
Jefferson County · Montana
ZIP code 59638
- Population
- 511
- Median income
- $73,375
- Median home
- $269,000
- Sales tax
- 0%
ZCTA residents
Household, past 12 months
Owner-occupied value
Montana state rate
Quick answer
ZIP 59638 sits in Jefferson County, Montana and is home to 511 people. Median household income is $73,375, the median home is worth $269,000 and median gross rent is —. 97.6% of households own their home, and purchases are taxed at 0% (Montana state rate).
- County
- Jefferson County
- State
- Montana (MT)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 30043
369 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 59638
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 511ZIP 59638 residents
- Median household income
- $73,375Past 12 months, inflation adjusted
- Median home value
- $269,000Owner-occupied units
- Median gross rent
- —Rent plus utilities, monthly
- Median age
- 52.7 yrsAll residents
- Homeownership rate
- 97.6%Owner-occupied households
ZIP 59638 in context
How this area compares with national benchmarks.
ZIP 59638 is a very small community in Jefferson County, Montana, with 511 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #182 of 369 ranked by population — larger than 50% of them. The median age here is 52.7 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.
Households in ZIP 59638 earn a median of $73,375 a year, 6.6% below the national figure of $78,538. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 4.3% of residents here, less than half the 12.4% national rate.
The typical owner-occupied home in ZIP 59638 is valued at $269,000, 11.3% below the national figure, while median gross rent runs not published a month. The home-price-to-income ratio works out to 3.7×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 97.6% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
A median age of 52.7 puts ZIP 59638 well into retirement-weighted territory, which pulls median household income down even where household wealth is high, because retirement draws are counted differently from wages. With 511 residents, a handful of survey responses moves every median on this page. Compare ZIP 59638 against its county rather than against national figures.
The Census withheld gross rent for ZIP 59638 because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.
Reading ZIP 59638 in context
How 59638 sits inside Jefferson County and Montana.
ZIP 59638 is tabulated inside Jefferson County, Montana, one of 6 ZIP areas the Census publishes for that county and 369 across Montana. Fewer than 2,500 people are counted here, so the ZIP behaves like a village delivery route rather than a neighbourhood. County assignment on this page follows the largest share of the ZIP's land area, which matters where a delivery route crosses a county line: mail addressed to 59638 can be handled by a post office in a neighbouring county even though the tabulation area is filed here.
Against its own county, 59638 reports a median household income of $73,375, 8% above the $68,073 county median, and 14% above the $64,375 typical MT ZIP. Owner-occupied homes are valued at a median of $269,000, 11% below the county figure and close to the statewide ZIP median. Rent is reported gross — the contract amount plus tenant-paid utilities — at not published a month, which is why it reads higher than the advertised rent on a listing for the same unit.
Montana charges 0% statewide, and local governments overlapping 59638 may add county, city or special-district levies on top. We publish the state floor for this ZIP rather than guessing a combined figure, because ZIP boundaries and taxing-district boundaries were drawn for different purposes and do not line up.
Everything above comes from the Census Bureau American Community Survey 2019-2023 ACS 5-year estimates for this ZIP Code Tabulation Area, with sales tax rates traced to the state revenue agency. Five-year estimates pool sixty months of responses, so they are stable enough to compare 59638 with its neighbours but always trail the current year, and any value the Census suppressed for sample size is shown as unpublished rather than filled in with a model.
Sales tax in 59638
What a purchase inside this ZIP costs at checkout.
Montana levies 0% statewide, and counties, cities and special districts inside this ZIP can add their own local rate on top. Check the county page for the local component before you quote a price.
Affordability in this ZIP
Derived from the Census medians above — indicative, not an offer.
A rent burden above 30% is the federal threshold for cost-burdened households, and a price-to-income multiple above 4× is generally considered a stretched housing market. The mortgage figure is principal and interest only — taxes, insurance and HOA dues are extra.
How 59638 compares
ZIP 59638 against the median ZIP in Jefferson County and across Montana.
| Measure | ZIP 59638 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $73,375 | $68,073 | $64,375 | +14% |
| Median home value | $269,000 | $301,000 | $268,150 | even |
| Median gross rent | — | $884 | $857 | — |
| Population | 511 | 1,527 | 496 | +3% |
Medians are computed across the 6 ZIP areas in Jefferson County and the 369 ZIP areas in Montana.
Statewide rank
Where this ZIP places among all 369 Montana ZIP areas.
- Income
- #113
- Home value
- #155
- Population
- #182
richer than 65% of 327 state ZIPs
above 50% of 312 state ZIPs
larger than 51% of 369 state ZIPs
Comparable ZIP codes
Montana ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Jefferson County.
Adjacent ZIP Codes
Other ZIP codes in Jefferson County, Montana.
ZIP 59638 questions
Common questions about this ZIP code.
- Where is ZIP code 59638?
- ZIP 59638 lies mostly in Jefferson County, Montana. County assignment follows the largest share of land area, so a ZIP straddling a county line is filed under its dominant county.
- What sales tax do I pay in 59638?
- Montana charges 0% statewide, plus any county, city or district rate that applies locally.
- Is 59638 expensive to live in?
- Median rent runs — a month, and the median home is worth $269,000 — even against the typical Montana ZIP.
- Is a ZCTA the same as a postal ZIP code?
- Not exactly. The Census builds ZIP Code Tabulation Areas from the ZIP codes of addresses inside each census block, so a ZCTA can differ slightly from the USPS delivery route of the same number, and PO-box-only ZIPs have no ZCTA at all.
Keep going
Related pages for this area.
Sources & transparency
- US Census Bureau, ACS 2019-2023 5-year estimates — 2019-2023 ACS 5-year — population, income, housing
- Census 2020 ZCTA-to-county relationship file — County assignment by largest land-area overlap
- Montana Department of Revenue — Sales tax rates and local add-ons
Last reviewed December 2024. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.