Nebraska Population By County in 2021 (ACS-5Yrs)

Updated on February 28, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the total population of Nebraska was 1.95M. Among all Nebraska counties, Douglas was the most populated county (578.77K), followed by Lancaster (320.30K), and then Sarpy (188.46K).

On the other hand, the least populated counties were: Blaine (346), Arthur (472), and McPherson (475).

The chart and table below shows the population of each county and the percentage of Nebraska population in each county.

You can see similar information for other states and by state for the United States.

Related Topics: Nebraska ACS-5Yrs Estimates, 2021 Topic List.

Data Source: US Census - ACS 5-Year Estimates, 2021 Census.

Nebraska Population By County in 2021

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County	Population	% of State Population
Adams	31284	1.60
Antelope	6310	0.32
Arthur	472	0.02
Banner	605	0.03
Blaine	346	0.02
Boone	5413	0.28
Box Butte	10821	0.56
Boyd	1812	0.09
Brown	2752	0.14
Buffalo	49840	2.55
Burt	6705	0.34
Butler	8354	0.43
Cass	26546	1.36
Cedar	8401	0.43
Chase	3694	0.19
Cherry	5505	0.28
Cheyenne	9575	0.49
Clay	6104	0.31
Colfax	10608	0.54
Cuming	9035	0.46
Custer	10625	0.54
Dakota	21284	1.09
Dawes	8383	0.43
Dawson	24031	1.23
Deuel	1878	0.10
Dixon	5632	0.29
Dodge	37249	1.91
Douglas	578771	29.66
Dundy	1900	0.10
Fillmore	5561	0.28
Franklin	2914	0.15
Frontier	2512	0.13
Furnas	4655	0.24
Gage	21706	1.11
Garden	1726	0.09
Garfield	1889	0.10
Gosper	1811	0.09
Grant	718	0.04
Greeley	2219	0.11
Hall	62616	3.21
Hamilton	9376	0.48
Harlan	3216	0.17
Hayes	891	0.05
Hitchcock	2630	0.14
Holt	10175	0.52
Hooker	714	0.04
Howard	6461	0.33
Jefferson	7213	0.37
Johnson	5298	0.27
Kearney	6639	0.34
Keith	8312	0.43
Keya Paha	946	0.05
Kimball	3583	0.18
Knox	8434	0.43
Lancaster	320301	16.41
Lincoln	34906	1.79
Logan	865	0.04
Loup	665	0.03
McPherson	475	0.02
Madison	35553	1.82
Merrick	7687	0.39
Morrill	4595	0.24
Nance	3389	0.17
Nemaha	7025	0.36
Nuckolls	4125	0.21
Otoe	15916	0.82
Pawnee	2564	0.13
Perkins	2865	0.15
Phelps	8972	0.46
Pierce	7266	0.37
Platte	34123	1.75
Polk	5223	0.27
Red Willow	10724	0.55
Richardson	7893	0.40
Rock	1321	0.07
Saline	14395	0.74
Sarpy	188464	9.66
Saunders	22008	1.13
Scotts Bluff	36229	1.86
Seward	17605	0.90
Sheridan	5150	0.26
Sherman	2986	0.15
Sioux	1081	0.06
Stanton	5877	0.30
Thayer	5053	0.26
Thomas	562	0.03
Thurston	6806	0.35
Valley	4031	0.21
Washington	20699	1.06
Wayne	9590	0.49
Webster	3442	0.18
Wheeler	735	0.04
York	14164	0.73