Indiana Citizen Population By County in 2010 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2010, the citizen population for Indiana was 6,231,810 and represented 97.11% of the total Indiana population.

Among all Indiana counties, Marion had the highest citizen population (837.90K), followed by Lake (479.09K), and Allen (339.87K).

In terms of percentages, Vermillion had the highest percentage of its population being citizens (99.88%), followed by Crawford (99.86%), and Pike (99.85%).

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:
Indiana Citizen Voting-age Population By County in 2010

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

See this for other years:

Indiana Citizen Population By County in 2010

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County	Citizen Population	% of County Population
Marion	837895	94.04
Lake	479090	96.90
Allen	339870	96.74
St. Joseph	257450	96.60
Hamilton	251785	96.38
Elkhart	184480	93.71
Vanderburgh	175410	98.38
Porter	159435	98.40
Tippecanoe	155435	92.17
Hendricks	137430	98.14
Johnson	133740	98.34
Madison	130110	98.98
Monroe	127140	94.57
Delaware	115940	98.80
LaPorte	109015	98.27
Vigo	105440	98.40
Clark	104795	97.59
Howard	82770	99.33
Kosciusko	74565	96.86
Floyd	72525	98.55
Bartholomew	71325	94.03
Grant	69570	99.14
Wayne	68495	99.00
Morgan	68305	99.49
Hancock	67630	99.44
Warrick	57660	98.74
Boone	54260	99.02
Dearborn	49280	99.40
Henry	48790	99.73
Lawrence	45870	99.31
Marshall	45580	97.03
Noble	45450	95.65
Shelby	43295	97.88
DeKalb	41485	98.84
Dubois	40720	97.39
Jackson	40350	96.30
Harrison	38435	99.53
Knox	37880	98.58
Putnam	37700	99.08
Huntington	37205	99.69
Montgomery	37205	97.55
Miami	37055	99.33
Cass	36965	94.64
LaGrange	36630	99.01
Adams	34095	99.81
Steuben	33575	98.49
Gibson	33210	99.48
Wabash	33010	99.35
Greene	32970	99.65
Whitley	32865	99.62
Jasper	32625	98.70
Jefferson	31800	98.16
Clinton	31610	95.01
Daviess	30380	97.86
Ripley	28325	99.14
Washington	28130	99.66
Jennings	28085	98.65
Wells	27550	99.30
Clay	26905	99.70
Randolph	26015	99.07
Posey	25960	99.46
Decatur	25240	98.65
Fayette	24245	99.51
Scott	23925	99.23
White	23880	96.54
Starke	23145	99.14
Franklin	23095	99.57
Owen	21590	99.33
Sullivan	21460	99.72
Jay	21330	99.49
Spencer	20785	99.09
Fulton	20410	98.67
Carroll	19945	99.06
Orange	19715	99.47
Perry	19255	99.69
Rush	17540	99.83
Parke	17270	99.28
Fountain	17140	98.90
Vermillion	16390	99.88
Tipton	15965	98.98
Brown	15230	99.74
Newton	14105	98.64
Pulaski	13540	99.60
Blackford	12935	99.81
Pike	12935	99.85
Crawford	10810	99.86
Switzerland	10325	99.33
Martin	10295	99.71
Benton	8755	99.26
Warren	8515	99.42
Union	7405	99.20
Ohio	6055	99.84