ZIP code · Cascade · Montana · United States
ZIP code 59421 — Cascade
ZIP code 59421 serves Cascade, Montana.
- Postal code
- 59421Single source Value from one source, not cross-checked.
- City
- Cascade
- County
- Cascade FIPS 30013
- State
- Montana
- Country
- United States
- Coordinates
- 47.2912, -111.7223 — precision precise (locality)
View on OpenStreetMap - Population
- 2,039 (ZCTA, ACS 5-year)
- Population density
- 3 / sq mi
- Land area
- 746.6 sq mi (1,933.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $71,688
- Per-capita income
- $54,359
- Median age
- 51.2
- Households
- 907
- Housing units
- 1,439
- Median home value
- $337,200
- Median gross rent
- $1,014 / 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 59421 with another ZIP · ZIPs within 25 miles · distance from 59421
Map of ZIP code 59421
Climate — monthly normals
Warmest month Jul (avg high 86°F), coldest Feb (avg low 19°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 40 | 49 | 58 | 67 | 75 | 86 | 85 | 74 | 60 | 47 | 38 |
| Avg low °F | 19 | 19 | 25 | 33 | 40 | 47 | 52 | 50 | 44 | 36 | 27 | 20 |
| Precip in | 0.5 | 0.7 | 0.8 | 2.2 | 3.0 | 2.9 | 1.2 | 1.2 | 1.6 | 1.4 | 0.7 | 0.7 |
NOAA 1991–2020 climate normals from the nearest station: CASCADE 5 S (5.0 mi) · NOAA NCEI
Places in ZIP 59421
- 2 schools
- 1 supermarkets
- 2 restaurants & cafés
- 1 bars & pubs
- 7 parks
- 1 libraries
- 1 post offices
- 3 places of worship
- 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