Zip Code 59873 — Thompson Falls, MT
59873 is a ZIP Code associated with Thompson Falls, MT, located within Sanders. 59873 ranks #2 out of 9 ZIP codes in Sanders County by population (and #69 out of 369 in MT). The area supports an estimated population of 2,920 residents across Data Pending housing units, with a population density of 1.5 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (47.697200, -115.273570)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 59873 |
| Primary City | Thompson Falls |
| State / Province | MT |
| County | Sanders |
| Total Population | 2,920 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1.5 people/sq mi |
| Timezone | America/Denver |
How 59873 Compares
| Metric | ZIP 59873 | Sanders County | MT State Average |
|---|
| Population | 2,920 | 13,266 (Total) | 1,117,606 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 1.5 /sq mi | -- | -- |
| County Pop Rank | #2 of 9 | -- | -- |
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 →