Lake County · Montana
ZIP code 59931
- Population
- 249
- Median income
- $172,750
- Median home
- $1,015,600
- Sales tax
- 0%
ZCTA residents
Household, past 12 months
Owner-occupied value
Montana state rate
Quick answer
ZIP 59931 sits in Lake County, Montana and is home to 249 people. Median household income is $172,750, the median home is worth $1,015,600 and median gross rent is —. 97.9% of households own their home, and purchases are taxed at 0% (Montana state rate).
- County
- Lake County
- State
- Montana (MT)
- Area codes
- Not published
- Metro area
- Outside covered metros
FIPS 30047
369 ZIPs covered
No NANPA match for this ZIP
Rate jurisdiction used for tax
The numbers for 59931
American Community Survey 2019-2023 ACS 5-year estimates for this ZCTA.
- Population
- 249ZIP 59931 residents
- Median household income
- $172,750Past 12 months, inflation adjusted
- Median home value
- $1,015,600Owner-occupied units
- Median gross rent
- —Rent plus utilities, monthly
- Median age
- 55.9 yrsAll residents
- Homeownership rate
- 97.9%Owner-occupied households
Sales tax in 59931
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 59931 compares
ZIP 59931 against the median ZIP in Lake County and across Montana.
| Measure | ZIP 59931 | County median | State median | vs state |
|---|---|---|---|---|
| Median household income | $172,750 | $62,500 | $64,375 | +168% |
| Median home value | $1,015,600 | $355,550 | $268,150 | +279% |
| Median gross rent | — | $841 | $857 | — |
| Population | 249 | 519 | 496 | -50% |
Medians are computed across the 12 ZIP areas in Lake County and the 369 ZIP areas in Montana.
Statewide rank
Where this ZIP places among all 369 Montana ZIP areas.
- Income
- #2
- Home value
- #2
- Population
- #249
richer than 99% of 327 state ZIPs
above 99% of 312 state ZIPs
larger than 33% of 369 state ZIPs
Comparable ZIP codes
Montana ZIP areas with almost the same household income.
Nearby ZIP codes
Other ZIP codes filed under Lake County.
ZIP 59931 questions
Common questions about this ZIP code.
- Where is ZIP code 59931?
- ZIP 59931 lies mostly in Lake 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 59931?
- Montana charges 0% statewide, plus any county, city or district rate that applies locally.
- Is 59931 expensive to live in?
- Median rent runs — a month, and the median home is worth $1,015,600 — +279% 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.