Lake County, Montana

Lake County, Montana, has 33,392 residents (July 2025 estimate). Its county seat is Polson. It uses Mountain Time and covers 1,491 sq mi (3,860 km²) of land.

Lake County in Montana

Lake County and its neighbors (simplified outlines). Open in OpenStreetMap ↗

Resident population, July 2025: 33,392
Land area: 1,491 sq mi (3,860 km²)
County seat or government: Polson
Time zone: Mountain TimeUTC-07:00 in January; UTC-06:00 in July
Median household income: $63,360 ± $3,063
Median home value: $421,800 ± $19,570
Median rent, with utilities: $901 ± $42
Homes lived in by their owners: 75% ± 1.6 points
County type: County
Metro or micro area: Outside any metro or micro areaNext to: Kalispell, MT micro area and Missoula, MT metro area
Water area: 163 sq mi (423 km²)
State: Montana
County code (FIPS): 30047
Coordinates (central point): 47.642901, -114.083687

Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Lake County

Time zone	Local time and UTC offset	Next clock change
Mountain TimeAmerica/Denver	UTC-07:00 in January; UTC-06:00 in July. Enable JavaScript for the live clock.	Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

5986011,897 people
599119,493 people
598647,301 people
598653,635 people
598212,994 people
599222,337 people
598241,526 people
598451,223 people
59910692 people
59915452 people
59855419 people
59914345 people

All 15

59931335 people
59929230 people
59863146 people

15 ZIP Code areas overlap Lake County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Lake County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

School districts in Lake County, largest first

Missoula High School District111,121 people
Polson High School District13,223 people
Polson Elementary School District11,987 people
Bigfork High School District9,480 people
Ronan Elementary School District8,810 people
Ronan High School District8,810 people
Bigfork Elementary School District7,146 people
St. Ignatius K-12 Schools3,813 people
Arlee Elementary School District3,345 people
Arlee High School District3,345 people
Charlo High School District1,932 people
Hot Springs K-121,489 people

All 16

Charlo Elementary School District1,356 people
Upper West Shore Elementary School District949 people
Swan Lake-Salmon Elementary School District392 people
Valley View Elementary School District287 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Tribal areas in Lake County, largest first

Flathead Reservation32,167 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

All 24

Bordering areas, nearest first

Distances are straight lines between map points.

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.