Lake County
Lake County has lower-than-average household income, with a median household income of $63,360. Population has grown 23% since 2000. Median home value has roughly tripled since 2000, reaching $421,800. With a median age of 44.3, the population is older than the US median of 38.9.
Population & growth
PEP 2025 EST:33,392 residents (Census Bureau Vintage 2025, released March 2026)
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+ 30 more ancestry groups with data
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How many people live in Lake County, Montana?
Lake County, Montana has about 32,561 residents according to the 2024 American Community Survey.
What is the median household income in Lake County, Montana?
The typical household in Lake County, Montana earns about $63,360 a year. Half of households make more than that, and half make less.
Is Lake County, Montana expensive?
In Lake County, Montana, the median home is worth about $421,800, and the typical rent is about $901 a month.
How educated are people in Lake County, Montana?
About 31.5% of adults age 25 and over in Lake County, Montana hold a bachelor's degree or higher.
What is the poverty rate in Lake County, Montana?
About 17.2% of people in Lake County, Montana live below the federal poverty line.
Has Lake County, Montana grown since 1990?
Yes, Lake County, Montana has grown since 1990. The population has added about 11,520 residents, a change of about 55 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024