Where Local Advertising Is Most Crowded: The Ad Competition Index
Each county gets a 0 to 100 score for how many ad-heavy local businesses (lawyers, dentists, contractors, agents and more) compete for its residents, compared with every U.S. county of 20,000 or more people. It is built only from public Census data, and the method is open.
All markets
400 Markets, Ranked
| Rank | County | State | Index | Population | Ad-business change since 2017 |
|---|---|---|---|---|---|
| 1 | Washington County | UT | 90 | 202,452 | +32.5% |
| 2 | Suffolk County | NY | 88.9 | 1,523,170 | +4.4% |
| 3 | Sarasota County | FL | 88.7 | 469,013 | +13% |
| 4 | Deschutes County | OR | 88.5 | 208,513 | +15.8% |
| 5 | DuPage County | IL | 87.9 | 921,213 | +1.5% |
| 6 | Collier County | FL | 87.6 | 404,310 | +22.1% |
| 7 | Nassau County | NY | 87.6 | 1,381,715 | -1.8% |
| 8 | Bucks County | PA | 87.6 | 645,984 | +4.1% |
| 9 | New Hanover County | NC | 87.4 | 238,852 | +13.6% |
| 10 | Palm Beach County | FL | 87.2 | 1,533,801 | +14.2% |
| 11 | Kootenai County | ID | 87.2 | 185,010 | +38.7% |
| 12 | Marin County | CA | 86.8 | 254,407 | +0.1% |
| 13 | Rockland County | NY | 86.3 | 340,807 | +8.6% |
| 14 | Jefferson County | CO | 85.8 | 576,366 | +6.3% |
| 15 | Larimer County | CO | 85.7 | 370,771 | +13% |
| 16 | Morris County | NJ | 84.8 | 514,423 | -2% |
| 17 | Cumberland County | ME | 84.4 | 310,230 | +10.9% |
| 18 | Waukesha County | WI | 84.2 | 412,591 | +8.5% |
| 19 | Placer County | CA | 83.9 | 423,561 | +12.8% |
| 20 | Pinellas County | FL | 83.7 | 961,596 | +11.7% |
| 21 | Ada County | ID | 83.7 | 524,673 | +29.3% |
| 22 | Westchester County | NY | 83.6 | 990,817 | -1.6% |
| 23 | Seminole County | FL | 82.9 | 484,271 | +10.1% |
| 24 | Barnstable County | MA | 82.8 | 231,735 | +11.2% |
| 25 | Montgomery County | PA | 82.7 | 868,742 | +2.1% |
| 26 | Sonoma County | CA | 82.5 | 481,812 | +6.2% |
| 27 | Broward County | FL | 82.3 | 1,962,531 | +10.4% |
| 28 | Arapahoe County | CO | 82 | 656,061 | +8.8% |
| 29 | San Luis Obispo County | CA | 81.8 | 281,639 | +9.4% |
| 30 | Clackamas County | OR | 81.1 | 423,173 | +5.4% |
| 31 | Carroll County | MD | 80.5 | 176,639 | +3.3% |
| 32 | Monmouth County | NJ | 80 | 642,799 | -1.6% |
| 33 | Norfolk County | MA | 79.9 | 727,473 | +0.2% |
| 34 | Lake County | IL | 79.7 | 708,760 | +1.1% |
| 35 | Ventura County | CA | 79.3 | 829,590 | +4.7% |
| 36 | Buncombe County | NC | 79.2 | 275,901 | +25.7% |
| 37 | Bergen County | NJ | 78.9 | 957,736 | -5.3% |
| 38 | Boulder County | CO | 78.5 | 326,831 | +2.3% |
| 39 | Lee County | FL | 78.5 | 834,573 | +25.7% |
| 40 | McHenry County | IL | 78.3 | 312,800 | +4.6% |
| 41 | Santa Barbara County | CA | 77.9 | 441,257 | +2.7% |
| 42 | Gwinnett County | GA | 77.9 | 983,526 | +16.3% |
| 43 | Charleston County | SC | 77.8 | 424,367 | +9.4% |
| 44 | Chester County | PA | 77.3 | 549,784 | +3.9% |
| 45 | Beaufort County | SC | 76.9 | 198,979 | +17.2% |
| 46 | Orange County | CA | 76.6 | 3,135,755 | +9.2% |
| 47 | Salt Lake County | UT | 76.5 | 1,185,813 | +7.3% |
| 48 | Yavapai County | AZ | 76.4 | 249,081 | +12.9% |
| 49 | Kane County | IL | 76.2 | 514,982 | +4% |
| 50 | Forsyth County | GA | 76.1 | 272,887 | +18.1% |
| 51 | Lancaster County | NE | 76 | 326,716 | +5.6% |
| 52 | El Dorado County | CA | 75.8 | 192,215 | +12.5% |
| 53 | Rockingham County | NH | 75.7 | 320,689 | +4.4% |
| 54 | Jackson County | OR | 75.5 | 220,768 | +4.2% |
| 55 | Shasta County | CA | 75 | 180,366 | +3.3% |
| 56 | Douglas County | NE | 75 | 589,540 | +5.3% |
| 57 | Oklahoma County | OK | 75 | 808,866 | +1.6% |
| 58 | San Mateo County | CA | 74.8 | 726,353 | +2.8% |
| 59 | Miami-Dade County | FL | 74.8 | 2,686,867 | +12.9% |
| 60 | Jefferson Parish | LA | 74.8 | 421,777 | +1.3% |
| 61 | Santa Cruz County | CA | 74.4 | 261,547 | +0.3% |
| 62 | Johnson County | KS | 74.4 | 622,237 | +7.6% |
| 63 | Cass County | ND | 74.4 | 196,362 | +8.4% |
| 64 | Anchorage | AK | 73.8 | 286,075 | -1.3% |
| 65 | Lafayette Parish | LA | 73.8 | 249,750 | +4.4% |
| 66 | Washoe County | NV | 73.4 | 498,022 | +10.8% |
| 67 | Douglas County | CO | 73.1 | 383,906 | +14.9% |
| 68 | Hillsborough County | FL | 73 | 1,535,564 | +17.5% |
| 69 | Spokane County | WA | 72.9 | 551,455 | +13.7% |
| 70 | Hillsborough County | NH | 72.8 | 427,354 | +3.7% |
| 71 | Iredell County | NC | 72.8 | 199,710 | +16.6% |
| 72 | San Diego County | CA | 72.4 | 3,269,973 | +10.5% |
| 73 | Cobb County | GA | 72.4 | 776,743 | +10.4% |
| 74 | Whatcom County | WA | 72.4 | 231,919 | +10.4% |
| 75 | Fairfield County | CT | 72.3 | 959,768 | +0.7% |
| 76 | Tulsa County | OK | 72.3 | 682,868 | +1.3% |
| 77 | Charlotte County | FL | 72.2 | 206,134 | +16.2% |
| 78 | Hall County | GA | 72.2 | 217,267 | +16.3% |
| 79 | Orange County | FL | 72.1 | 1,471,416 | +22.6% |
| 80 | St. Tammany Parish | LA | 72.1 | 275,583 | +10.6% |
| 81 | Delaware County | PA | 72.1 | 576,720 | +1.2% |
| 82 | St. Louis County | MO | 72 | 987,059 | -2.4% |
| 83 | Lane County | OR | 71.9 | 381,181 | +4.4% |
| 84 | Butte County | CA | 71.8 | 207,172 | -4.6% |
| 85 | Duval County | FL | 71.7 | 1,030,822 | +11.1% |
| 86 | Okaloosa County | FL | 71.5 | 218,464 | +17.8% |
| 87 | Oakland County | MI | 71.5 | 1,270,426 | -0.7% |
| 88 | Volusia County | FL | 71.4 | 590,357 | +11.6% |
| 89 | El Paso County | CO | 71.3 | 744,215 | +9.9% |
| 90 | Allegheny County | PA | 71.2 | 1,224,825 | -2% |
| 91 | Greene County | MO | 71.1 | 304,611 | +8.8% |
| 92 | Dutchess County | NY | 71.1 | 297,150 | -2% |
| 93 | Cherokee County | GA | 71 | 286,602 | +21.5% |
| 94 | Baltimore County | MD | 71 | 844,703 | -3.7% |
| 95 | Plymouth County | MA | 70.9 | 535,308 | +6.3% |
| 96 | Brevard County | FL | 70.8 | 643,979 | +8.2% |
| 97 | Middlesex County | MA | 70.7 | 1,623,952 | -0.7% |
| 98 | Ulster County | NY | 70.7 | 182,333 | +7% |
| 99 | Weber County | UT | 70.6 | 271,926 | +17.1% |
| 100 | Litchfield County | CT | 70.4 | 185,000 | +4.5% |
| 101 | Union County | NC | 70.3 | 256,452 | +24.8% |
| 102 | Orange County | NY | 70.2 | 407,470 | +7.8% |
| 103 | Mecklenburg County | NC | 69.6 | 1,163,701 | +18.1% |
| 104 | Wake County | NC | 69.6 | 1,190,275 | +12.7% |
| 105 | Outagamie County | WI | 69.6 | 193,234 | +5.2% |
| 106 | Lubbock County | TX | 69.5 | 320,940 | +4.8% |
| 107 | Bay County | FL | 69.4 | 190,769 | +15.8% |
| 108 | Comal County | TX | 69.4 | 193,928 | +45.2% |
| 109 | Pulaski County | AR | 69.1 | 400,009 | -1.4% |
| 110 | York County | ME | 69.1 | 218,586 | +7.4% |
| 111 | Marion County | OR | 69.1 | 346,741 | +16.2% |
| 112 | Albany County | NY | 69 | 316,659 | -2% |
| 113 | Virginia Beach | VA | 69 | 453,649 | +5.4% |
| 114 | Baldwin County | AL | 68.6 | 253,507 | +28.9% |
| 115 | Polk County | IA | 68.3 | 505,255 | +8.5% |
| 116 | Livingston County | MI | 68.1 | 196,757 | +8.1% |
| 117 | Somerset County | NJ | 68 | 348,842 | -4.8% |
| 118 | Smith County | TX | 67.9 | 245,209 | +6% |
| 119 | Essex County | MA | 67.8 | 810,089 | +6.3% |
| 120 | Manatee County | FL | 67.7 | 441,095 | +23.6% |
| 121 | Frederick County | MD | 67.7 | 293,391 | +1.1% |
| 122 | Union County | NJ | 67.7 | 572,726 | -1.9% |
| 123 | Providence County | RI | 67.7 | 660,615 | +6.7% |
| 124 | Henrico County | VA | 67.7 | 334,760 | -1.5% |
| 125 | Howard County | MD | 67.6 | 336,001 | 0% |
| 126 | Anne Arundel County | MD | 67.5 | 594,582 | -0.8% |
| 127 | Hamilton County | IN | 67.4 | 371,645 | +16.5% |
| 128 | Williamson County | TN | 67.3 | 264,460 | +20.6% |
| 129 | Washington County | OR | 67.2 | 598,865 | +0.2% |
| 130 | Snohomish County | WA | 67.2 | 844,761 | +12% |
| 131 | Bernalillo County | NM | 67.1 | 671,586 | +2.9% |
| 132 | Will County | IL | 67 | 700,728 | +8.8% |
| 133 | Denver County | CO | 66.9 | 716,577 | +7.7% |
| 134 | Leon County | FL | 66.8 | 296,913 | +4.1% |
| 135 | Montgomery County | MD | 66.8 | 1,058,474 | -1.7% |
| 136 | East Baton Rouge Parish | LA | 66.7 | 448,467 | +2.2% |
| 137 | Harford County | MD | 66.7 | 264,644 | +0.2% |
| 138 | Lake County | OH | 66.6 | 231,640 | -2.3% |
| 139 | Hartford County | CT | 66.5 | 896,854 | +0.4% |
| 140 | Cook County | IL | 66.4 | 5,087,072 | -1.3% |
| 141 | Caddo Parish | LA | 66.4 | 226,386 | -5% |
| 142 | Guilford County | NC | 66.4 | 549,866 | +11.1% |
| 143 | King County | WA | 66.3 | 2,271,380 | +5.2% |
| 144 | Fayette County | KY | 66.2 | 320,154 | +3.9% |
| 145 | Jefferson County | KY | 66.2 | 772,144 | +3.6% |
| 146 | Hennepin County | MN | 66.2 | 1,258,713 | +1.2% |
| 147 | Passaic County | NJ | 66.2 | 513,395 | -4.7% |
| 148 | Davis County | UT | 66.1 | 373,207 | +14.5% |
| 149 | Clark County | WA | 66.1 | 521,150 | +17.5% |
| 150 | Shelby County | AL | 65.9 | 233,000 | +13.7% |
| 151 | Vanderburgh County | IN | 65.9 | 179,810 | +2.6% |
| 152 | Travis County | TX | 65.9 | 1,334,961 | +16.7% |
| 153 | Contra Costa County | CA | 65.7 | 1,155,025 | +9.9% |
| 154 | Westmoreland County | PA | 65.7 | 351,163 | -0.5% |
| 155 | Greenville County | SC | 65.6 | 558,036 | +16.2% |
| 156 | Cleveland County | OK | 65.5 | 301,193 | +10% |
| 157 | Minnehaha County | SD | 65.5 | 206,930 | +15.7% |
| 158 | Medina County | OH | 65.4 | 184,042 | +3.7% |
| 159 | Middlesex County | CT | 65.2 | 164,759 | +5% |
| 160 | Maricopa County | AZ | 65.1 | 4,585,871 | +15.9% |
| 161 | Los Angeles County | CA | 65.1 | 9,663,345 | +7.9% |
| 162 | Boone County | MO | 65.1 | 189,463 | -1.5% |
| 163 | Washington County | PA | 64.9 | 210,232 | +1.7% |
| 164 | Lexington County | SC | 64.9 | 309,528 | +18.4% |
| 165 | Utah County | UT | 64.8 | 719,174 | +24.2% |
| 166 | Canyon County | ID | 64.6 | 257,674 | +63.8% |
| 167 | Butler County | PA | 64.6 | 198,413 | +6.7% |
| 168 | Washington County | AR | 64.5 | 261,549 | +14.8% |
| 169 | Kent County | MI | 64.4 | 661,354 | +6.7% |
| 170 | St. Johns County | FL | 64.3 | 320,110 | +39.8% |
| 171 | Santa Clara County | CA | 64 | 1,877,592 | +5.2% |
| 172 | Bristol County | MA | 63.9 | 581,841 | +4.7% |
| 173 | Worcester County | MA | 63.7 | 866,866 | +7.7% |
| 174 | Jefferson County | AL | 63.5 | 662,895 | +3.6% |
| 175 | New Castle County | DE | 63.5 | 578,592 | +1.5% |
| 176 | Multnomah County | OR | 63.5 | 789,698 | -6.1% |
| 177 | Peoria County | IL | 63.2 | 177,513 | -1.3% |
| 178 | Winnebago County | IL | 63 | 280,922 | +2.1% |
| 179 | Washington County | MN | 63 | 278,936 | +11.7% |
| 180 | Lackawanna County | PA | 63 | 216,123 | +2.8% |
| 181 | San Francisco County | CA | 62.8 | 808,988 | -3.7% |
| 182 | Allen County | IN | 62.8 | 394,545 | +6.3% |
| 183 | Dallas County | TX | 62.6 | 2,606,358 | +2.7% |
| 184 | Chatham County | GA | 62.5 | 303,655 | +21.1% |
| 185 | New Haven County | CT | 62.3 | 863,700 | -0.8% |
| 186 | Ocean County | NJ | 62.2 | 659,197 | +5.9% |
| 187 | Kitsap County | WA | 62.1 | 277,658 | +9.4% |
| 188 | Benton County | WA | 61.8 | 215,219 | +11.9% |
| 189 | Summit County | OH | 61.7 | 535,733 | +1.7% |
| 190 | Knox County | TN | 61.7 | 500,669 | +9.1% |
| 191 | Midland County | TX | 61.7 | 177,108 | +8.8% |
| 192 | Onondaga County | NY | 61.4 | 467,873 | -6.3% |
| 193 | Lancaster County | PA | 61.3 | 558,589 | +8.3% |
| 194 | Scott County | IA | 61.2 | 174,270 | -2.8% |
| 195 | Linn County | IA | 61.1 | 228,972 | +7.6% |
| 196 | Anoka County | MN | 61.1 | 372,441 | +8.1% |
| 197 | Clay County | MO | 61 | 259,772 | +8.5% |
| 198 | Escambia County | FL | 60.9 | 326,928 | +18.7% |
| 199 | Mercer County | NJ | 60.9 | 381,671 | -2.6% |
| 200 | Alachua County | FL | 60.8 | 285,994 | +11.4% |
| 201 | Sedgwick County | KS | 60.8 | 528,469 | +5.1% |
| 202 | Forsyth County | NC | 60.8 | 392,921 | +7.5% |
| 203 | Porter County | IN | 60.7 | 175,335 | +1.5% |
| 204 | Jackson County | MO | 60.7 | 718,560 | +0.9% |
| 205 | Monterey County | CA | 60.6 | 430,723 | +0.8% |
| 206 | Chesapeake | VA | 60.5 | 253,886 | +7.9% |
| 207 | Sangamon County | IL | 60.4 | 193,491 | -3.2% |
| 208 | Horry County | SC | 60.3 | 397,478 | +18.5% |
| 209 | St. Charles County | MO | 60.2 | 416,659 | +8.7% |
| 210 | Madison County | IL | 60.1 | 262,752 | -3.2% |
| 211 | Atlantic County | NJ | 60.1 | 275,213 | -3.7% |
| 212 | Delaware County | OH | 60.1 | 231,636 | +24% |
| 213 | Erie County | NY | 60 | 946,147 | -3.5% |
| 214 | Chesterfield County | VA | 59.8 | 383,876 | +14.2% |
| 215 | Weld County | CO | 59.6 | 359,442 | +24.6% |
| 216 | Fulton County | GA | 59.6 | 1,079,105 | +10.9% |
| 217 | Davidson County | TN | 59.6 | 712,334 | +8.7% |
| 218 | Marion County | FL | 59.5 | 409,959 | +13% |
| 219 | Burlington County | NJ | 59.3 | 469,167 | -1.3% |
| 220 | Lake County | FL | 59.2 | 424,462 | +17.7% |
| 221 | Cuyahoga County | OH | 59.1 | 1,233,088 | -4.4% |
| 222 | Pierce County | WA | 59.1 | 928,696 | +13.9% |
| 223 | Benton County | AR | 58.9 | 311,013 | +36.6% |
| 224 | Fairfax County | VA | 58.9 | 1,141,878 | +2.6% |
| 225 | Pima County | AZ | 58.8 | 1,063,162 | +7.6% |
| 226 | Macomb County | MI | 58.8 | 875,101 | +5.6% |
| 227 | Sarpy County | NE | 58.7 | 199,886 | +12.2% |
| 228 | Thurston County | WA | 58.6 | 299,003 | +8.2% |
| 229 | St. Louis County | MN | 58.5 | 200,514 | +5% |
| 230 | Dakota County | MN | 58.4 | 447,440 | +8.3% |
| 231 | Saratoga County | NY | 58.4 | 238,711 | +0.9% |
| 232 | Collin County | TX | 58.4 | 1,195,359 | +21.2% |
| 233 | Monroe County | NY | 58.3 | 748,482 | -2.8% |
| 234 | Stark County | OH | 58.3 | 372,716 | -4.1% |
| 235 | Hamilton County | OH | 57.9 | 827,058 | -1.8% |
| 236 | Sacramento County | CA | 57.6 | 1,584,288 | +10.2% |
| 237 | Marion County | IN | 57.6 | 968,460 | -1.6% |
| 238 | Hamilton County | TN | 57.4 | 379,864 | +5.9% |
| 239 | Tarrant County | TX | 57.4 | 2,182,947 | +10.9% |
| 240 | Camden County | NJ | 57.3 | 527,196 | -4.9% |
| 241 | Williamson County | TX | 57.3 | 697,191 | +34.8% |
| 242 | Cabarrus County | NC | 57.2 | 240,016 | +17.7% |
| 243 | Adams County | CO | 56.9 | 533,365 | +16.5% |
| 244 | Gloucester County | NJ | 56.9 | 308,423 | +4.4% |
| 245 | Cumberland County | PA | 56.9 | 270,738 | +10.3% |
| 246 | Nueces County | TX | 56.9 | 352,289 | -1.4% |
| 247 | St. Lucie County | FL | 56.8 | 373,586 | +21.8% |
| 248 | Niagara County | NY | 56.7 | 209,457 | +1.3% |
| 249 | Clay County | FL | 56.6 | 232,439 | +9.2% |
| 250 | Middlesex County | NJ | 56.5 | 863,623 | -3.6% |
| 251 | Lake County | IN | 56.4 | 500,598 | -0.5% |
| 252 | Pitt County | NC | 56.4 | 175,119 | +3.8% |
| 253 | Mohave County | AZ | 56.3 | 223,682 | +16.6% |
| 254 | New London County | CT | 56.3 | 268,805 | +0.4% |
| 255 | Shawnee County | KS | 56.2 | 177,746 | -0.9% |
| 256 | Loudoun County | VA | 55.9 | 436,347 | +13.1% |
| 257 | Manhattan | NY | 55.6 | 1,597,451 | -9.6% |
| 258 | Alameda County | CA | 55.5 | 1,622,188 | +3% |
| 259 | Canadian County | OK | 55.5 | 175,829 | +18.1% |
| 260 | Montgomery County | TX | 55.5 | 711,354 | +29.6% |
| 261 | Parker County | TX | 55.4 | 173,494 | +31.5% |
| 262 | Dane County | WI | 55.4 | 575,347 | +6.1% |
| 263 | Staten Island | NY | 55.2 | 490,687 | +1.5% |
| 264 | Lehigh County | PA | 54.9 | 377,754 | -9.1% |
| 265 | Luzerne County | PA | 54.4 | 327,388 | +2.6% |
| 266 | Hernando County | FL | 54.2 | 212,807 | +19.4% |
| 267 | Calcasieu Parish | LA | 54.1 | 203,761 | -0.4% |
| 268 | McLennan County | TX | 54.1 | 268,583 | +10.3% |
| 269 | Hampden County | MA | 53.9 | 460,291 | -5.4% |
| 270 | Saginaw County | MI | 53.9 | 187,782 | -6.4% |
| 271 | Clark County | NV | 53.7 | 2,336,573 | +17.1% |
| 272 | Queens | NY | 53.5 | 2,252,196 | +3.1% |
| 273 | Harris County | TX | 53.5 | 4,835,125 | +8.4% |
| 274 | Citrus County | FL | 53.4 | 166,696 | +9.7% |
| 275 | Essex County | NJ | 53.4 | 851,117 | -2.1% |
| 276 | Dauphin County | PA | 53.4 | 289,234 | +7.3% |
| 277 | Pasco County | FL | 53.3 | 632,996 | +22.1% |
| 278 | Lucas County | OH | 53.2 | 425,484 | -6.9% |
| 279 | Sumner County | TN | 53.2 | 207,994 | +14.4% |
| 280 | Honolulu County | HI | 53.1 | 989,408 | -3.3% |
| 281 | Mahoning County | OH | 52.9 | 225,596 | -9.4% |
| 282 | Brown County | WI | 52.9 | 271,417 | +5.1% |
| 283 | Ottawa County | MI | 52.7 | 303,372 | +13.7% |
| 284 | Sussex County | DE | 52.6 | 263,509 | +11.1% |
| 285 | Jefferson County | MO | 52.6 | 231,230 | +0.8% |
| 286 | Hendricks County | IN | 52.2 | 186,387 | +15.1% |
| 287 | St. Clair County | IL | 52.1 | 251,018 | -3.8% |
| 288 | Oneida County | NY | 52.1 | 227,555 | -6.7% |
| 289 | Racine County | WI | 51.9 | 196,613 | +14.3% |
| 290 | Mobile County | AL | 51.6 | 411,640 | +2.3% |
| 291 | Hawaii County | HI | 51.6 | 207,615 | +5.3% |
| 292 | Berks County | PA | 51.5 | 432,821 | +3.9% |
| 293 | Madison County | AL | 51 | 412,600 | +12.7% |
| 294 | Fresno County | CA | 51 | 1,017,162 | +6.4% |
| 295 | DeKalb County | GA | 50.9 | 762,992 | +6.5% |
| 296 | Johnson County | TX | 50.8 | 202,906 | +27.4% |
| 297 | Montgomery County | AL | 50.7 | 224,980 | -4.3% |
| 298 | Riverside County | CA | 50.7 | 2,492,442 | +16.5% |
| 299 | Erie County | PA | 50.6 | 267,571 | -4.6% |
| 300 | Gaston County | NC | 50.1 | 237,242 | +11.9% |
| 301 | Elkhart County | IN | 50 | 206,409 | +1.9% |
| 302 | Kalamazoo County | MI | 50 | 262,215 | +2.2% |
| 303 | Hinds County | MS | 50 | 214,870 | -9.8% |
| 304 | York County | SC | 49.9 | 298,320 | +20.7% |
| 305 | Jefferson County | TX | 49.9 | 251,496 | -9.4% |
| 306 | Franklin County | OH | 49.7 | 1,326,063 | +5.7% |
| 307 | Richland County | SC | 49.6 | 425,138 | +5% |
| 308 | Richmond | VA | 49.3 | 229,247 | -1.1% |
| 309 | Prince William County | VA | 49.2 | 489,640 | +13.8% |
| 310 | Broome County | NY | 49.1 | 196,077 | -3.9% |
| 311 | Newport News | VA | 49.1 | 183,118 | -0.8% |
| 312 | Ramsey County | MN | 48.9 | 536,075 | -1.9% |
| 313 | Northampton County | PA | 48.9 | 319,091 | -5.5% |
| 314 | Johnston County | NC | 48.8 | 241,955 | +23.2% |
| 315 | Durham County | NC | 48.7 | 336,892 | +10.2% |
| 316 | St. Joseph County | IN | 48.4 | 272,848 | -0.6% |
| 317 | Ellis County | TX | 48.4 | 222,829 | +28.2% |
| 318 | Hays County | TX | 48.3 | 280,486 | +48.2% |
| 319 | Trumbull County | OH | 48.1 | 200,373 | -7.7% |
| 320 | Stanislaus County | CA | 47.9 | 551,430 | +8% |
| 321 | York County | PA | 47.7 | 464,640 | +1.3% |
| 322 | Tippecanoe County | IN | 47.6 | 188,792 | -0.9% |
| 323 | Yakima County | WA | 47.6 | 256,643 | +3.7% |
| 324 | Alamance County | NC | 47.4 | 179,165 | +10.4% |
| 325 | Muscogee County | GA | 47.3 | 201,877 | +0.5% |
| 326 | Montgomery County | OH | 47.3 | 533,796 | -7.2% |
| 327 | Washtenaw County | MI | 47.1 | 365,536 | +3.4% |
| 328 | Bexar County | TX | 46.9 | 2,087,679 | +9.2% |
| 329 | Anderson County | SC | 46.3 | 213,076 | +11.1% |
| 330 | Genesee County | MI | 46.2 | 401,522 | +0.8% |
| 331 | St. Louis | MO | 46.1 | 281,754 | -0.9% |
| 332 | Ingham County | MI | 45.8 | 284,637 | -6.1% |
| 333 | Lorain County | OH | 45.8 | 317,910 | +5.1% |
| 334 | Tolland County | CT | 45.6 | 150,293 | -0.4% |
| 335 | Brazos County | TX | 45.6 | 244,703 | +10.9% |
| 336 | Dorchester County | SC | 45.3 | 169,833 | +18.4% |
| 337 | San Bernardino County | CA | 44.1 | 2,195,611 | +14.8% |
| 338 | Norfolk | VA | 44.1 | 230,930 | +4.8% |
| 339 | Licking County | OH | 44 | 183,201 | +12.1% |
| 340 | Milwaukee County | WI | 43.9 | 916,205 | +1.2% |
| 341 | Doña Ana County | NM | 43.7 | 225,210 | +3.2% |
| 342 | Osceola County | FL | 43.6 | 437,784 | +32.4% |
| 343 | Denton County | TX | 43.6 | 1,007,703 | +26.9% |
| 344 | Charles County | MD | 43.5 | 171,973 | +4.4% |
| 345 | Kent County | DE | 43.3 | 189,789 | +7.4% |
| 346 | Richmond County | GA | 43.3 | 205,414 | -7% |
| 347 | Orleans Parish | LA | 43.1 | 364,136 | +5.5% |
| 348 | Harrison County | MS | 43.1 | 210,612 | +0.2% |
| 349 | Paulding County | GA | 42.9 | 183,164 | +21.7% |
| 350 | Yolo County | CA | 42.8 | 220,544 | +7.5% |
| 351 | Suffolk County | MA | 42.7 | 768,425 | +0.8% |
| 352 | Warren County | OH | 42.7 | 252,148 | +14.6% |
| 353 | Henry County | GA | 42.6 | 254,613 | +8.2% |
| 354 | Brooklyn | NY | 42.6 | 2,561,225 | -0.2% |
| 355 | Shelby County | TN | 42.3 | 910,042 | -2.7% |
| 356 | Solano County | CA | 42.1 | 449,218 | +12.1% |
| 357 | Santa Rosa County | FL | 42.1 | 203,162 | +24.3% |
| 358 | Polk County | FL | 41.9 | 818,330 | +19.6% |
| 359 | Clermont County | OH | 41.9 | 211,972 | +7.7% |
| 360 | Fort Bend County | TX | 41.6 | 916,778 | +28.5% |
| 361 | Champaign County | IL | 41.2 | 205,644 | +0.9% |
| 362 | Tuscaloosa County | AL | 40.9 | 237,373 | +5.6% |
| 363 | Davidson County | NC | 40.9 | 174,804 | +9.4% |
| 364 | Butler County | OH | 40.9 | 393,043 | -0.9% |
| 365 | El Paso County | TX | 40.8 | 869,880 | +9.8% |
| 366 | Washington, DC | DC | 39.4 | 678,972 | +1% |
| 367 | Yuma County | AZ | 38.8 | 213,221 | +5.3% |
| 368 | Spartanburg County | SC | 38.7 | 356,698 | +10.3% |
| 369 | Lee County | AL | 38.6 | 183,215 | +23.5% |
| 370 | San Joaquin County | CA | 38.3 | 800,965 | +10.5% |
| 371 | Arlington County | VA | 38.1 | 234,162 | +7.4% |
| 372 | Prince George's County | MD | 36.5 | 947,430 | -1% |
| 373 | Cumberland County | NC | 36 | 337,890 | +1.6% |
| 374 | Galveston County | TX | 35.8 | 361,744 | +10.8% |
| 375 | Wayne County | MI | 35.6 | 1,751,169 | -0.3% |
| 376 | Rutherford County | TN | 35.3 | 367,101 | +17.8% |
| 377 | Berkeley County | SC | 35 | 255,217 | +41.6% |
| 378 | Tulare County | CA | 34.9 | 479,468 | +8.3% |
| 379 | Aiken County | SC | 34.7 | 177,130 | +8.9% |
| 380 | Philadelphia County | PA | 34.6 | 1,550,542 | +0.9% |
| 381 | Hudson County | NJ | 34.5 | 705,472 | +1.5% |
| 382 | Guadalupe County | TX | 34.5 | 188,454 | +24.9% |
| 383 | Kern County | CA | 34.1 | 913,820 | +6.7% |
| 384 | Brazoria County | TX | 33.9 | 398,938 | +14.5% |
| 385 | Houston County | GA | 33.3 | 171,974 | +8.9% |
| 386 | Muskegon County | MI | 32.6 | 176,564 | +1.9% |
| 387 | Baltimore | MD | 31.8 | 565,239 | -13.3% |
| 388 | Onslow County | NC | 30.7 | 213,676 | +17.9% |
| 389 | Webb County | TX | 30.5 | 269,148 | +1.5% |
| 390 | Hidalgo County | TX | 30.3 | 898,471 | +7.4% |
| 391 | Kaufman County | TX | 30.3 | 185,690 | +20.1% |
| 392 | Cameron County | TX | 29.1 | 426,710 | +0.7% |
| 393 | DeSoto County | MS | 28.7 | 193,247 | +5.7% |
| 394 | Bell County | TX | 26 | 393,193 | +12.5% |
| 395 | Montgomery County | TN | 25.7 | 239,872 | +11.8% |
| 396 | Merced County | CA | 23.6 | 291,920 | +6.5% |
| 397 | Imperial County | CA | 23 | 179,057 | +7% |
| 398 | Bronx | NY | 18.8 | 1,356,476 | +4% |
| 399 | Pinal County | AZ | 18.2 | 484,239 | +29.8% |
| 400 | Clayton County | GA | 17.3 | 298,300 | -3.5% |
Index: average, across 12 ad-heavy local categories, of the share of U.S. counties with 20,000+ residents that have fewer employer locations per resident than this county. Connecticut uses its historic counties and 2021 business data because the Census Bureau's newer files use planning regions. Source: U.S. Census Bureau County Business Patterns. Data built October 16, 2026. Method
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