How many counties in Missouri? All 115 listed
Quick answer
Missouri has 115 counties and county equivalents holding 6,168,181 residents. The most populous county in Missouri is St. Louis County with 996,618 residents; the smallest is Worth County. County boundaries divide the state's land area — measured in square miles by the Census Bureau — into the units used for property assessment, elections and local sales tax. The statewide sales tax base rate is 4.225%, before county and city add-ons.
All 115 counties
Ranked by population, Census 2019-2023 ACS 5-year estimates.
| County | Population | Median income | Median home value | Median rent |
|---|---|---|---|---|
| St. Louis County | 996,618 | $81,340 | $260,700 | $1,164 |
| Jackson County | 717,021 | $67,178 | $213,300 | $1,151 |
| St. Charles County | 409,830 | $102,912 | $296,800 | $1,312 |
| Greene County | 301,121 | $57,488 | $203,500 | $940 |
| St. Louis city | 293,109 | $55,279 | $185,100 | $978 |
| Clay County | 255,566 | $86,150 | $256,400 | $1,220 |
| Jefferson County | 228,227 | $80,522 | $218,800 | $972 |
| Boone County | 185,874 | $69,913 | $254,100 | $1,060 |
| Jasper County | 123,532 | $57,525 | $158,500 | $904 |
| Cass County | 109,393 | $87,413 | $269,000 | $1,147 |
| Platte County | 108,751 | $95,748 | $317,600 | $1,247 |
| Franklin County | 105,316 | $71,973 | $214,900 | $874 |
| Christian County | 91,229 | $81,245 | $249,700 | $979 |
| Buchanan County | 83,855 | $59,423 | $156,600 | $889 |
| Cape Girardeau County | 82,180 | $68,912 | $208,300 | $881 |
| Cole County | 76,924 | $73,273 | $214,400 | $804 |
| St. Francois County | 66,864 | $54,813 | $155,100 | $786 |
| Lincoln County | 61,636 | $85,276 | $224,800 | $972 |
| Newton County | 59,490 | $64,583 | $175,300 | $777 |
| Taney County | 56,382 | $58,258 | $203,800 | $925 |
| Johnson County | 54,331 | $67,123 | $221,400 | $905 |
| Pulaski County | 53,850 | $66,435 | $189,700 | $1,072 |
| Phelps County | 44,948 | $55,427 | $194,900 | $801 |
| Callaway County | 44,541 | $72,645 | $196,200 | $850 |
| Camden County | 43,416 | $62,927 | $270,700 | $838 |
| Pettis County | 43,205 | $60,232 | $161,500 | $863 |
| Butler County | 42,166 | $49,213 | $138,800 | $768 |
| Howell County | 40,168 | $49,814 | $161,000 | $722 |
| Webster County | 39,868 | $69,731 | $219,100 | $777 |
| Lawrence County | 38,392 | $55,849 | $159,800 | $785 |
| Scott County | 37,967 | $58,847 | $143,700 | $809 |
| Warren County | 36,467 | $77,989 | $241,200 | $913 |
| Laclede County | 36,245 | $50,825 | $158,000 | $796 |
| Barry County | 34,831 | $56,611 | $172,900 | $750 |
| Lafayette County | 32,974 | $79,091 | $200,300 | $848 |
| Polk County | 32,109 | $56,686 | $189,600 | $792 |
| Stone County | 31,697 | $61,323 | $236,500 | $892 |
| Stoddard County | 28,547 | $54,067 | $135,400 | $737 |
| Marion County | 28,493 | $63,908 | $158,100 | $813 |
| Dunklin County | 27,795 | $47,368 | $93,800 | $632 |
| Adair County | 25,224 | $56,583 | $159,500 | $782 |
| Miller County | 25,081 | $55,172 | $169,800 | $724 |
| Texas County | 24,956 | $48,055 | $123,300 | $647 |
| Audrain County | 24,688 | $56,232 | $121,600 | $698 |
| Randolph County | 24,524 | $55,310 | $141,900 | $742 |
| McDonald County | 23,492 | $48,145 | $134,100 | $764 |
| Washington County | 23,483 | $51,886 | $118,400 | $680 |
| Saline County | 23,177 | $56,566 | $139,600 | $733 |
| Ray County | 23,149 | $72,152 | $187,400 | $808 |
| Crawford County | 22,890 | $56,345 | $166,000 | $807 |
| Henry County | 22,194 | $56,621 | $153,500 | $740 |
| Morgan County | 21,430 | $49,663 | $180,400 | $692 |
| Clinton County | 21,259 | $70,625 | $204,300 | $985 |
| Nodaway County | 20,959 | $55,970 | $165,100 | $754 |
| Benton County | 19,887 | $52,200 | $164,700 | $823 |
| Vernon County | 19,713 | $54,519 | $136,700 | $722 |
| Perry County | 18,947 | $63,356 | $189,400 | $923 |
| Wright County | 18,722 | $47,304 | $152,300 | $558 |
| Ste. Genevieve County | 18,551 | $61,310 | $215,600 | $774 |
| Andrew County | 18,086 | $74,007 | $196,200 | $944 |
| Pike County | 17,623 | $57,572 | $129,400 | $742 |
| Dallas County | 17,344 | $53,177 | $151,200 | $685 |
| Cooper County | 16,835 | $67,548 | $197,100 | $763 |
| Bates County | 16,121 | $57,914 | $154,800 | $760 |
| New Madrid County | 16,041 | $49,237 | $105,500 | $734 |
| Moniteau County | 15,303 | $65,161 | $168,300 | $766 |
| Pemiscot County | 15,232 | $40,748 | $95,900 | $708 |
| Macon County | 15,163 | $58,318 | $127,000 | $719 |
| Gasconade County | 14,774 | $65,096 | $168,900 | $671 |
| Dent County | 14,506 | $54,306 | $149,700 | $615 |
| Cedar County | 14,440 | $45,577 | $162,500 | $783 |
| Livingston County | 14,330 | $60,148 | $138,300 | $747 |
| Osage County | 13,379 | $75,355 | $205,700 | $644 |
| Madison County | 12,665 | $58,435 | $155,900 | $817 |
| Mississippi County | 12,079 | $46,258 | $100,300 | $782 |
| Douglas County | 11,850 | $49,828 | $164,400 | $687 |
| Linn County | 11,850 | $61,975 | $117,300 | $612 |
| Barton County | 11,685 | $49,503 | $136,000 | $777 |
| Montgomery County | 11,422 | $61,042 | $171,300 | $767 |
| DeKalb County | 11,176 | $69,093 | $167,500 | $796 |
| Wayne County | 10,942 | $43,393 | $113,100 | $632 |
| Ripley County | 10,755 | $43,898 | $110,800 | $666 |
| Bollinger County | 10,591 | $57,286 | $142,400 | $677 |
| Ralls County | 10,394 | $62,054 | $153,400 | $765 |
| Howard County | 10,141 | $62,628 | $145,300 | $807 |
| Lewis County | 9,945 | $52,340 | $118,900 | $627 |
| Grundy County | 9,822 | $53,839 | $107,000 | $679 |
| Iron County | 9,482 | $51,161 | $113,000 | $671 |
| St. Clair County | 9,451 | $46,731 | $142,500 | $607 |
| Caldwell County | 8,890 | $62,520 | $156,700 | $628 |
| Ozark County | 8,773 | $42,329 | $156,400 | $626 |
| Oregon County | 8,704 | $44,259 | $117,700 | $735 |
| Monroe County | 8,672 | $48,299 | $147,400 | $667 |
| Hickory County | 8,501 | $35,084 | $123,200 | $699 |
| Carroll County | 8,459 | $61,712 | $110,500 | $785 |
| Daviess County | 8,449 | $60,665 | $149,200 | $731 |
| Maries County | 8,435 | $61,359 | $193,100 | $594 |
| Harrison County | 8,198 | $53,364 | $107,400 | $666 |
| Dade County | 7,627 | $49,899 | $157,200 | $650 |
| Chariton County | 7,406 | $63,307 | $118,900 | $540 |
| Shannon County | 7,137 | $59,000 | $151,000 | $509 |
| Clark County | 6,680 | $51,458 | $117,600 | $589 |
| Gentry County | 6,224 | $57,458 | $123,000 | $620 |
| Reynolds County | 6,058 | $44,357 | $119,900 | $627 |
| Shelby County | 6,011 | $52,127 | $86,200 | $570 |
| Sullivan County | 5,903 | $55,500 | $103,300 | $692 |
| Carter County | 5,269 | $45,083 | $147,600 | $661 |
| Atchison County | 5,216 | $59,260 | $100,600 | $595 |
| Scotland County | 4,698 | $67,568 | $141,100 | $516 |
| Putnam County | 4,675 | $56,875 | $111,600 | $575 |
| Holt County | 4,254 | $58,516 | $122,300 | $702 |
| Schuyler County | 4,044 | $56,023 | $118,200 | $382 |
| Knox County | 3,760 | $53,333 | $97,200 | $661 |
| Mercer County | 3,501 | $60,357 | $95,300 | $548 |
| Worth County | 1,956 | $46,167 | $94,600 | $353 |
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
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