ZIP code · Glasgow · Montana · United States
ZIP code 59230 — Glasgow
ZIP code 59230 serves Glasgow, Montana.
- Postal code
- 59230Single source Value from one source, not cross-checked.
- City
- Glasgow
- County
- Valley FIPS 30105
- State
- Montana
- Country
- United States
- Coordinates
- 48.2034, -106.6094 — precision precise (locality)
View on OpenStreetMap - Population
- 4,515 (ZCTA, ACS 5-year)
- Population density
- 3 / sq mi
- Land area
- 1,496.9 sq mi (3,877 km²) (ZCTA, ACS 5-year)
- Median household income
- $72,161
- Per-capita income
- $34,360
- Median age
- 45.1
- Households
- 1,835
- Housing units
- 2,156
- Median home value
- $237,700
- Median gross rent
- $800 / month
- Congressional district
- MT-2 (119th Congress)
- USDA hardiness zone
- 4a (-30 to -25 °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 59230 with another ZIP · ZIPs within 25 miles · distance from 59230
Map of ZIP code 59230
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Jan (avg low 6°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 24 | 28 | 42 | 57 | 68 | 76 | 86 | 85 | 73 | 57 | 40 | 27 |
| Avg low °F | 6 | 9 | 21 | 33 | 43 | 53 | 59 | 57 | 47 | 34 | 21 | 10 |
| Precip in | 0.4 | 0.3 | 0.5 | 1.0 | 2.2 | 2.8 | 1.9 | 1.3 | 1.1 | 0.9 | 0.5 | 0.4 |
NOAA 1991–2020 climate normals from the nearest station: GLASGOW INTL AP (0.9 mi) · NOAA NCEI
Places in ZIP 59230
- 4 schools
- 2 hospitals & clinics
- 1 doctors & dentists
- 2 supermarkets
- 9 restaurants & cafés
- 3 bars & pubs
- 15 parks
- 5 playgrounds
- 1 gyms & sports centres
- 1 libraries
- 1 post offices
- 17 places of worship
- 5 banks
- 6 gas stations
- 3 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