159 |
| 7 | Miami-Dade County, FL | 2709126 |
| 8 | Dallas County, TX | 2620425 |
| 9 | Kings County, NY | 2594357 |
| 10 | Riverside County, CA | 2413058 |
| 11 | Queens County, NY | 2295226 |
| 12 | King County, WA | 2205001 |
| 13 | Clark County, NV | 2183273 |
| 14 | San Bernardino County, CA | 2149847 |
| 15 | Tarrant County, TX | 2056197 |
| 16 | Bexar County, TX | 1956394 |
| 17 | Broward County, FL | 1935945 |
| 18 | Santa Clara County, CA | 1932251 |
| 19 | Wayne County, MI | 1757874 |
| 20 | Alameda County, CA | 1659824 |
| 21 | New York County, NY | 1632337 |
| 22 | Middlesex County, MA | 1604762 |
| 23 | Philadelphia County, PA | 1581699 |
| 24 | Sacramento County, CA | 1527984 |
| 25 | Suffolk County, NY | 1483862 |
| 26 | Palm Beach County, FL | 1470583 |
| 27 | Bronx County, NY | 1439956 |
| 28 | Hillsborough County, FL | 1428960 |
| 29 | Orange County, FL | 1357720 |
| 30 | Nassau County, NY | 1357260 |
| 31 | Franklin County, OH | 1296374 |
| 32 | Oakland County, MI | 1256478 |
| 33 | Hennepin County, MN | 1248707 |
| 34 | Cuyahoga County, OH | 1247808 |
| 35 | Travis County, TX | 1227373 |
| 36 | Allegheny County, PA | 1220423 |
| 37 | Fairfax County, VA | 1149346 |
| 38 | Contra Costa County, CA | 1145623 |
| 39 | Salt Lake County, UT | 1137273 |
| 40 | Mecklenburg County, NC | 1079656 |
| 41 | Wake County, NC | 1072463 |
| 42 | Montgomery County, MD | 1047239 |
| 43 | Fulton County, GA | 1039996 |
| 44 | Pima County, AZ | 1027115 |
| 45 | St. Louis County, MO | 997116 |
| 46 | Honolulu County, HI | 986973 |
| 47 | Fresno County, CA | 984726 |
| 48 | Collin County, TX | 972724 |
| 49 | Westchester County, NY | 970033 |
| 50 | Pinellas County, FL | 968886 |
| 51 | Marion County, IN | 951247 |
| 52 | Milwaukee County, WI | 950843 |
| 53 | Fairfield County, CT | 944107 |
| 54 | Duval County, FL | 939167 |
| 55 | Shelby County, TN | 936012 |
| 56 | Bergen County, NJ | 932449 |
| 57 | DuPage County, IL | 930569 |
| 58 | Erie County, NY | 919378 |
| 59 | Gwinnett County, GA | 918681 |
| 60 | Prince George's County, MD | 910946 |
| 61 | Hartford County, CT | 893141 |
| 62 | Kern County, CA | 887316 |
| 63 | Pierce County, WA | 880745 |
| 64 | San Francisco County, CA | 877471 |
| 65 | Macomb County, MI | 870867 |
| 66 | New Haven County, CT | 857845 |
| 67 | Hidalgo County, TX | 854739 |
| 68 | Ventura County, CA | 848264 |
| 69 | El Paso County, TX | 836087 |
| 70 | Denton County, TX | 834649 |
| 71 | Baltimore County, MD | 828956 |
| 72 | Middlesex County, NJ | 826972 |
| 73 | Worcester County, MA | 825646 |
| 74 | Montgomery County, PA | 824533 |
| 75 | Hamilton County, OH | 814693 |
| 76 | Multnomah County, OR | 808192 |
| 77 | Snohomish County, WA | 803061 |
| 78 | Suffolk County, MA | 801269 |
| 79 | Essex County, NJ | 797222 |
| 80 | Oklahoma County, OK | 786126 |
| 81 | Essex County, MA | 785156 |
| 82 | Jefferson County, KY | 770383 |
| 83 | San Mateo County, CA | 768658 |
| 84 | Fort Bend County, TX | 768258 |
| 85 | Cobb County, GA | 753361 |
| 86 | DeKalb County, GA | 751680 |
| 87 | Monroe County, NY | 743528 |
| 88 | San Joaquin County, CA | 743286 |
| 89 | Lee County, FL | 741188 |
| 90 | Denver County, CO | 704869 |
| 91 | Lake County, IL | 702825 |
| 92 | Norfolk County, MA | 701046 |
| 93 | El Paso County, CO | 700838 |
| 94 | Jackson County, MO | 698768 |
| 95 | Will County, IL | 690356 |
| 96 | Davidson County, TN | 687808 |
| 97 | Polk County, FL | 685790 |
| 98 | Bernalillo County, NM | 678280 |
| 99 | Hudson County, NJ | 672858 |
| 100 | Jefferson County, AL | 659892 |
| 101 | Kent County, MI | 649722 |
| 102 | Tulsa County, OK | 646874 |
| 103 | Arapahoe County, CO | 645080 |
| 104 | Providence County, RI | 634525 |
| 105 | Bucks County, PA | 627302 |
| 106 | Monmouth County, NJ | 622122 |
| 107 | Baltimore city, MD | 610853 |
| 108 | Utah County, UT | 607612 |
| 109 | Ocean County, NJ | 595564 |
| 110 | Johnson County, KS | 592055 |
| 111 | Washington County, OR | 591969 |
| 112 | Brevard County, FL | 588165 |
| 113 | Jefferson County, CO | 576041 |
| 114 | Montgomery County, TX | 571542 |
| 115 | Anne Arundel County, MD | 571359 |
| 116 | Delaware County, PA | 564015 |
| 117 | Bristol County, MA | 561449 |
| 118 | Douglas County, NE | 561099 |
| 119 | New Castle County, DE | 556491 |
| 120 | Union County, NJ | 554695 |
| 121 | Williamson County, TX | 546837 |
| 122 | Ramsey County, MN | 544919 |
| 123 | Stanislaus County, CA | 544494 |
| 124 | Summit County, OH | 541695 |
| 125 | Lancaster County, PA | 541352 |
| 126 | Volusia County, FL | 538755 |
| 127 | Dane County, WI | 537901 |
| 128 | Kane County, IL | 532101 |
| 129 | Montgomery County, OH | 531964 |
| 130 | Guilford County, NC | 528622 |
| 131 | Pasco County, FL | 525533 |
| 132 | Chester County, PA | 519057 |
| 133 | Plymouth County, MA | 515984 |
| 134 | Sedgwick County, KS | 513392 |
| 135 | Greenville County, SC | 507484 |
| 136 | Camden County, NJ | 506488 |
| 137 | Spokane County, WA | 505708 |
| 138 | Passaic County, NJ | 504403 |
| 139 | Adams County, CO | 503717 |
| 140 | Sonoma County, CA | 502203 |
| 141 | Morris County, NJ | 493994 |
| 142 | Lake County, IN | 484834 |
| 143 | Polk County, IA | 480962 |
| 144 | Richmond County, NY | 475819 |
| 145 | Clark County, WA | 475238 |
| 146 | Hampden County, MA | 467552 |
| 147 | Prince William County, VA | 463400 |
| 148 | Seminole County, FL | 463052 |
| 149 | Tulare County, CA | 462072 |
| 150 | Knox County, TN | 461977 |
| 151 | Onondaga County, NY | 461843 |
| 152 | Ada County, ID | 456994 |
| 153 | Washoe County, NV | 456864 |
| 154 | Virginia Beach city, VA | 450417 |
| 155 | Burlington County, NJ | 446229 |
| 156 | York County, PA | 445924 |
| 157 | Santa Barbara County, CA | 444998 |
| 158 | East Baton Rouge Parish, LA | 444848 |
| 159 | Solano County, CA | 443554 |
| 160 | Jefferson Parish, LA | 436571 |
| 161 | Monterey County, CA | 433803 |
| 162 | Pinal County, AZ | 431490 |
| 163 | Lucas County, OH | 431312 |
| 164 | Dakota County, MN | 421840 |
| 165 | Cameron County, TX | 421506 |
| 166 | Sarasota County, FL | 420073 |
| 167 | Berks County, PA | 417601 |
| 168 | Mobile County, AL | 414209 |
| 169 | Hillsborough County, NH | 413545 |
| 170 | Clackamas County, OR | 412982 |
| 171 | Richland County, SC | 412492 |
| 172 | Genesee County, MI | 407673 |
| 173 | Charleston County, SC | 402725 |
| 174 | Waukesha County, WI | 401099 |
| 175 | Loudoun County, VA | 397192 |
| 176 | St. Charles County, MO | 395153 |
| 177 | Pulaski County, AR | 393585 |
| 178 | Orleans Parish, LA | 391819 |
| 179 | Manatee County, FL | 385458 |
| 180 | Placer County, CA | 385348 |
| 181 | Butler County, OH | 380751 |
| 182 | Orange County, NY | 379896 |
| 183 | Forsyth County, NC | 375901 |
| 184 | Lane County, OR | 375689 |
| 185 | Collier County, FL | 373286 |
| 186 | Stark County, OH | 372120 |
| 187 | Allen County, IN | 371803 |
| 188 | Washtenaw County, MI | 369703 |
| 189 | Mercer County, NJ | 368489 |
| 190 | Lehigh County, PA | 365772 |
| 191 | Brazoria County, TX | 362261 |
| 192 | Madison County, AL | 362061 |
| 193 | Hamilton County, TN | 361362 |
| 194 | Nueces County, TX | 361328 |
| 195 | Marion County, FL | 353953 |
| 196 | Osceola County, FL | 353306 |
| 197 | Westmoreland County, PA | 352152 |
| 198 | Anoka County, MN | 350598 |
| 199 | Bell County, TX | 347683 |
| 200 | Davis County, UT | 346858 |
Ranking of Counties By Population in 2017 for each US State
Use the following links to see the ranking of counties by population for each of the following US states.