Missouri Population By County in 2010

Updated on January 27, 2024.

Based on the US Census Vintage data estimates, in 2010, the population of Missouri was 5,996,089. Among all Missouri counties, St. Louis[object Promise] had the highest population (998,846), followed by Jackson[object Promise] (674,854), and St. Charles[object Promise] (361,808). Worth[object Promise] was the least populated county (2,152).

Hover over or click on the counties in the map below to see the populations. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.

You can see similar information for other states and by state for the United States.

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Missouri Population By County in 2010
Missouri Population By County in 2010
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County Population % of State Population
Adair 25638 0.43
Andrew 17345 0.29
Atchison 5656 0.09
Audrain 25453 0.42
Barry 35555 0.59
Barton 12384 0.21
Bates 17026 0.28
Benton 19109 0.32
Bollinger 12349 0.21
Boone 163208 2.72
Buchanan 89071 1.49
Butler 42785 0.71
Caldwell 9428 0.16
Callaway 44312 0.74
Camden 44096 0.74
Cape Girardeau 75905 1.27
Carroll 9282 0.16
Carter 6292 0.11
Cass 99756 1.66
Cedar 13969 0.23
Chariton 7836 0.13
Christian 77841 1.30
Clark 7139 0.12
Clay 222649 3.71
Clinton 20740 0.35
Cole 76145 1.27
Cooper 17601 0.29
Crawford 24631 0.41
Dade 7839 0.13
Dallas 16723 0.28
Daviess 8444 0.14
DeKalb 12899 0.22
Dent 15739 0.26
Douglas 13652 0.23
Dunklin 31951 0.53
Franklin 101424 1.69
Gasconade 15207 0.25
Gentry 6749 0.11
Greene 275320 4.59
Grundy 10254 0.17
Harrison 8968 0.15
Henry 22265 0.37
Hickory 9646 0.16
Holt 4915 0.08
Howard 10141 0.17
Howell 40544 0.68
Iron 10591 0.18
Jackson 674854 11.26
Jasper 117662 1.96
Jefferson 219130 3.66
Johnson 52689 0.88
Knox 4125 0.07
Laclede 35697 0.60
Lafayette 33380 0.56
Lawrence 38590 0.64
Lewis 10206 0.17
Lincoln 52673 0.88
Linn 12774 0.21
Livingston 15128 0.25
McDonald 23071 0.39
Macon 15580 0.26
Madison 12197 0.20
Maries 9159 0.15
Marion 28785 0.48
Mercer 3770 0.06
Miller 24701 0.41
Mississippi 14333 0.24
Moniteau 15630 0.26
Monroe 8787 0.15
Montgomery 12209 0.20
Morgan 20542 0.34
New Madrid 18928 0.32
Newton 58172 0.97
Nodaway 23402 0.39
Oregon 10934 0.18
Osage 13907 0.23
Ozark 9746 0.16
Pemiscot 18260 0.31
Perry 18931 0.32
Pettis 42263 0.71
Phelps 45298 0.76
Pike 18474 0.31
Platte 89714 1.50
Polk 31158 0.52
Pulaski 52865 0.88
Putnam 4974 0.08
Ralls 10196 0.17
Randolph 25454 0.43
Ray 23517 0.39
Reynolds 6676 0.11
Ripley 14102 0.24
St. Charles 361808 6.03
St. Clair 9823 0.16
Ste. Genevieve 18126 0.30
St. Francois 65534 1.09
St. Louis 998846 16.66
Saline 23422 0.39
Schuyler 4441 0.07
Scotland 4841 0.08
Scott 39268 0.66
Shannon 8445 0.14
Shelby 6364 0.11
Stoddard 30025 0.50
Stone 32241 0.54
Sullivan 6737 0.11
Taney 51905 0.87
Texas 26043 0.43
Vernon 21160 0.35
Warren 32612 0.54
Washington 25198 0.42
Wayne 13519 0.23
Webster 36320 0.61
Worth 2152 0.04
Wright 18777 0.31
St. Louis city 319367 5.33