ZIP code 59638: Jefferson City, MT
59638 is a ZIP code in Jefferson City, Montana, mainly in Jefferson County, part of the Helena, MT metro area. About 769 people live here.
- Population
- 769
- Median household income
- $126,723
- Typical home value
- $563,000+1.6% in 12 months
- Median rent
- —gross, per month
- Median age
- 45.1
- Homeowners
- 97.8%of occupied homes
Shaded: ZIP code 59638's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 59638 details
| City | Jefferson City |
|---|---|
| State | Montana |
| County | Jefferson County |
| Metro area | Helena, MT |
| Time zone | Mountain Time (UTC−7), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 60.4 sq mi |
| Population density | 13 people per sq mi |
| Bachelor's degree or higher | 30.5% of adults 25+ |
| Average commute | 24.4 minutes |
| Center coordinates | 46.35790, -112.02770 |
ZIP codes near 59638
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 59634 | Clancy, MT | 6.0 mi | 5,521 |
| 59632 | Boulder, MT | 13.1 mi | 2,557 |
| 59601 | Helena, MT | 14.5 mi | 31,728 |
| 59623 | Helena, MT | 16.0 mi | 0 |
| 59624 | Helena, MT | 16.2 mi | — |
| 59620 | Helena, MT | 16.2 mi | — |
| 59626 | Helena, MT | 16.2 mi | — |
| 59625 | Helena, MT | 16.8 mi | 663 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 59638?
A typical home in ZIP code 59638 is worth about $563,000 (Zillow Home Value Index). The median household here earns $126,723 a year. See what buying here would cost per month, with Montana average taxes and insurance filled in.
Monthly payment for a $563,000 homeWhat can a $126,723 income afford?Rental property numbers
About ZIP code 59638
What city is ZIP code 59638?
ZIP code 59638 is in Jefferson City, MT, in Jefferson County.
What county is ZIP code 59638 in?
59638 is mainly in Jefferson County, Montana.
What is the population of ZIP code 59638?
About 769 people live in ZIP code 59638, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 59638 in?
59638 is in Mountain Time (UTC−7). It observes daylight saving time.