ZIP code · Saint Ignatius · Montana · United States
ZIP code 59865 — Saint Ignatius
ZIP code 59865 serves Saint Ignatius, Montana.
- Postal code
- 59865Single source Value from one source, not cross-checked.
- City
- Saint Ignatius
- County
- Lake FIPS 30047
- State
- Montana
- Country
- United States
- Coordinates
- 47.3300, -114.0758 — precision precise (locality)
View on OpenStreetMap - Population
- 3,741 (ZCTA, ACS 5-year)
- Population density
- 23 / sq mi
- Land area
- 162.9 sq mi (421.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $55,213
- Per-capita income
- $26,469
- Median age
- 37.5
- Households
- 1,247
- Housing units
- 1,382
- Median home value
- $310,400
- Median gross rent
- $520 / month
- Congressional district
- MT-1 (119th Congress)
- USDA hardiness zone
- 6a (-10 to -5 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Denver (UTC−7 / UTC−6 DST)
- Area code
- 406Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 59865 with another ZIP · ZIPs within 25 miles · distance from 59865
Map of ZIP code 59865
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Feb (avg low 22°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 37 | 40 | 51 | 59 | 69 | 75 | 86 | 86 | 75 | 59 | 45 | 37 |
| Avg low °F | 23 | 22 | 28 | 34 | 41 | 47 | 52 | 51 | 44 | 35 | 28 | 23 |
| Precip in | 0.9 | 1.1 | 0.9 | 1.8 | 2.3 | 2.6 | 1.0 | 1.2 | 1.5 | 1.3 | 1.1 | 0.9 |
NOAA 1991–2020 climate normals from the nearest station: SAINT IGNATIUS (1.5 mi) · NOAA NCEI
Places in ZIP 59865
- 2 schools
- 1 doctors & dentists
- 1 pharmacies
- 1 supermarkets
- 3 restaurants & cafés
- 1 bars & pubs
- 2 parks
- 1 libraries
- 1 post offices
- 9 places of worship
- 1 banks
- 1 gas stations
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page