Slope County, North Dakota Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 53rd-largest in North Dakota
The population of Slope County, North Dakota is 795 as of the 2023 American Community Survey, making it the 53rd-largest county in North Dakota. The median household income is $62,500, the median home value is $121,300, and the median age is 54.2.
The population of Slope County has declined 9.8% since 2010 (732 → 660), a -0.74% annualized rate.
795
Population
-0.74%
Annual growth
1
People / sq mi
$62,500
Median Income
$121,300
Median Home Value
Slope County covers 1,215 sq mi of land at 0.7 people per square mile.
About Slope County, ND
Slope County stands apart on settlement density — it is among the most sparsely settled of US counties, at roughly 1 people per square mile. With 795 residents, Slope County is a county in North Dakota.
Household earnings are middling, with a median of $62,500 — below the US median of $78,538. Poverty runs at 9.7%, below the national 12.4%. Property is affordable here, the median home worth $121,300, with typical rent around $719.
Roughly 22.8% of adults have a bachelor’s, below the national 35.0%. About 11.5% of workers primarily work from home, below the national 14.0%, and the average commute runs about 19 minutes each way.
Slope County Population History (2010-2024)
The county of Slope County had a population of 732 in 2010 and 660 in 2024, a -9.8% growth over 14 years. The peak was 784 in 2016. Average annual growth rate: -0.70%.
660
Population (2024)
732
Population (2010)
784
Peak (2016)
-0.70%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 732 |
| 2011 | 728 |
| 2012 | 769 |
| 2013 | 773 |
| 2014 | 781 |
| 2015 | 783 |
| 2016 | 784 |
| 2017 | 769 |
| 2018 | 766 |
| 2019 | 754 |
| 2020 | 702 |
| 2021 | 695 |
| 2022 | 684 |
| 2023 | 679 |
| 2024 | 660 |
Race & Ethnicity
| White | 93.8% |
| Black or African American | 0.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 5.2% |
| Two or More Races | 0.0% |
Age & Sex
54.2
Median Age
45.7%
Female
54.3%
Male
27.5%
Age 65+
Age Distribution
Children (under 15): 14.5% · Seniors (65+): 27.5%
Income & Poverty
| Median household income | $62,500$-13,449 vs state |
| Mean household income | $88,575 |
| Per-capita income | $44,034 |
| Poverty rate | 9.7%+3.5% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 59.0% |
Top Industries by Employment
The largest employment sector in Slope County is agriculture, accounting for 51.0% of workers.
How residents commute
0.0%
Drive alone
20.4%
Carpool
59.9%
Public transit
11.5%
Work from home
19.4 min
Avg commute
Housing
$121,300$-119,800 vs state
Median home value
$719
Median rent
87.4%
Homeownership rate
458
Total housing units
74.2%
Occupied
25.8%
Vacant
12.6%
Renter-occupied
Social & access
97.1%
With health insurance
88.8%
With broadband internet
29.4%
Foreign-born
4.0%
Veterans (18+)
15.3%
With a disability
97.8%
Speak language other than English at home
Education
91.3%
High School+
22.8%
Bachelor's+
Largest cities in North Dakota
Other counties in North Dakota
Part of North Dakota
Metro areas in North Dakota
County rankings
Frequently Asked Questions
Slope County, North Dakota has a population of 795 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 53rd-largest county in North Dakota. Population density is 1 people per square mile.
The population of Slope County has declined 9.8% since 2010 (732 → 660), a -0.74% annualized rate.
The median household income in Slope County, North Dakota is $62,500, with mean (average) household income of $88,575 and per-capita income of $44,034. 9.7% of residents live below the federal poverty level.
In Slope County, the largest racial and ethnic groups are White (93.8%), Hispanic or Latino (5.2%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Slope County, North Dakota is 54.2 years. Residents are 45.7% female and 54.3% male.
The median home value in Slope County is $121,300 and median monthly rent is $719. 87.4% of occupied housing units are owner-occupied. The county has 458 total housing units, 25.8% of which are vacant.
The largest employment sector in Slope County, North Dakota is agriculture, forestry, fishing, and mining, employing 51.0% of workers. The unemployment rate is 3.4%.
Fargo is among the largest cities associated with Slope County, North Dakota, with a population of 129,064.
Slope County, ND Climate
Slope County, ND has an average annual temperature of 6.8°C (44°F) and receives about 389 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
6.8°C
Avg Temp
389
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -9° / 15° | 10 mm |
| February | -5° / 22° | 8 mm |
| March | 0° / 32° | 15 mm |
| April | 7° / 44° | 36 mm |
| May | 13° / 56° | 66 mm |
| June | 19° / 65° | 85 mm |
| July | 22° / 72° | 52 mm |
| August | 22° / 71° | 36 mm |
| September | 15° / 59° | 37 mm |
| October | 8° / 46° | 23 mm |
| November | -1° / 30° | 11 mm |
| December | -7° / 19° | 10 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Slope County, ND
The most comfortable months to visit Slope County, ND are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -15°C low). June is usually the wettest month.
Where to stay near Slope County
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Population, race, income, age, and trends across North Dakota
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.