Data / Rankings / Population aged 18 to 64 / Counties in North Dakota

Counties in North Dakota by population aged 18 to 64

Grand Forks County had the highest population aged 18 to 64 of 53 counties in 2015, at 68.2%. McIntosh County had the lowest, at 51%. The median was 56.8% and the figure for North Dakota was 62.9%. Source: the U.S. Census Bureau.

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Highest68.2Grand Forks County
Lowest51McIntosh County
Median56.853 counties
North Dakota62.9History

Map of counties, 2015

Adams County: 55 %Barnes County: 59 %Benson County: 53.5 %Billings County: 62.7 %Bottineau County: 56.8 %Bowman County: 56.2 %Burke County: 58.1 %Burleigh County: 62.7 %Cass County: 66.9 %Cavalier County: 53.6 %Dickey County: 55.1 %Divide County: 56.9 %Dunn County: 61.9 %Eddy County: 55.5 %Emmons County: 51.6 %Foster County: 57.1 %Golden Valley County: 55.7 %Grand Forks County: 68.2 %Grant County: 53.4 %Griggs County: 53.4 %Hettinger County: 54.8 %Kidder County: 57.7 %LaMoure County: 54.3 %Logan County: 51.5 %McHenry County: 56.7 %McIntosh County: 51 %McKenzie County: 63.8 %McLean County: 56 %Mercer County: 60.3 %Morton County: 61.4 %Mountrail County: 62.9 %Nelson County: 52.5 %Oliver County: 57.6 %Pembina County: 57.1 %Pierce County: 55.4 %Ramsey County: 58.3 %Ransom County: 55.9 %Renville County: 57.6 %Richland County: 62.2 %Rolette County: 55.2 %Sargent County: 59.5 %Sheridan County: 54.5 %Sioux County: 54.8 %Slope County: 55.3 %Stark County: 63.7 %Steele County: 57.1 %Stutsman County: 61.7 %Towner County: 54.9 %Traill County: 58.3 %Walsh County: 56.5 %Ward County: 64.8 %Wells County: 53.7 %Williams County: 66.2 %
  • Under 54
  • 54 to 55
  • 55 to 57
  • 57 to 58
  • 58 to 62
  • 62 and over
%, 2015. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2015

Grand Forks County: 68.2 %Grand Forks County68.2Cass County: 66.9 %Cass County66.9Williams County: 66.2 %Williams County66.2Ward County: 64.8 %Ward County64.8McKenzie County: 63.8 %McKenzie County63.8Stark County: 63.7 %Stark County63.7Mountrail County: 62.9 %Mountrail County62.9Billings County: 62.7 %Billings County62.7Burleigh County: 62.7 %Burleigh County62.7Richland County: 62.2 %Richland County62.2Dunn County: 61.9 %Dunn County61.9Stutsman County: 61.7 %Stutsman County61.7Morton County: 61.4 %Morton County61.4Mercer County: 60.3 %Mercer County60.3Sargent County: 59.5 %Sargent County59.5Barnes County: 59 %Barnes County59Ramsey County: 58.3 %Ramsey County58.3Traill County: 58.3 %Traill County58.3Burke County: 58.1 %Burke County58.1Kidder County: 57.7 %Kidder County57.7Renville County: 57.6 %Renville County57.6Oliver County: 57.6 %Oliver County57.6Steele County: 57.1 %Steele County57.1Pembina County: 57.1 %Pembina County57.1Foster County: 57.1 %Foster County57.1Divide County: 56.9 %Divide County56.9Bottineau County: 56.8 %Bottineau County56.8McHenry County: 56.7 %McHenry County56.7Walsh County: 56.5 %Walsh County56.5Bowman County: 56.2 %Bowman County56.2McLean County: 56 %McLean County56Ransom County: 55.9 %Ransom County55.9Golden Valley County: 55.7 %Golden Valley County55.7Eddy County: 55.5 %Eddy County55.5Pierce County: 55.4 %Pierce County55.4Slope County: 55.3 %Slope County55.3Rolette County: 55.2 %Rolette County55.2Dickey County: 55.1 %Dickey County55.1Adams County: 55 %Adams County55Towner County: 54.9 %Towner County54.9Sioux County: 54.8 %Sioux County54.8Hettinger County: 54.8 %Hettinger County54.8Sheridan County: 54.5 %Sheridan County54.5LaMoure County: 54.3 %LaMoure County54.3Wells County: 53.7 %Wells County53.7Cavalier County: 53.6 %Cavalier County53.6Benson County: 53.5 %Benson County53.5Griggs County: 53.4 %Griggs County53.4Grant County: 53.4 %Grant County53.4Nelson County: 52.5 %Nelson County52.5Emmons County: 51.6 %Emmons County51.6Logan County: 51.5 %Logan County51.5McIntosh County: 51 %McIntosh County51Grand Forks County: 68.2 %Grand Forks County68.2Cass County: 66.9 %Cass County66.9Williams County: 66.2 %Williams County66.2Ward County: 64.8 %Ward County64.8McKenzie County: 63.8 %McKenzie County63.8Stark County: 63.7 %Stark County63.7Mountrail County: 62.9 %Mountrail County62.9Billings County: 62.7 %Billings County62.7Burleigh County: 62.7 %Burleigh County62.7Richland County: 62.2 %Richland County62.2Dunn County: 61.9 %Dunn County61.9Stutsman County: 61.7 %Stutsman County61.7Morton County: 61.4 %Morton County61.4Mercer County: 60.3 %Mercer County60.3Sargent County: 59.5 %Sargent County59.5Barnes County: 59 %Barnes County59Ramsey County: 58.3 %Ramsey County58.3Traill County: 58.3 %Traill County58.3Burke County: 58.1 %Burke County58.1Kidder County: 57.7 %Kidder County57.7Renville County: 57.6 %Renville County57.6Oliver County: 57.6 %Oliver County57.6Steele County: 57.1 %Steele County57.1Pembina County: 57.1 %Pembina County57.1Foster County: 57.1 %Foster County57.1Divide County: 56.9 %Divide County56.9Bottineau County: 56.8 %Bottineau County56.8McHenry County: 56.7 %McHenry County56.7Walsh County: 56.5 %Walsh County56.5Bowman County: 56.2 %Bowman County56.2McLean County: 56 %McLean County56Ransom County: 55.9 %Ransom County55.9Golden Valley County: 55.7 %Golden Valley County55.7Eddy County: 55.5 %Eddy County55.5Pierce County: 55.4 %Pierce County55.4Slope County: 55.3 %Slope County55.3Rolette County: 55.2 %Rolette County55.2Dickey County: 55.1 %Dickey County55.1Adams County: 55 %Adams County55Towner County: 54.9 %Towner County54.9Sioux County: 54.8 %Sioux County54.8Hettinger County: 54.8 %Hettinger County54.8Sheridan County: 54.5 %Sheridan County54.5LaMoure County: 54.3 %LaMoure County54.3Wells County: 53.7 %Wells County53.7Cavalier County: 53.6 %Cavalier County53.6Benson County: 53.5 %Benson County53.5Griggs County: 53.4 %Griggs County53.4Grant County: 53.4 %Grant County53.4Nelson County: 52.5 %Nelson County52.5Emmons County: 51.6 %Emmons County51.6Logan County: 51.5 %Logan County51.5McIntosh County: 51 %McIntosh County51
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Grand Forks County68.2-0.4 pts
2Cass County66.9-0.3 pts
3Williams County66.2-0.1 pts
4Ward County64.8-0.1 pts
5McKenzie County63.8+0.3 pts
6Stark County63.7+0.1 pts
7Mountrail County62.9-0.3 pts
8Billings County62.7+0.6 pts
9Burleigh County62.7-0.2 pts
10Richland County62.2-0.5 pts
11Dunn County61.9-0.8 pts
12Stutsman County61.7-0.4 pts
13Morton County61.4-0.2 pts
14Mercer County60.3-0.3 pts
15Sargent County59.5-0.2 pts
16Barnes County59-0.4 pts
17Ramsey County58.3-0.9 pts
18Traill County58.3-0.3 pts
19Burke County58.1-0.5 pts
20Kidder County57.7+0.3 pts
21Renville County57.6-0.6 pts
22Oliver County57.6-1.2 pts
23Steele County57.1-0.6 pts
24Pembina County57.1-0.6 pts
25Foster County57.1+0.8 pts
26Divide County56.9+0.5 pts
27Bottineau County56.8-0.6 pts
28McHenry County56.7-0.6 pts
29Walsh County56.5-0.3 pts
30Bowman County56.2+0.3 pts
31McLean County560 pts
32Ransom County55.9+0.3 pts
33Golden Valley County55.7-0.3 pts
34Eddy County55.5+0.8 pts
35Pierce County55.4-0.1 pts
36Slope County55.3-2.6 pts
37Rolette County55.2-0.4 pts
38Dickey County55.1-0.1 pts
39Adams County55+0.3 pts
40Towner County54.9-0.4 pts
41Sioux County54.8-0.6 pts
42Hettinger County54.8-0.3 pts
43Sheridan County54.5-0.5 pts
44LaMoure County54.3-0.4 pts
45Wells County53.7-0.2 pts
46Cavalier County53.6-0.6 pts
47Benson County53.5-0.1 pts
48Griggs County53.40 pts
49Grant County53.4-0.1 pts
50Nelson County52.5+0.1 pts
51Emmons County51.6-0.7 pts
52Logan County51.5-0.5 pts
53McIntosh County51+0.5 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in North Dakota by population aged 18 to 64, 2015) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in North Dakota by population aged 18 to 64, 2015. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/north-dakota-counties?period=2015. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in North Dakota by population aged 18 to 64, 2015. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/north-dakota-counties?period=2015.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in North Dakota by population aged 18 to 64, 2015 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/north-dakota-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_north_dakota_2015,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in North Dakota by population aged 18 to 64, 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/north-dakota-counties?period=2015. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in North Dakota by population aged 18 to 64, 2015
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/north-dakota-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/north-dakota-counties?period=2015.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Rank Counties in North Dakota by population aged 18 to 64 using official data, and cite the source.
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Questions

Which county has the highest population aged 18 to 64?

Grand Forks County, with 68.2% in 2015, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

McIntosh County, with 51% in 2015.

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, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in North Dakota: more rankings