Find the last 4 digits (ZIP+4) for an address in 59620

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ZIP Code 59620 – Helena, MT

Helena, Montana · Lewis and Clark County · Mountain time

ZIP code59620
CityHelena
StateMontana
CountyLewis and Clark County
Area code406
PopulationNot published (no Census ZIP area)
Time zoneMountain · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)46.5927, -112.0361

Map

Nearby ZIP codes

59624 Helena · 0 mi59626 Helena · 0 mi59623 Helena · 0.3 mi59625 Helena · 0.6 mi59636 Fort Harrison · 4 mi59604 Helena · 6 mi59601 Helena · 8.8 mi59634 Clancy · 10.2 mi

About ZIP 59620

ZIP code 59620 is assigned to Helena, Montana. It lies in Lewis and Clark County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 59624 (Helena), about 0 miles away.

Every address in 59620 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources