Zip Code 59448 — Heart Butte, MT
59448 is a ZIP Code associated with Heart Butte, MT, located within Pondera. 59448 ranks #3 out of 5 ZIP codes in Pondera County by population (and #167 out of 369 in MT). The area supports an estimated population of 638 residents across Data Pending housing units, with a population density of 3.2 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (48.257890, -112.867030)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 59448 |
| Primary City | Heart Butte |
| State / Province | MT |
| County | Pondera |
| Total Population | 638 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 3.2 people/sq mi |
| Timezone | America/Denver |
How 59448 Compares
| Metric | ZIP 59448 | Pondera County | MT State Average |
|---|
| Population | 638 | 6,155 (Total) | 1,117,606 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 3.2 /sq mi | -- | -- |
| County Pop Rank | #3 of 5 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →