ZIP code · East Helena · Montana · United States
ZIP code 59635 — East Helena
ZIP code 59635 serves East Helena, Montana.
- Postal code
- 59635Single source Value from one source, not cross-checked.
- City
- East Helena
- County
- Lewis and Clark
- State
- Montana
- Country
- United States
- Coordinates
- 46.5973, -111.9051 — precision precise (locality)
View on OpenStreetMap - Population
- 8,382 (ZCTA, ACS 5-year)
- Median household income
- $73,664
- Median age
- 42.1
- 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.
Nearby localities
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). Data generated on 2026-08-21. Methodology · Report an error on this page