Indiana Citizen Population By County in 2017 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2017, the citizen population for Indiana was 6,407,460 and represented 96.87% of the total Indiana population.

Among all Indiana counties, Marion had the highest citizen population (879.42K), followed by Lake (474.49K), and Allen (355.23K).

In terms of percentages, Union had the highest percentage of its population being citizens (99.93%), followed by Crawford (99.91%), and Fayette (99.87%).

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 2017

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

See this for other years:

Indiana Citizen Population By County in 2017

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County	Citizen Population	% of County Population
Marion	879415	93.56
Lake	474490	97.09
Allen	355230	96.60
Hamilton	297710	96.13
St. Joseph	258255	96.14
Elkhart	191120	94.18
Vanderburgh	178650	98.25
Tippecanoe	169500	91.09
Porter	164740	98.42
Hendricks	154825	97.89
Johnson	145715	97.56
Monroe	135790	94.02
Madison	128115	98.82
Delaware	114315	98.60
Clark	112895	98.26
LaPorte	109155	98.48
Vigo	105545	97.98
Howard	81625	98.99
Kosciusko	76595	97.30
Floyd	75490	98.71
Bartholomew	74215	91.60
Hancock	71910	98.81
Morgan	69105	99.38
Grant	67275	99.50
Wayne	66195	98.84
Boone	61735	97.97
Warrick	60775	98.69
Dearborn	49320	99.51
Henry	48480	99.65
Noble	46080	97.17
Marshall	45355	97.02
Lawrence	45280	99.15
Shelby	43505	98.12
DeKalb	42250	99.35
Jackson	42165	96.31
Dubois	41065	96.90
Harrison	39225	99.43
LaGrange	38195	98.64
Knox	37525	99.36
Montgomery	37385	97.64
Putnam	37080	98.76
Huntington	36195	99.11
Miami	35780	99.29
Cass	35665	93.24
Adams	34865	99.56
Steuben	33855	98.24
Whitley	33365	99.66
Gibson	33215	98.87
Jasper	32900	98.36
Greene	32365	99.80
Daviess	32105	97.96
Jefferson	32105	99.41
Wabash	31595	99.20
Clinton	30570	94.19
Ripley	28150	99.23
Washington	27770	99.87
Jennings	27645	99.30
Wells	27625	99.26
Clay	26320	99.79
Decatur	26305	99.34
Posey	25520	99.69
Randolph	24880	98.71
Scott	23550	99.28
White	23470	96.66
Fayette	23395	99.87
Starke	22800	99.28
Franklin	22740	99.58
Jay	20915	99.10
Owen	20870	99.59
Sullivan	20870	99.86
Spencer	20470	99.32
Fulton	19920	98.15
Carroll	19705	98.55
Orange	19490	99.31
Perry	19140	99.53
Parke	16950	99.36
Rush	16725	99.76
Fountain	16525	99.43
Vermillion	15560	99.46
Tipton	15180	99.28
Brown	14950	99.63
Newton	13620	96.91
Pulaski	12695	99.49
Pike	12430	99.68
Blackford	12130	99.30
Crawford	10590	99.91
Switzerland	10560	99.48
Martin	10205	99.85
Benton	8575	98.73
Warren	8235	99.58
Union	7220	99.93
Ohio	5895	99.75