Missouri Citizen Population By County in 2015 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the citizen population for Missouri was 5,912,040 and represented 97.79% of the total Missouri population.

Among all Missouri counties, St. Louis had the highest citizen population (968.04K), followed by Jackson (657.79K), and St. Charles (366.97K).

In terms of percentages, Carter had the highest percentage of its population being citizens (100.00%), followed by Clark (100.00%), and Dallas (100.00%).

The chart and table below shows the citizen population of each county and the percentage of each county's population that were citizens.

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

You may also be interested in:
Missouri Citizen Voting-age Population By County in 2015

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Missouri Citizen Population By County in 2015

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County	Citizen Population	% of County Population
St. Louis	968035	96.68
Jackson	657785	96.61
St. Charles	366970	97.91
St. Louis city	304715	95.87
Greene	277795	98.09
Clay	225760	98.00
Jefferson	219760	99.18
Boone	164110	96.10
Jasper	113770	97.09
Franklin	101060	99.24
Cass	99510	98.74
Platte	90355	96.75
Buchanan	87140	97.30
Christian	80070	98.97
Cape Girardeau	76330	98.36
Cole	75425	98.55
St. Francois	65640	99.44
Newton	57655	98.09
Johnson	53375	98.56
Lincoln	53330	99.03
Taney	52020	97.13
Pulaski	51945	97.19
Callaway	44105	98.97
Phelps	43345	96.26
Camden	43200	98.35
Butler	42635	99.27
Pettis	40140	95.09
Howell	39905	98.96
Scott	38965	99.76
Lawrence	37675	98.51
Webster	36465	99.39
Laclede	35460	99.85
Barry	34270	95.93
Lafayette	32690	99.32
Warren	32645	98.79
Stone	31225	99.52
Polk	31050	99.82
Dunklin	30875	97.83
Stoddard	29735	99.67
Marion	28670	99.41
Texas	25610	99.51
Audrain	25600	99.28
Adair	25115	98.26
Randolph	25020	99.54
Washington	25000	99.80
Miller	24885	99.72
Crawford	24520	99.43
Ray	22990	99.83
Nodaway	22885	98.71
Saline	22715	97.34
Henry	21920	99.48
McDonald	21275	93.46
Vernon	20750	99.38
Clinton	20375	99.39
Morgan	20105	99.41
Perry	18990	99.42
Benton	18805	99.74
Wright	18405	99.76
Pike	18340	99.06
New Madrid	18305	99.43
Pemiscot	17760	99.58
Ste. Genevieve	17670	98.22
Cooper	17515	99.55
Andrew	17295	99.80
Dallas	16565	100.00
Bates	16560	99.49
Dent	15495	99.26
Moniteau	15485	98.01
Macon	15415	99.71
Livingston	14995	99.70
Gasconade	14900	99.67
Mississippi	14145	99.54
Ripley	13980	99.93
Cedar	13880	99.93
Osage	13745	99.89
Douglas	13475	99.70
Wayne	13370	99.81
DeKalb	12725	99.57
Linn	12370	99.76
Madison	12335	99.48
Bollinger	12330	99.80
Barton	12015	98.77
Montgomery	11875	99.46
Oregon	10935	99.59
Iron	10285	99.66
Grundy	10220	99.66
Ralls	10210	99.66
Howard	10145	99.66
Lewis	10040	98.72
Ozark	9525	99.90
St. Clair	9460	99.37
Hickory	9305	99.68
Carroll	9070	99.73
Caldwell	9015	99.23
Maries	8990	99.28
Monroe	8660	99.77
Harrison	8595	98.57
Shannon	8300	99.82
Daviess	8250	99.70
Chariton	7640	99.87
Dade	7605	99.80
Clark	6920	100.00
Gentry	6740	99.34
Reynolds	6575	99.92
Carter	6285	100.00
Shelby	6160	99.68
Sullivan	6130	94.16
Atchison	5395	99.17
Putnam	4870	99.49
Scotland	4860	99.69
Holt	4610	99.89
Schuyler	4330	98.52
Knox	4020	99.63
Mercer	3695	99.33
Worth	2080	100.00