COUNTY · 2000 CENSUS

Yellowstone County

Montana · 129,352 residents · 2,633.256 sq mi

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The short version

Yellowstone County has lower-than-average household income, with a median household income of $36,727. Population has held roughly steady since 1990. Median home value has risen by half since 1990, reaching $97,200.

At a glance

Lower income

below the US median

US median: $42,589

Mid-age

median age 36.9

US median: 35.2

Average education

26% hold a bachelor's degree

US average: 24%

Stable housing

home values roughly flat, inflation adjusted

US median home: $120,530

Section 01

Population & growth

Total population

129,352

+14%since 1990

from 113,419 in 1990

1990 – 2025

Population density

49 / sq mi

+14%since 1990

from 43 / sq mi in 1990

US average: 242

Median age

36.9

+10%since 1990

from 33.5 in 1990

US average: 35.2

Population, 1990 – 2024

2024169K

Section 02

Income & economy

Median household income

$36,727

+7%inflation adjusted, since 1990

from $25,942 in 1990

US average: $42,589

1990 – 2024

Per capita income

$19,303

+55%since 1990

from $12,416 in 1990

US average: $21,522

Poverty rate

11.1%

−1.0 ptssince 1990

from 12.1% in 1990

US average: 12.4%

Section 03

Housing

Median home value

$97,200

+18%inflation adjusted, since 1990

from $62,700 in 1990

US average: $120,530

1990 – 2024

Median gross rent

$474

+5%inflation adjusted, since 1990

from $343 in 1990

US average: $602

Owner-occupied

69.2%

+3.4 ptssince 1990

from 65.7% in 1990

30.8% rent

Afford Score

2.6

+10%since 1990

from 2.4 in 1990

1990 – 2024

RELATED:See current rent listings in Yellowstone County on RentDataNow

Section 04

Race & ethnicity

1990

White, non-Hispanic95.3%(108,075)

Black0.3%(380)

Hispanic / Latino2.7%(3,045)

Asian0.4%(463)

Diversity Score17.1%(19,376)

2000

White, non-Hispanic91%(117,698)

Black0.4%(542)

Hispanic / Latino3.7%(4,788)

Asian0.5%(666)

Diversity Score11.6%(15,046)

Diversity Score

−32%since 1990

from 17 in 1990

1990 – 2024

Section 05

Education

Bachelor's degree or higher

26.4%

+4.9 ptssince 1990

from 21.5% in 1990

US average: 24.4%

High school or higher

88.5%

+4.8 ptssince 1990

from 83.7% in 1990

US average: 80.3%

Graduate degree

7.3%

+1.7 ptssince 1990

from 5.6% in 1990

US average: 8.8%

Section 06

Commute & transportation

Average commute

11.1 min

−33%since 1990

from 16.6 min in 1990

US average: 17.6

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 Yellowstone County

Head to head

Compare Yellowstone County to nearby counties

YELLOWSTONE COUNTY VS

Musselshell County

Income$58,920+60%

Home value$235,000+142%

Population5,582−97%

SEE FULL COMPARISON →

YELLOWSTONE COUNTY VS

Big Horn County

Income$58,750+60%

Home value$143,400+48%

Population12,752−93%

SEE FULL COMPARISON →

YELLOWSTONE COUNTY VS

Treasure County

Income$67,917+85%

Home value$230,300+137%

Population728−100%

SEE FULL COMPARISON →

YELLOWSTONE COUNTY VS

Golden Valley County

Income$58,333+59%

Home value$212,200+118%

Population844−100%

SEE FULL COMPARISON →

Frequently asked

How many people live in Yellowstone County, Montana?

Yellowstone County, Montana has about 129,352 residents according to the 2000 Census.

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

The typical household in Yellowstone County, Montana earns about $36,727 a year. Half of households make more than that, and half make less.

Is Yellowstone County, Montana expensive?

In Yellowstone County, Montana, the median home is worth about $97,200, and the typical rent is about $474 a month.

How educated are people in Yellowstone County, Montana?

About 26.4% of adults age 25 and over in Yellowstone County, Montana hold a bachelor's degree or higher.

What is the poverty rate in Yellowstone County, Montana?

About 11.1% of people in Yellowstone County, Montana live below the federal poverty line.

Has Yellowstone County, Montana grown since 1990?

Yes, Yellowstone County, Montana has grown since 1990. The population has added about 15,933 residents, a change of about 14 percent over that period.

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

How we source and harmonize this data →