Home > MT > Lewis and Clark County > East Helena > Zip 59635

Zip Code 59635 — East Helena, MT

59635 is a ZIP Code associated with East Helena, MT, located within Lewis and Clark. The postal region supports an estimated population of 8,292 residents across Data Pending housing units, with a population density of 40.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (46.554600, -111.817490)

Data MetricLocal Statistic
Postal / Zip Code59635
Primary CityEast Helena
State / ProvinceMT
CountyLewis and Clark
Total Population8,292
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density40.3 people/sq mi
TimezoneAmerica/Denver

How 59635 Compares

MetricZIP 59635Lewis and Clark CountyMT State Average
Population8,29273,9281,117,606
Median IncomeData PendingN/AN/A
Population Density40.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 59647Winston9.9 mi358N/A
Zip 59623Helena10.9 miN/AN/A
Zip 59625Helena11.0 mi663N/A
Zip 59634Clancy12.3 mi5,521N/A
Zip 59602Helena13.2 mi30,754N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →