| Population | County | County Seat |
| 897,472 | |
| 569,891 | |
| 382,032 | |
| 307,896 | |
| 182,023 | |
| 153,048 | |
| 134,768 | |
| 130,449 | |
| 126,638 | |
| 107,198 | |
| 105,823 | |
| 91,837 | |
| 88,808 | |
| 87,965 | |
| 71,330 | |
| 71,170 | |
| 69,498 | |
| 62,909 | |
| 62,315 | |
| 58,128 | |
| 56,742 | |
| 54,433 | |
| 53,563 | |
| 51,910 | |
| 51,271 | |
| 49,015 | |
| 48,154 | |
| 48,014 | |
| 46,802 | |
| 44,294 | |
| 43,156 | |
| 39,926 | |
| | Population | County | County Seat |
| 39,854 | |
| 39,270 | |
| 39,086 | |
| 38,961 | |
| 38,276 | |
| 37,586 | |
| 37,279 | |
| 35,912 | |
| 34,895 | |
| 33,565 | |
| 32,450 | |
| 31,340 | |
| 31,115 | |
| 29,862 | |
| 29,475 | |
| 29,447 | |
| 28,796 | |
| 28,400 | |
| 28,105 | |
| 27,776 | |
| 27,101 | |
| 26,767 | |
| 25,578 | |
| 25,522 | |
| 24,653 | |
| 23,102 | |
| 22,295 | |
| 21,127 | |
| 20,659 | |
| 20,386 | |
| 20,118 | |
| 19,797 | |
| | Population | County | County Seat |
| 19,757 | |
| 17,929 | |
| 17,808 | |
| 17,712 | |
| 17,667 | |
| 17,499 | |
| 17,423 | |
| 16,842 | |
| 16,625 | |
| 16,537 | |
| 16,050 | |
| 15,540 | |
| 14,532 | |
| 14,332 | |
| 12,826 | |
| 12,370 | |
| 12,367 | |
| 11,731 | |
| 11,370 | |
| 11,367 | |
| 11,086 | |
| 10,984 | |
| 8,088 | |
| 7,976 | |
| 7,954 | |
| 7,631 | |
| 7,259 | |
| 6,780 | |
| 5,740 | |
| 5,508 | |
| 4,945 | |
|