US ZIP Code
59631

Basin, MT

Jefferson County  ·  Montana

● Active
👥 367 Population ↑ 56% since 2019
💰 $49,375 Median HH Income
▼ 35% below avg ↑ 9% since 2019
🎂 54.1 Median Age ↑ 5% since 2019
🏠 $229,300 Median Home Value
▼ 18% below avg ↑ 36% since 2019
🎓 41.2% College Grads
≈ Avg
📊 0.0% Unemployment
▼ 100% below avg ↓ 100% since 2019
ZIP Code Details
ZIP Code59631
CityBasin
StateMontana (MT)
CountyJefferson County
Area Code406
Elevation6,095 ft
Latitude46.290605
Longitude-112.388976
TimezoneDenver (DST)
FIPS30043
ZIP TypePO Box
StatusActive
People & Population (ACS 2023)
♂ Male 62.7% (230) Female 37.3% (137) ♀

Race & Ethnicity

White: 86.9%Hispanic: 6.8%Black: 0.8%Asian: 5.5%Race
White86.9%
Hispanic6.8%
Black0.8%
Asian5.5%

Age Breakdown

Under 5
2%
5–17
12%
18–24
12%
25–44
19%
45–64
32%
65+
11%

Key Indicators

Median Age54.1 yrs ↑ 5% since 2019
Avg Household Size2.37
Below Poverty4.4% ▼ 56% below avg
College Grads41.2% ≈ Avg
Unemployment0.0% ▼ 100% below avg
No HS Diploma7 (2.9%)
HS Graduate109 (44.9%)
Some College10 (4.1%)
Associates17 (7%)
Bachelors26 (10.7%)
Graduate Degree74 (30.5%)

Education

No HS: 2.9%HS Grad: 44.9%Some College: 4.1%Associates: 7%Bachelors: 10.7%Graduate: 30.5%Edu
No HS2.9%
HS Grad44.9%
Some College4.1%
Associates7.0%
Bachelors10.7%
Graduate30.5%
Housing & Income

Housing Tenure

Owner: 83.2%Renter: 16.8%Tenure
Owner83.2%
Renter16.8%

Home Value Distribution

$50k–100k
29%
$100k–150k
1%
$150k–200k
5%
$200k–300k
32%
$300k–500k
29%
Over $500k
5%

Financials

Median HH Income$49,375 ▼ 35% below avg ↑ 9% since 2019
Median Home Value$229,300 ▼ 18% below avg ↑ 36% since 2019
Home/Income Ratio4.6x (nat avg ~3.5x)
Total Units188
Vacant Units33
Avg HH Size2.37

Income Distribution

Under $25k
6%
$25k–50k
45%
$50k–75k
10%
$75k–100k
6%
$100k–150k
10%
$150k–200k
22%
Over $200k
1%
Employment & Commute

How People Get to Work

Drove Alone
89%
Walked
6%
Work From Home
5%

Commute Time

Under 15 min
14%
15–30 min
24%
30–45 min
29%
Over 45 min
32%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
3%
1960s–1970s
7%
1980s–1990s
28%
2000+
59%

Summary

Total Units188
Vacant33
Owner Occupied83.2%
Renter Occupied16.8%
Avg HH Size2.37
Frequently Asked Questions
ZIP code 59631 is in Basin, MT, in Jefferson County.
ZIP code 59631 is located in Montana (MT).
ZIP code 59631 is in Jefferson County, MT.
ZIP 59631 observes the Denver timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 59631 is 367 people (ACS 2023).
The median household income in ZIP code 59631 is $49,375 (ACS 2023).
The median home value in ZIP 59631 is $229,300 (ACS 2023).
About ZIP Code 59631

ZIP code 59631 is located in Basin, Montana, within Jefferson County. With a population of 367, this is a sparsely populated ZIP code with a mature community — the median age is 54.1 years. Economically, 59631 is a working-class ZIP code: the median household income of $49,375 is below the national average.

Real estate in ZIP code 59631 represents an affordable housing market. The median home value of $229,300 is below the national average. Homeownership is strong here — 83.2% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 36% since 2019.

The population of 59631 is primarily White (86.92%). Residents are well-educated — 41.2% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 4.4%. Household income has grown by 9% since 2019.

As in most parts of the country, driving alone is the dominant commute mode at 82%.

Overall, ZIP code 59631 in Basin, MT is characterized as working-class, well-educated, a mature community, and predominantly owner-occupied. With 367 residents, a median household income of $49,375, and a median home value of $229,300, it offers a clear picture of life in this part of Montana.