Liberty County, Montana ZIP codes
5 ZIP codes are in Liberty County, plus 2 that cross in from neighboring counties.
- ZIP codes
- 5
- Population in these ZIPs
- 2,136
- Avg. median income
- $57,100population-weighted
- Cities & towns
- 5
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ZIP codes in Liberty County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 59456 | Ledger | 392 | $41,123 | — |
| 59461 | Lothair | 23 | — | — |
| 59522 | Chester | 1,315 | $57,212 | $205,300 |
| 59531 | Joplin | 351 | $67,891 | $110,000 |
| 59545 | Whitlash | 55 | $100,781 | $291,700 |
ZIP codes partly in Liberty County
These ZIP codes are mostly in a neighboring county but cover part of Liberty County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 59416 | Brady | Pondera County | 425 | $89,167 | $323,800 |
| 59444 | Galata | Toole County | 222 | $44,250 | — |
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
Cities and towns in Liberty County
Nearby counties
Frequently asked questions
How many ZIP codes are in Liberty County, Montana?
5 ZIP codes are mainly in Liberty County, and 2 more ZIP codes from neighboring areas reach partly into it.
What cities are in Liberty County?
ZIP codes in Liberty County use the city names Chester, Joplin, Ledger, Lothair and Whitlash.