County

Jefferson County, MT

6 ZIP codes  ·  6 cities  ·  Montana

👥12,837Population
💰$85,346Median HH Income▲ 12% above avg
🎂47.9Median Age
🏠$393,048Median Home Value▲ 41% above avg
🎓47.4%College Grads▲ 22% above avg
📊3.4%Unemployment▼ 31% below avg
People & Population (ACS 2023 — weighted avg)
♂ Male 51.3% Female 48.7% ♀

Race & Ethnicity

White: 90.8%Hispanic: 3.3%Black: 0.2%Asian: 0.6%Other: 4.2%Race
White90.8%
Hispanic3.3%
Black0.2%
Asian0.6%
Other4.2%

Age Breakdown

Under 5
4%
5–17
15%
18–24
6%
25–44
20%
45–64
30%
65+
11%

Key Indicators

Median Age47.9 yrs
Avg HH Size2.47
Below Poverty5.7% ▼ 43% below avg
College Grads47.4% ▲ 22% above avg
Unemployment3.4% ▼ 31% below avg
No HS Diploma40 (0.4%)
HS Graduate2,197 (24.6%)
Some College1,068 (11.9%)
Associates1,418 (15.9%)
Bachelors1,272 (14.2%)
Graduate Degree2,943 (32.9%)

Education

No HS: 0.4%HS Grad: 24.6%Some College: 11.9%Associates: 15.9%Bachelors: 14.2%Graduate: 32.9%Edu
No HS0.4%
HS Grad24.6%
Some College11.9%
Associates15.9%
Bachelors14.2%
Graduate32.9%
Housing & Income

Housing Tenure

Owner: 84.5%Renter: 15.6%Tenure
Owner84.5%
Renter15.6%

Home Value Distribution

Under $50k
3%
$50k–$100k
3%
$100k–$150k
3%
$150k–$200k
7%
$200k–$300k
17%
$300k–$500k
33%
Over $500k
32%

Financials

Median HH Income$85,346 ▲ 12% above avg
Median Home Value$393,048 ▲ 41% above avg
Home/Income Ratio4.6x (nat avg ~3.5x)
Median Rent$961/mo
Total Housing Units5,641
Vacant Units523

Income Distribution

Under $25k
12%
$25k–$50k
15%
$50k–$75k
23%
$75k–$100k
10%
$100k–$150k
18%
$150k–$200k
11%
Over $200k
12%
Employment & Commute

How People Get to Work

Drove Alone
83%
Public Transit
0%
Walked
3%
Work From Home
14%

Commute Time

Under 15 min
31%
15–30 min
39%
30–45 min
15%
Over 45 min
15%
Housing Stock

Year Built

Before 1940
2%
1940s–1950s
4%
1960s–1970s
14%
1980s–1990s
21%
2000+
60%
About Jefferson County, MT

Jefferson County is located in Montana and encompasses 6 ZIP codes spanning 6 cities and communities. The county has an estimated population of 12,837 residents. With a median age of 47.9, it is a mature county.

Jefferson County has a middle-income economic profile. The median household income of $85,345 is near the national average. Unemployment stands at 3.4%, below the national average. The poverty rate of 5.7% is well below the national average.

Housing in Jefferson County is a mid-range housing market, with a median home value of $393,048 — above the national average. Monthly median rent is approximately $961. Homeownership rates are high at 84.5%, reflecting a largely residential, stable population.

The residents of Jefferson County are primarily White (90.84%). Educational attainment is well-educated — 47.4% of adults hold a bachelor's degree or higher, above the national average.

Jefferson County, MT is a middle-income area in Montana. The 6 ZIP codes within the county each have their own character — browse the full list below to find the right community, whether you're looking for affordable housing, strong schools, or economic opportunity.

ZIP Codes in Jefferson County
ZIPCityPopulationMedian IncomeMedian HomeMedian RentUnemp.College
59631 Basin 367 $49,375 $229,300 0.0% 41.2%
59632 Boulder 2,535 $62,770 $260,600 $691 5.7% 41.4%
59721 Cardwell 519 $86,932 $615,700 $896 0.4% 35.9%
59634 Clancy 5,238 $120,881 $500,700 $1,161 1.0% 56.9%
59638 Jefferson City 511 $73,375 $269,000 0.0% 37.8%
59759 Whitehall 3,667 $55,237 $333,000 $872 6.5% 41.6%