115 Counties — missouri
| County | Type | Population | Land area |
|---|
| adair | County | 24,977 | 568 sq mi |
| andrew | County | 16,492 | 435 sq mi |
| atchison | County | 6,430 | 545 sq mi |
| audrain | County | 25,853 | 693 sq mi |
| barry | County | 34,010 | 779 sq mi |
| barton | County | 12,541 | 594 sq mi |
| bates | County | 16,653 | 849 sq mi |
| benton | County | 17,180 | 706 sq mi |
| bollinger | County | 12,029 | 621 sq mi |
| boone | County | 135,454 | 685 sq mi |
| buchanan | County | 85,998 | 410 sq mi |
| butler | County | 40,867 | 698 sq mi |
| caldwell | County | 8,969 | 429 sq mi |
| callaway | County | 40,766 | 839 sq mi |
| camden | County | 37,051 | 655 sq mi |
| cape girardeau | County | 68,693 | 579 sq mi |
| carroll | County | 10,285 | 695 sq mi |
| carter | County | 5,941 | 508 sq mi |
| cass | County | 82,092 | 699 sq mi |
| cedar | County | 13,733 | 476 sq mi |
| chariton | County | 8,438 | 756 sq mi |
| christian | County | 54,285 | 563 sq mi |
| clark | County | 7,416 | 507 sq mi |
| clay | County | 184,006 | 397 sq mi |
| clinton | County | 18,979 | 419 sq mi |
| cole | County | 71,397 | 392 sq mi |
| cooper | County | 16,670 | 565 sq mi |
| crawford | County | 22,804 | 743 sq mi |
| dade | County | 7,923 | 490 sq mi |
| dallas | County | 15,661 | 542 sq mi |
| daviess | County | 8,016 | 567 sq mi |
| dekalb | County | 11,597 | 424 sq mi |
| dent | County | 14,927 | 754 sq mi |
| douglas | County | 13,084 | 815 sq mi |
| dunklin | County | 33,155 | 546 sq mi |
| franklin | County | 93,807 | 922 sq mi |
| gasconade | County | 15,342 | 520 sq mi |
| gentry | County | 6,861 | 492 sq mi |
| greene | County | 240,391 | 675 sq mi |
| grundy | County | 10,432 | 436 sq mi |
| harrison | County | 8,850 | 725 sq mi |
| henry | County | 21,997 | 703 sq mi |
| hickory | County | 8,940 | 399 sq mi |
| holt | County | 5,351 | 462 sq mi |
| howard | County | 10,212 | 466 sq mi |
| howell | County | 37,238 | 928 sq mi |
| iron | County | 10,697 | 551 sq mi |
| jackson | County | 654,880 | 605 sq mi |
| jasper | County | 104,686 | 640 sq mi |
| jefferson | County | 198,099 | 657 sq mi |
| johnson | County | 48,258 | 831 sq mi |
| knox | County | 4,361 | 506 sq mi |
| laclede | County | 32,513 | 766 sq mi |
| lafayette | County | 32,960 | 629 sq mi |
| lawrence | County | 35,204 | 613 sq mi |
| lewis | County | 10,494 | 505 sq mi |
| lincoln | County | 38,944 | 631 sq mi |
| linn | County | 13,754 | 620 sq mi |
| livingston | County | 14,558 | 535 sq mi |
| macon | County | 15,762 | 804 sq mi |
| madison | County | 11,800 | 497 sq mi |
| maries | County | 8,903 | 528 sq mi |
| marion | County | 28,289 | 438 sq mi |
| mcdonald | County | 21,681 | 540 sq mi |
| mercer | County | 3,757 | 455 sq mi |
| miller | County | 23,564 | 592 sq mi |
| mississippi | County | 13,427 | 413 sq mi |
| moniteau | County | 14,827 | 417 sq mi |
| monroe | County | 9,311 | 646 sq mi |
| montgomery | County | 12,136 | 539 sq mi |
| morgan | County | 19,309 | 598 sq mi |
| new madrid | County | 19,760 | 678 sq mi |
| newton | County | 52,636 | 627 sq mi |
| nodaway | County | 21,912 | 877 sq mi |
| oregon | County | 10,344 | 792 sq mi |
| osage | County | 13,062 | 606 sq mi |
| ozark | County | 9,542 | 747 sq mi |
| pemiscot | County | 20,047 | 493 sq mi |
| perry | County | 18,132 | 475 sq mi |
| pettis | County | 39,403 | 685 sq mi |
| phelps | County | 39,825 | 673 sq mi |
| pike | County | 18,351 | 673 sq mi |
| platte | County | 73,781 | 420 sq mi |
| polk | County | 26,992 | 637 sq mi |
| pulaski | County | 41,165 | 547 sq mi |
| putnam | County | 5,223 | 518 sq mi |
| ralls | County | 9,626 | 471 sq mi |
| randolph | County | 24,663 | 482 sq mi |
| ray | County | 23,354 | 570 sq mi |
| reynolds | County | 6,689 | 811 sq mi |
| ripley | County | 13,509 | 630 sq mi |
| saline | County | 23,756 | 756 sq mi |
| schuyler | County | 4,170 | 308 sq mi |
| scotland | County | 4,983 | 439 sq mi |
| scott | County | 40,422 | 421 sq mi |
| shannon | County | 8,324 | 1,004 sq mi |
| shelby | County | 6,799 | 501 sq mi |
| st. charles | County | 283,883 | 561 sq mi |
| st. clair | County | 9,652 | 677 sq mi |
| ste. genevieve | County | 17,842 | 502 sq mi |
| st. francois | County | 55,641 | 450 sq mi |
| st. louis | County | 0 | 0 sq mi |
| st. louis city | County | 1,016,315 | 508 sq mi |
| stoddard | County | 29,705 | 827 sq mi |
| stone | County | 28,658 | 463 sq mi |
| sullivan | County | 7,219 | 651 sq mi |
| taney | County | 39,703 | 632 sq mi |
| texas | County | 23,003 | 1,179 sq mi |
| vernon | County | 20,454 | 834 sq mi |
| warren | County | 24,525 | 432 sq mi |
| washington | County | 23,344 | 760 sq mi |
| wayne | County | 13,259 | 761 sq mi |
| webster | County | 31,045 | 593 sq mi |
| worth | County | 2,382 | 267 sq mi |
| wright | County | 17,955 | 682 sq mi |