Data / Rankings / Population density / Counties in North Dakota

Counties in North Dakota by population density

Cass County had the highest population density of 53 counties in 2020, at 40.4 inhabitants per km². Slope County had the lowest, at 0.2 inhabitants per km². The median was 1.4 inhabitants per km² and the figure for North Dakota was 4.4 inhabitants per km². Source: the U.S. Census Bureau.

Highest40.4Cass County
Lowest0.2Slope County
Median1.453 counties
North Dakota4.4History

All counties, 2020

CSVChart (SVG)

Cass CountyCass County: 40.4 inhabitants per km²40.4Burleigh CountyBurleigh County: 23.3 inhabitants per km²23.3Grand Forks CountyGrand Forks County: 19.7 inhabitants per km²19.7Ward CountyWard County: 13.4 inhabitants per km²13.4Stark CountyStark County: 9.8 inhabitants per km²9.8Williams CountyWilliams County: 7.7 inhabitants per km²7.7Morton CountyMorton County: 6.7 inhabitants per km²6.7Rolette CountyRolette County: 5.2 inhabitants per km²5.2Richland CountyRichland County: 4.4 inhabitants per km²4.4Ramsey CountyRamsey County: 3.8 inhabitants per km²3.8Stutsman CountyStutsman County: 3.7 inhabitants per km²3.7Traill CountyTraill County: 3.6 inhabitants per km²3.6Walsh CountyWalsh County: 3.2 inhabitants per km²3.2Mercer CountyMercer County: 3.1 inhabitants per km²3.1Barnes CountyBarnes County: 2.8 inhabitants per km²2.8Ransom CountyRansom County: 2.6 inhabitants per km²2.6Pembina CountyPembina County: 2.4 inhabitants per km²2.4Mountrail CountyMountrail County: 2.1 inhabitants per km²2.1McKenzie CountyMcKenzie County: 2.1 inhabitants per km²2.1Foster CountyFoster County: 2.1 inhabitants per km²2.1McLean CountyMcLean County: 1.8 inhabitants per km²1.8Sargent CountySargent County: 1.7 inhabitants per km²1.7Dickey CountyDickey County: 1.7 inhabitants per km²1.7Benson CountyBenson County: 1.7 inhabitants per km²1.7Pierce CountyPierce County: 1.5 inhabitants per km²1.5Bottineau CountyBottineau County: 1.5 inhabitants per km²1.5Eddy CountyEddy County: 1.4 inhabitants per km²1.4LaMoure CountyLaMoure County: 1.4 inhabitants per km²1.4Sioux CountySioux County: 1.4 inhabitants per km²1.4Griggs CountyGriggs County: 1.3 inhabitants per km²1.3Wells CountyWells County: 1.2 inhabitants per km²1.2Nelson CountyNelson County: 1.2 inhabitants per km²1.2McHenry CountyMcHenry County: 1.1 inhabitants per km²1.1Oliver CountyOliver County: 1 inhabitants per km²1Renville CountyRenville County: 1 inhabitants per km²1McIntosh CountyMcIntosh County: 1 inhabitants per km²1Bowman CountyBowman County: 1 inhabitants per km²1Steele CountySteele County: 1 inhabitants per km²1Cavalier CountyCavalier County: 1 inhabitants per km²1Adams CountyAdams County: 0.9 inhabitants per km²0.9Hettinger CountyHettinger County: 0.8 inhabitants per km²0.8Emmons CountyEmmons County: 0.8 inhabitants per km²0.8Towner CountyTowner County: 0.8 inhabitants per km²0.8Dunn CountyDunn County: 0.8 inhabitants per km²0.8Burke CountyBurke County: 0.8 inhabitants per km²0.8Logan CountyLogan County: 0.7 inhabitants per km²0.7Kidder CountyKidder County: 0.7 inhabitants per km²0.7Divide CountyDivide County: 0.7 inhabitants per km²0.7Golden Valley CountyGolden Valley County: 0.7 inhabitants per km²0.7Grant CountyGrant County: 0.5 inhabitants per km²0.5Sheridan CountySheridan County: 0.5 inhabitants per km²0.5Billings CountyBillings County: 0.3 inhabitants per km²0.3Slope CountySlope County: 0.2 inhabitants per km²0.2
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2020
inhabitants per km²
1Cass County40.4
2Burleigh County23.3
3Grand Forks County19.7
4Ward County13.4
5Stark County9.8
6Williams County7.7
7Morton County6.7
8Rolette County5.2
9Richland County4.4
10Ramsey County3.8
11Stutsman County3.7
12Traill County3.6
13Walsh County3.2
14Mercer County3.1
15Barnes County2.8
16Ransom County2.6
17Pembina County2.4
18Mountrail County2.1
19McKenzie County2.1
20Foster County2.1
21McLean County1.8
22Sargent County1.7
23Dickey County1.7
24Benson County1.7
25Pierce County1.5
26Bottineau County1.5
27Eddy County1.4
28LaMoure County1.4
29Sioux County1.4
30Griggs County1.3
31Wells County1.2
32Nelson County1.2
33McHenry County1.1
34Oliver County1
34Renville County1
36McIntosh County1
37Bowman County1
38Steele County1
39Cavalier County1
40Adams County0.9
41Hettinger County0.8
42Emmons County0.8
43Towner County0.8
44Dunn County0.8
45Burke County0.8
46Logan County0.7
47Kidder County0.7
48Divide County0.7
49Golden Valley County0.7
50Grant County0.5
51Sheridan County0.5
52Billings County0.3
53Slope County0.2

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

Which county has the highest population density?

Cass County, with 40.4 inhabitants per km² in 2020, according to the U.S. Census Bureau.

Which county has the lowest population density?

Slope County, with 0.2 inhabitants per km² in 2020.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in North Dakota: more rankings