Find the last 4 digits (ZIP+4) for an address in 59604

ZIP 59604, Helena, MT is filled in. Just type the street address.

Addresses are checked through our secure proxy. Bot checks use Cloudflare Turnstile. Each device can run 5 live checks per day; repeats of the same address are free.

ZIP Code 59604 – Helena, MT

Helena, Montana · Lewis and Clark County · Mountain time

ZIP code59604
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)46.6672, -111.9689

Map

Nearby ZIP codes

59602 Helena · 5 mi59625 Helena · 5.6 mi59620 Helena · 6 mi59624 Helena · 6 mi59626 Helena · 6 mi59623 Helena · 6.3 mi59636 Fort Harrison · 7.7 mi59635 East Helena · 10.6 mi

About ZIP 59604

ZIP code 59604 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 59602 (Helena), about 5 miles away.

Every address in 59604 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