Find the last 4 digits (ZIP+4) for an address in 59638

ZIP 59638, Jefferson City, MT is filled in. Just type the street address.

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ZIP Code 59638 – Jefferson City, MT

Jefferson City, Montana · Jefferson County · Mountain time

ZIP code59638
CityJefferson City
StateMontana
CountyJefferson County
Area code406
Population769
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area60.41 sq mi
Center (lat, long)46.3579, -112.0277

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Nearby ZIP codes

59634 Clancy · 6 mi59632 Boulder · 13.1 mi59601 Helena · 14.5 mi59623 Helena · 16 mi59620 Helena · 16.2 mi59624 Helena · 16.2 mi59626 Helena · 16.2 mi59625 Helena · 16.8 mi

About ZIP 59638

ZIP code 59638 is assigned to Jefferson City, Montana. It lies in Jefferson County. Its Census area covers about 60.41 square miles of land. The closest neighboring ZIP is 59634 (Clancy), about 6 miles away.

Every address in 59638 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