Granite County, Montana
Granite County, Montana, has 3,658 residents (July 2025 estimate). Its county seat is Philipsburg. It uses Mountain Time and covers 1,727 sq mi (4,473 km²) of land.
- Resident population, July 2025
- 3,658
- Land area
- 1,727 sq mi (4,473 km²)
- County seat or government
- Philipsburg
- Time zone
- Mountain TimeUTC-07:00 in January; UTC-06:00 in July
- Median household income
- $59,265 ± $11,108
- Median home value
- $352,700 ± $27,252
- Median rent, with utilities
- $675 ± $145
- Homes lived in by their owners
- 77.9% ± 5.3 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Missoula, MT metro area
- Water area
- 5.62 sq mi (14.5 km²)
- State
- Montana
- County code (FIPS)
- 30039
- Coordinates (central point)
- 46.395955, -113.427356
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 Granite 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
5 ZIP Code areas overlap Granite 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
Granite 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 Granite County, largest first
- Philipsburg K-12 Schools1,923 people
- Drummond High School District1,539 people
- Drummond Elementary School District1,170 people
- Hall Elementary School District369 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.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Philipsburg, Montana (town)754 people
- Drummond, Montana (town)277 people
- Maxville, Montana (CDP)203 people
- Hall, Montana (CDP)64 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Deer Lodge County, Montana25 mi southeast
- Powell County, Montana39 mi northeast
- Ravalli County, Montana39 mi southwest
- Missoula County, Montana49 mi northwest
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.