ZIP code · Lewistown · Montana · United States
ZIP code 59457 — Lewistown
ZIP code 59457 serves Lewistown, Montana.
- Postal code
- 59457Single source Value from one source, not cross-checked.
- City
- Lewistown
- County
- Fergus FIPS 30027
- State
- Montana
- Country
- United States
- Coordinates
- 47.0563, -109.4203 — precision precise (locality)
View on OpenStreetMap - Population
- 9,215 (ZCTA, ACS 5-year)
- Population density
- 9 / sq mi
- Land area
- 995.6 sq mi (2,578.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $59,682
- Per-capita income
- $35,013
- Median age
- 46.3
- Households
- 4,203
- Housing units
- 4,710
- Median home value
- $205,500
- Median gross rent
- $877 / month
- 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
- 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 59457 with another ZIP · ZIPs within 25 miles · distance from 59457
Map of ZIP code 59457
Climate — monthly normals
Warmest month Aug (avg high 87°F), coldest Jan (avg low 15°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 40 | 40 | 50 | 58 | 66 | 74 | 87 | 87 | 75 | 57 | 45 | 39 |
| Avg low °F | 15 | 16 | 24 | 32 | 40 | 48 | 54 | 52 | 44 | 34 | 23 | 17 |
NOAA 1991–2020 climate normals from the nearest station: LEWISTOWN (1.1 mi) · NOAA NCEI
Places in ZIP 59457
- 13 schools
- 4 hospitals & clinics
- 1 doctors & dentists
- 2 supermarkets
- 15 restaurants & cafés
- 3 bars & pubs
- 15 parks
- 6 playgrounds
- 3 gyms & sports centres
- 1 libraries
- 1 post offices
- 21 places of worship
- 5 banks
- 3 gas stations
- 4 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