Foster County
Foster County has roughly average household income, with a median household income of $87,831. Population has declined 11% since 2000. Median home value has roughly tripled since 2000, reaching $167,500. It ranks in the top 5% of US counties for household income.
Population & growth
PEP 2025 EST:3,212 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 9 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Foster County
Compare Foster County to nearby counties
How many people live in Foster County, North Dakota?
Foster County, North Dakota has about 3,358 residents according to the 2024 American Community Survey.
What is the median household income in Foster County, North Dakota?
The typical household in Foster County, North Dakota earns about $87,831 a year. Half of households make more than that, and half make less.
Is Foster County, North Dakota expensive?
In Foster County, North Dakota, the median home is worth about $167,500, and the typical rent is about $780 a month.
How educated are people in Foster County, North Dakota?
About 28.5% of adults age 25 and over in Foster County, North Dakota hold a bachelor's degree or higher.
What is the poverty rate in Foster County, North Dakota?
About 8.8% of people in Foster County, North Dakota live below the federal poverty line.
Has Foster County, North Dakota grown since 1990?
Yes, Foster County, North Dakota has shrunk since 1990. The population has lost about 625 residents, a change of about -16 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024