Census place · GEOID 3035640 · Lewis and Clark County
Helena West Side, MT ZIP codes
3 ZIP/ZCTAs intersecting this Census place (CDP) in Lewis and Clark County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Helena West Side (GEOID 3035640). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 62,230 (3 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Helena West Side, MT

ZIP/ZCTA overlap with Helena West Side
Population overlap
Share of each ZIP/ZCTA’s population located within Helena West Side, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Helena West Side
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 59601 | Helena | Lewis and Clark County | 31,822 | $70,502 |
| 59602 | Helena | Lewis and Clark County | 30,379 | $87,841 |
| 59636 | Fort Harrison | Lewis and Clark County | 29 | — |