ZIP code · Garryowen · Montana · United States
ZIP code 59031 — Garryowen
ZIP code 59031 serves Garryowen, Montana.
- Postal code
- 59031Single source Value from one source, not cross-checked.
- City
- Garryowen
- County
- Big Horn FIPS 30003
- State
- Montana
- Country
- United States
- Coordinates
- 45.5187, -107.4817 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 618 (ZCTA, ACS 5-year)
- Population density
- 6 / sq mi
- Land area
- 104.7 sq mi (271.2 km²) (ZCTA, ACS 5-year)
- Median household income
- $143,750
- Per-capita income
- $22,429
- Median age
- 17.6
- Households
- 77
- Housing units
- 102
- Median home value
- $118,800
- Congressional district
- MT-2 (119th Congress)
- USDA hardiness zone
- 4b (-25 to -20 °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
- 406 (from the nearest rate centre)Telephone 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 59031 with another ZIP · ZIPs within 25 miles · distance from 59031
Map of ZIP code 59031
Climate — monthly normals
Warmest month Jul (avg high 91°F), coldest Jan (avg low 11°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 36 | 41 | 53 | 62 | 71 | 81 | 91 | 90 | 79 | 64 | 48 | 38 |
| Avg low °F | 11 | 15 | 23 | 32 | 41 | 50 | 56 | 53 | 44 | 33 | 22 | 13 |
| Precip in | 0.5 | 0.6 | 0.9 | 1.5 | 2.5 | 1.9 | 1.3 | 0.9 | 1.4 | 1.4 | 0.5 | 0.5 |
NOAA 1991–2020 climate normals from the nearest station: HARDIN (16.0 mi) · NOAA NCEI
Places in ZIP 59031
- 2 restaurants & cafés
- 1 parks
- 1 post offices
- 1 gas 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