Missouri Citizen Population By County in 2023 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2023, the citizen population for Missouri was 6,035,610 and represented 97.85% of the total Missouri population.

Among all Missouri counties, St. Louis had the highest citizen population (961.31K), followed by Jackson (692.37K), and St. Charles (401.89K).

In terms of percentages, Bollinger had the highest percentage of its population being citizens (100.00%), followed by Hickory (100.00%), and Wayne (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 2023

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

See this for other years:

Missouri Citizen Population By County in 2023

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County	Citizen Population	% of County Population
St. Louis	961305	96.46
Jackson	692365	96.56
St. Charles	401885	98.06
Greene	295595	98.17
St. Louis city	281730	96.12
Clay	250355	97.96
Jefferson	226755	99.36
Boone	178815	96.20
Jasper	120165	97.28
Cass	108700	99.37
Platte	106530	97.96
Franklin	104445	99.17
Christian	90000	98.65
Buchanan	82275	98.12
Cape Girardeau	81095	98.68
Cole	75730	98.45
St. Francois	66465	99.40
Lincoln	61315	99.48
Newton	57675	96.95
Taney	55655	98.71
Johnson	53360	98.22
Pulaski	52590	97.66
Callaway	44320	99.51
Phelps	43690	97.20
Camden	42995	99.03
Butler	41970	99.54
Pettis	41545	96.16
Howell	39965	99.49
Webster	39685	99.54
Scott	37840	99.67
Lawrence	37600	97.94
Warren	36310	99.58
Laclede	36005	99.34
Barry	33985	97.57
Lafayette	32575	98.79
Polk	31915	99.39
Stone	31485	99.34
Stoddard	28490	99.81
Marion	28385	99.61
Dunklin	27215	97.91
Texas	24925	99.88
Miller	24875	99.18
Audrain	24550	99.43
Randolph	24435	99.63
Adair	24395	96.71
Washington	23405	99.66
Ray	23025	99.46
Crawford	22835	99.76
Saline	22210	95.84
Henry	22115	99.64
McDonald	21620	92.04
Morgan	21365	99.70
Clinton	21120	99.34
Nodaway	20605	98.31
Benton	19800	99.57
Vernon	19470	98.76
Perry	18725	98.84
Wright	18700	99.89
Ste. Genevieve	18535	99.92
Andrew	18050	99.81
Pike	17535	99.49
Dallas	17325	99.89
Cooper	16795	99.76
Bates	16065	99.66
New Madrid	15960	99.50
Pemiscot	15160	99.54
Macon	15120	99.70
Moniteau	15115	98.76
Gasconade	14750	99.83
Dent	14385	99.17
Cedar	14380	99.58
Livingston	14260	99.51
Osage	13370	99.93
Madison	12585	99.37
Mississippi	12015	99.46
Linn	11790	99.49
Douglas	11780	99.41
Barton	11675	99.91
Montgomery	11380	99.65
DeKalb	11030	98.70
Wayne	10940	100.00
Ripley	10690	99.40
Bollinger	10590	100.00
Ralls	10380	99.86
Howard	10095	99.56
Lewis	9880	99.35
Grundy	9765	99.44
Iron	9445	99.63
St. Clair	9390	99.37
Caldwell	8850	99.55
Ozark	8750	99.72
Oregon	8675	99.66
Monroe	8605	99.25
Hickory	8500	100.00
Carroll	8455	99.94
Daviess	8410	99.53
Maries	8365	99.17
Harrison	8130	99.15
Dade	7600	99.67
Chariton	7340	99.12
Shannon	7125	99.86
Clark	6665	99.78
Gentry	6195	99.52
Reynolds	6055	99.92
Shelby	5965	99.25
Sullivan	5590	94.67
Carter	5225	99.15
Atchison	5195	99.62
Putnam	4660	99.68
Scotland	4650	98.94
Holt	4230	99.41
Schuyler	4035	99.75
Knox	3755	99.87
Mercer	3425	97.86
Worth	1955	100.00