ZIP code 59231: Saint Marie, MT
59231 is a ZIP code in Saint Marie, Montana, mainly in Valley County. About 306 people live here.
- Population
- 306
- Median household income
- $38,971
- Typical home value
- $18,800ACS median value
- Median rent
- —gross, per month
- Median age
- 37.9
- Homeowners
- 89.1%of occupied homes
Shaded: ZIP code 59231's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 59231 details
| City | Saint Marie |
|---|---|
| State | Montana |
| County | Valley County |
| Metro area | Not in a metro or micro area |
| Time zone | Mountain Time (UTC−7), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 0.6 sq mi |
| Population density | 546 people per sq mi |
| Bachelor's degree or higher | 23.1% of adults 25+ |
| Center coordinates | 48.40392, -106.54421 |
ZIP codes near 59231
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 59248 | Nashua, MT | 17.4 mi | 1,023 |
| 59244 | Larslan, MT | 18.5 mi | 63 |
| 59273 | Vandalia, MT | 19.5 mi | 15 |
| 59230 | Glasgow, MT | 22.2 mi | 4,606 |
| 59241 | Hinsdale, MT | 23.5 mi | 439 |
| 59225 | Frazer, MT | 28.1 mi | 639 |
| 59250 | Opheim, MT | 30.7 mi | 242 |
| 59240 | Glentana, MT | 33.3 mi | 22 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 59231?
A typical home in ZIP code 59231 is worth about $18,800 (ACS median value). The median household here earns $38,971 a year. See what buying here would cost per month, with Montana average taxes and insurance filled in.
Monthly payment for a $18,800 homeWhat can a $38,971 income afford?Rental property numbers
About ZIP code 59231
What city is ZIP code 59231?
ZIP code 59231 is in Saint Marie, MT, in Valley County.
What county is ZIP code 59231 in?
59231 is mainly in Valley County, Montana.
What is the population of ZIP code 59231?
About 306 people live in ZIP code 59231, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 59231 in?
59231 is in Mountain Time (UTC−7). It observes daylight saving time.