South Dakota Citizen Population By County in 2019 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2019, the citizen population for South Dakota was 850,795 and represented 97.72% of the total South Dakota population.

Among all South Dakota counties, Minnehaha had the highest citizen population (180.11K), followed by Pennington (109.28K), and Lincoln (56.01K).

In terms of percentages, Buffalo had the highest percentage of its population being citizens (100.00%), followed by Campbell (100.00%), and Faulk (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:
South Dakota Citizen Voting-age Population By County in 2019

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

See this for other years:

South Dakota Citizen Population By County in 2019

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County	Citizen Population	% of County Population
Minnehaha	180110	95.46
Pennington	109280	98.73
Lincoln	56005	98.56
Brown	38050	97.78
Brookings	32880	95.03
Codington	27695	98.82
Meade	27525	99.31
Lawrence	24980	98.04
Yankton	22495	99.03
Davison	19655	98.92
Hughes	17450	99.09
Beadle	16510	90.00
Union	14995	97.56
Oglala Lakota	14315	99.86
Clay	13495	96.70
Lake	12585	98.98
Roberts	10240	99.56
Butte	10185	99.61
Todd	10005	98.14
Charles Mix	9340	99.89
Custer	8575	98.34
Turner	8230	99.16
Hutchinson	7255	99.25
Bon Homme	6900	99.57
Grant	6900	96.50
Fall River	6690	99.19
Spink	6470	99.77
Moody	6450	99.15
Hamlin	5890	97.76
Dewey	5825	99.83
McCook	5490	98.92
Day	5465	99.64
Walworth	5425	99.45
Tripp	5390	98.72
Brule	5230	99.43
Kingsbury	4935	99.80
Marshall	4745	97.04
Deuel	4255	98.50
Gregory	4180	99.88
Corson	4145	99.88
Edmunds	3870	98.98
Lyman	3845	99.87
Clark	3630	98.51
Bennett	3405	99.42
Hanson	3395	99.85
Jackson	3275	99.54
Hand	3235	99.39
Stanley	3015	100.00
Perkins	2885	99.66
Douglas	2880	98.29
Ziebach	2775	99.46
Aurora	2650	95.84
Sanborn	2365	99.37
Faulk	2310	100.00
McPherson	2285	99.56
Potter	2285	98.70
Miner	2195	99.32
Mellette	2050	100.00
Buffalo	2025	100.00
Haakon	2020	100.00
Jerauld	1985	98.27
Campbell	1485	100.00
Hyde	1320	100.00
Sully	1305	100.00
Harding	1285	98.47
Jones	785	98.74