North Dakota Citizen Population By County in 2018 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2018, the citizen population for North Dakota was 734,655 and represented 97.67% of the total North Dakota population.

Among all North Dakota counties, Cass had the highest citizen population (166.70K), followed by Burleigh (92.60K), and Grand Forks (68.00K).

In terms of percentages, Golden Valley had the highest percentage of its population being citizens (100.00%), followed by Oliver (100.00%), and Slope (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:
North Dakota Citizen Voting-age Population By County in 2018

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

See this for other years:

North Dakota Citizen Population By County in 2018

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County	Citizen Population	% of County Population
Cass	166700	95.70
Burleigh	92600	98.79
Grand Forks	68000	96.59
Ward	66920	96.94
Williams	33025	96.96
Morton	30395	99.51
Stark	30160	97.68
Stutsman	20755	98.53
Richland	16200	99.45
Rolette	14595	99.93
McKenzie	12525	99.92
Ramsey	11410	98.75
Barnes	10690	98.66
Walsh	10510	97.32
Mountrail	9985	98.37
McLean	9565	99.53
Mercer	8505	99.24
Traill	7940	99.00
Pembina	6900	98.36
Benson	6875	99.86
Bottineau	6515	98.86
McHenry	5895	99.49
Ransom	5265	98.23
Dickey	4880	98.19
Sioux	4410	99.89
Dunn	4325	98.63
Pierce	4170	99.05
LaMoure	4065	99.15
Wells	4050	99.88
Cavalier	3805	99.48
Sargent	3785	97.43
Emmons	3325	99.25
Foster	3260	99.09
Bowman	3180	99.53
Nelson	2870	98.29
McIntosh	2620	98.68
Hettinger	2555	99.22
Renville	2490	99.80
Kidder	2445	99.39
Grant	2375	99.79
Divide	2320	97.89
Eddy	2305	99.57
Adams	2275	96.81
Griggs	2260	99.78
Burke	2185	98.65
Towner	2165	96.44
Logan	1915	99.48
Steele	1910	100.00
Golden Valley	1880	100.00
Oliver	1835	100.00
Sheridan	1400	99.64
Billings	930	98.41
Slope	705	100.00