COUNTY · 1990 CENSUS

Jefferson County

Montana · 7,939 residents · 1,656.997 sq mi

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The short version

Jefferson County has roughly average household income, with a median household income of $31,400. Population has fallen 21% since 2000, a loss of 2,110 residents. Median home value is $64,000. Households here earn about 37% more than the Montana median.

At a glance

Average income

near the US median

US median: $30,130

Older

median age 35.1

US median: 33.0

Average education

21% hold a bachelor's degree

US average: 20%

More affordable

home values down 34%, inflation adjusted

US median home: $93,722

Section 01

Population & growth

Total population

7,939

−21%vs 2000

vs 10,049 in 2000

1990 – 2025

Population density

5 / sq mi

−21%vs 2000

vs 6 / sq mi in 2000

US average: 221

Median age

35.1

−13%vs 2000

vs 40.2 in 2000

US average: 33.0

Population, 1990 – 2024

202413K

Section 02

Income & economy

Median household income

$31,400

Unchangedinflation adjusted, since 2000

vs $41,506 in 2000

US average: $30,130

1990 – 2024

Per capita income

$13,233

−27%vs 2000

vs $18,250 in 2000

US average: $14,340

Poverty rate

7.4%

−1.6 ptsvs 2000

vs 9.0% in 2000

US average: 13.2%

Section 03

Housing

Median home value

$64,000

−34%inflation adjusted, since 2000

vs $127,700 in 2000

US average: $93,722

1990 – 2024

Median gross rent

$299

−6%inflation adjusted, since 2000

vs $419 in 2000

US average: $450

Owner-occupied

80.7%

−2.5 ptsvs 2000

vs 83.2% in 2000

19.3% rent

Afford Score

2.0

−34%vs 2000

vs 3.1 in 2000

1990 – 2024

RELATED:See current rent listings in Jefferson County on RentDataNow

Section 04

Race & ethnicity

2000

White, non-Hispanic95.2%(9,564)

Black0.1%(13)

Hispanic / Latino1.5%(149)

Asian0.4%(42)

Other0%

Diversity Score5.1%(516)

1990

White, non-Hispanic97.5%(7,744)

Black0%(2)

Hispanic / Latino1%(82)

Asian0.2%(14)

Other2.3%(179)

Diversity Score8.4%(668)

Diversity Score

+64%vs 2000

vs 5 in 2000

1990 – 2024

Section 05

Education

Bachelor's degree or higher

20.8%

−6.8 ptsvs 2000

vs 27.7% in 2000

US average: 20.3%

High school or higher

81.3%

−8.9 ptsvs 2000

vs 90.2% in 2000

US average: 75.2%

Graduate degree

5.2%

−3.8 ptsvs 2000

vs 8.9% in 2000

US average: 7.1%

Section 06

Commute & transportation

Average commute

20.2 min

+36%vs 2000

vs 14.9 min in 2000

US average: 21.9

Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Drill deeper

Places similar to Jefferson County

Head to head

Compare Jefferson County to nearby counties

JEFFERSON COUNTY VS

Broadwater County

Income$70,374+124%

Home value$426,600+567%

Population8,493−36%

SEE FULL COMPARISON →

JEFFERSON COUNTY VS

Silver Bow County

Income$61,754+97%

Home value$255,200+299%

Population36,118+171%

SEE FULL COMPARISON →

JEFFERSON COUNTY VS

Deer Lodge County

Income$57,527+83%

Home value$231,700+262%

Population9,709−27%

SEE FULL COMPARISON →

JEFFERSON COUNTY VS

Madison County

Income$75,250+140%

Home value$470,100+635%

Population10,026−25%

SEE FULL COMPARISON →

Frequently asked

How many people live in Jefferson County, Montana?

Jefferson County, Montana has about 7,939 residents according to the 1990 Census.

What is the median household income in Jefferson County, Montana?

The typical household in Jefferson County, Montana earns about $31,400 a year. Half of households make more than that, and half make less.

Is Jefferson County, Montana expensive?

In Jefferson County, Montana, the median home is worth about $64,000, and the typical rent is about $299 a month.

How educated are people in Jefferson County, Montana?

About 20.8% of adults age 25 and over in Jefferson County, Montana hold a bachelor's degree or higher.

What is the poverty rate in Jefferson County, Montana?

About 7.4% of people in Jefferson County, Montana live below the federal poverty line.

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3 census tracts

Census Tract 9622.02 Census Tract 9622.01 Census Tract 9623

6 ZIP codes

ZIP 59634 ZIP 59759 ZIP 59632 ZIP 59638 ZIP 59721 ZIP 59631

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →