Indiana 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 Indiana was 6,576,880 and represented 96.55% of the total Indiana population.

Among all Indiana counties, Marion had the highest citizen population (897.61K), followed by Lake (483.39K), and Allen (373.24K).

In terms of percentages, Pike had the highest percentage of its population being citizens (99.96%), followed by Crawford (99.95%), and Clay (99.91%).

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 2023

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

See this for other years:

Indiana Citizen Population By County in 2023

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County	Citizen Population	% of County Population
Marion	897610	92.36
Lake	483390	96.87
Allen	373240	96.00
Hamilton	340660	95.38
St. Joseph	261165	95.81
Elkhart	195610	94.56
Vanderburgh	176225	97.95
Hendricks	175285	97.72
Porter	171690	98.59
Tippecanoe	171590	91.56
Johnson	159770	97.43
Monroe	132395	94.69
Madison	129795	99.12
Clark	119940	97.67
Delaware	110665	98.71
LaPorte	110255	98.32
Vigo	104425	98.33
Howard	83040	99.32
Hancock	81210	99.02
Floyd	79190	98.36
Kosciusko	77610	96.58
Bartholomew	76425	92.21
Morgan	71750	99.38
Boone	71345	97.97
Grant	65325	98.42
Wayne	64980	97.90
Warrick	63580	98.35
Dearborn	50560	99.47
Henry	48635	99.47
Noble	45805	96.60
Lawrence	44915	99.65
Marshall	44645	96.58
Shelby	44130	97.84
DeKalb	43315	99.38
Jackson	43055	92.95
Dubois	42020	96.45
LaGrange	40200	99.03
Harrison	39460	99.18
Montgomery	37410	98.05
Putnam	36490	98.38
Huntington	36375	98.97
Adams	35710	99.21
Knox	35515	98.35
Miami	35425	99.04
Cass	35390	93.86
Whitley	34320	99.80
Steuben	34295	98.98
Jefferson	32770	99.08
Gibson	32660	99.02
Jasper	32610	98.22
Daviess	32500	97.19
Greene	30815	99.55
Clinton	30780	93.37
Wabash	30760	99.55
Ripley	28940	99.66
Washington	28085	99.72
Wells	28085	99.38
Jennings	27445	99.49
Clay	26405	99.91
Decatur	26265	99.45
Posey	25110	99.78
Scott	24330	99.43
Randolph	24110	98.71
White	23710	95.95
Fayette	23265	99.47
Starke	23060	98.97
Franklin	22840	99.61
Owen	21365	99.67
Sullivan	20700	99.69
Carroll	20260	99.10
Fulton	20175	98.85
Jay	20155	99.38
Orange	19685	99.70
Spencer	19585	98.57
Perry	19130	99.53
Rush	16630	99.37
Fountain	16455	99.46
Parke	16300	99.73
Brown	15420	99.20
Vermillion	15400	99.68
Tipton	15235	99.38
Newton	13545	97.73
Pulaski	12255	98.51
Pike	12180	99.96
Blackford	11940	99.46
Crawford	10490	99.95
Switzerland	9830	99.14
Martin	9810	99.54
Benton	8540	98.05
Warren	8435	99.59
Union	7005	99.64
Ohio	5965	99.50