ZIP code 59531: Joplin, MT
59531 is a ZIP code in Joplin, Montana, mainly in Liberty County. About 351 people live here.
- Population
- 351
- Median household income
- $67,891
- Typical home value
- $110,000ACS median value
- Median rent
- —gross, per month
- Median age
- 32.5
- Homeowners
- 83.7%of occupied homes
Shaded: ZIP code 59531's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 59531 details
| City | Joplin |
|---|---|
| State | Montana |
| County | Liberty County (also partly Hill 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 | 267.7 sq mi, plus 0.2 sq mi of water |
| Population density | 1 people per sq mi |
| Bachelor's degree or higher | 21% of adults 25+ |
| Average commute | 21.2 minutes |
| Center coordinates | 48.77664, -110.79463 |
ZIP codes near 59531
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 59530 | Inverness, MT | 12.9 mi | 141 |
| 59540 | Rudyard, MT | 15.9 mi | 430 |
| 59522 | Chester, MT | 17.3 mi | 1,315 |
| 59528 | Hingham, MT | 19.8 mi | 249 |
| 59545 | Whitlash, MT | 22.3 mi | 55 |
| 59525 | Gildford, MT | 26.0 mi | 473 |
| 59444 | Galata, MT | 28.1 mi | 222 |
| 59461 | Lothair, MT | 28.4 mi | 23 |
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 59531?
A typical home in ZIP code 59531 is worth about $110,000 (ACS median value). The median household here earns $67,891 a year. See what buying here would cost per month, with Montana average taxes and insurance filled in.
Monthly payment for a $110,000 homeWhat can a $67,891 income afford?Rental property numbers
About ZIP code 59531
What city is ZIP code 59531?
ZIP code 59531 is in Joplin, MT, in Liberty County.
What county is ZIP code 59531 in?
59531 is mainly in Liberty County, Montana, and partly in Hill County.
What is the population of ZIP code 59531?
About 351 people live in ZIP code 59531, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 59531 in?
59531 is in Mountain Time (UTC−7). It observes daylight saving time.