US Citizen Population By State in 2015 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the US citizen population was 294,245,830 and represented 92.96% of the total US population.

Among all US states and DC, California had the highest citizen population (33.07M), followed by Texas (23.66M), and Florida (17.81M).

In terms of percentages, West Virginia had the highest percentage of its population being citizens (99.22%), followed by Montana (99.03%), and Mississippi (98.49%).

The chart and table below shows the citizen population of each state and the percentage of each state's population that were citizens.

See this for other years:
US Citizen Population By State in 2015
< 500K
500K - 1M
1M - 2M
2M - 5M
5M - 10M
Over 10M
US Citizen Population By State in 2015
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State Citizen Population % of State Population
California 33074020 86.08
Texas 23662750 89.16
Florida 17813580 90.67
New York 17625645 89.59
Pennsylvania 12394530 96.99
Illinois 11934020 92.70
Ohio 11338945 97.95
Michigan 9595890 96.92
Georgia 9418050 94.12
North Carolina 9345280 94.92
New Jersey 7999360 89.84
Virginia 7765925 94.06
Washington 6485515 92.84
Indiana 6367230 96.93
Tennessee 6298520 96.91
Massachusetts 6207045 92.57
Arizona 6100105 91.84
Missouri 5912040 97.79
Wisconsin 5588750 97.33
Maryland 5487335 92.53
Minnesota 5203975 96.03
Colorado 4962675 94.01
Alabama 4722095 97.75
South Carolina 4636155 97.04
Louisiana 4515610 97.63
Kentucky 4300935 97.81
Oregon 3706755 94.10
Oklahoma 3701735 96.16
Connecticut 3336145 92.85
Iowa 3001675 97.03
Mississippi 2943030 98.49
Arkansas 2862265 96.76
Kansas 2764550 95.56
Utah 2750120 94.72
Nevada 2504875 89.50
New Mexico 1951765 93.65
West Virginia 1836940 99.22
Nebraska 1790200 95.77
Idaho 1553615 96.11
Maine 1307980 98.41
Hawaii 1298755 92.35
New Hampshire 1288640 97.32
Montana 1004845 99.03
Rhode Island 985505 93.53
Delaware 882685 95.28
South Dakota 826710 98.05
Alaska 709045 96.68
North Dakota 707610 98.06
Vermont 615150 98.17
District of Columbia 592630 91.53
Wyoming 566615 97.75