CensusEasy
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
Median age
35.1
−13%vs 2000
vs 40.2 in 2000
US average: 33.0
Population, 1990 – 2024
7K9K10K12K13K1990201020202024Jefferson County
202413K
1990201020202024
Age distribution, 1990
Under 57.1%(567)
US avg: 7.3%
5 to 98.6%(686)
US avg: 7.3%
10 to 148.8%(698)
US avg: 6.9%
15 to 197%(557)
US avg: 7.1%
20 to 243.7%(292)
US avg: 7.5%
25 to 3414.5%(1,153)
US avg: 17.5%
35 to 4420.4%(1,618)
US avg: 15.1%
45 to 5411.8%(938)
US avg: 10.2%
55 to 647.5%(597)
US avg: 8.5%
65 to 746.2%(493)
US avg: 7.3%
75 to 843.3%(261)
US avg: 4%
85 and over1%(79)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
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
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%
1990
White, non-Hispanic97.5%(7,744)
Black0%(2)
Hispanic / Latino1%(82)
Asian0.2%(14)
Other2.3%(179)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican1.6%(202)
Venezuelan0.4%(47)
Spaniard0.1%(17)
Puerto Rican0.1%(16)
Cuban0.1%(14)
Asian origin
Korean0.3%(41)
Japanese0.1%(9)
Pacific Islander origin
Ancestry
German24.6%(3,145)
English19.7%(2,514)
Irish19%(2,428)
Norwegian9%(1,153)
Swedish4.4%(557)
Scottish3.6%(457)
Polish2.8%(353)
American2.7%(347)
French2.7%(340)
Italian2.6%(327)
Scotch-Irish2.5%(325)
Dutch2.4%(305)
+ 23 more ancestry groups with data
Danish1.6%(207)
Czech1.3%(165)
Finnish1.1%(146)
Russian1.1%(140)
Welsh0.7%(94)
British0.5%(67)
Slovene0.5%(62)
Greek0.5%(61)
Austrian0.4%(54)
Swiss0.3%(36)
Romanian0.3%(35)
Croatian0.2%(20)
Canadian0.1%(18)
Ukrainian0.1%(16)
Hungarian0.1%(15)
West Indian0.1%(13)
Jamaican0.1%(13)
Serbian0.1%(11)
Armenian0.1%(9)
Belgian0.1%(9)
Lithuanian0.1%(8)
RANKED:Largest German population · Largest English population · Largest Irish population · Largest Norwegian population · Largest Swedish population
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.

Marital status (2024)
Men 15+
Never married24.6%(1,334)
Married62.8%(3,400)
Widowed3.5%(187)
Divorced9.1%(494)
Women 15+
Never married18.1%(966)
Married66.6%(3,552)
Widowed8.8%(470)
Divorced6.5%(346)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper

Places similar to Jefferson County

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Pop 12,505
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Pop 10,582
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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Explore from here

3 census tracts
Census Tract 9622.02Census Tract 9622.01Census Tract 9623
6 ZIP codes
ZIP 59634ZIP 59759ZIP 59632ZIP 59638ZIP 59721ZIP 59631
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →