Treasure County, Montana Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 55th-largest in Montana

The population of Treasure County, Montana is 761 as of the 2023 American Community Survey, making it the 55th-largest county in Montana. The median household income is $73,036, the median home value is $215,300, and the median age is 53.4.

The population of Treasure County has grown 3.5% since 2010 (714 → 739), a +0.25% annualized rate.

Treasure County within Montana · Source: US Census TIGER/Line via us-atlas

761

Population

+0.25%

Annual growth

People / sq mi

$73,036

Median Income

$215,300

Median Home Value

Treasure County covers 978 sq mi of land at 0.8 people per square mile.

About Treasure County, MT

Treasure County is a county in Montana with a population of 761. It ranks #55 among counties in Montana by population. The median age is 53.4, older than the national median. The population is 54.0% male and 46.0% female.

The median household income in Treasure County is $73,036, near the US median of $74,580. 6.5% of residents live below the federal poverty level. Home values sit at a median of $215,300, with monthly rent averaging $992. The homeownership rate of 66.5% is close to the national rate of 64.8%.

Educational attainment in Treasure County reflects 32.8% of adults 25 and older holding a bachelor's degree or higher, near the national average of 34.3%. Roughly 20.6% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 17.2 minutes each way.

Treasure County Population History (2010-2024)

The county of Treasure County had a population of 714 in 2010 and 739 in 2024, a 3.5% growth over 14 years. The peak was 768 in 2021. Average annual growth rate: 0.30%.

739

Population (2024)

714

Population (2010)

768

Peak (2021)

0.30%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	714	-	-	estimate
2011	709	-5	-0.70%	estimate
2012	717	+8	+1.13%	estimate
2013	688	-29	-4.04%	estimate
2014	684	-4	-0.58%	estimate
2015	680	-4	-0.58%	estimate
2016	678	-2	-0.29%	estimate
2017	668	-10	-1.47%	estimate
2018	667	-1	-0.15%	estimate
2019	697	+30	+4.50%	estimate
2020	758	+61	+8.75%	estimate
2021	768	+10	+1.32%	estimate
2022	749	-19	-2.47%	estimate
2023	767	+18	+2.40%	estimate
2024	739	-28	-3.65%	estimate

Race & Ethnicity

White	93.7%
Black or African American	0.0%
Asian	0.0%
Hispanic or Latino (any race)	0.1%
Two or More Races	0.0%

Age & Sex

53.4

Median Age

46.0%

Female

54.0%

Male

22.6%

Age 65+

Age Distribution

Under 5

3.7%

5–9

4.9%

10–14

5.9%

15–19

3.0%

20–24

2.8%

25–34

15.9%

35–44

9.1%

45–54

8.1%

55–59

10.1%

60–64

13.9%

65–74

12.2%

75–84

7.5%

85+

2.9%

Children (under 15): 14.5% · Seniors (65+): 22.6%

Income & Poverty

Median household income	$73,036+$3,114 vs state
Mean household income	$94,624
Per-capita income	$45,882
Poverty rate	6.5%-0.6% vs state
Unemployment rate	0.8%
Employment-to-population	68.2%

Top Industries by Employment

Agriculture

40.6%

Professional & business services

20.4%

Retail trade

14.1%

Public administration

7.3%

Finance & real estate

4.1%

Construction

2.3%

Arts, entertainment & food

2.0%

Education & health care

0.9%

The largest employment sector in Treasure County is agriculture, accounting for 40.6% of workers.

How residents commute

0.0%

Drive alone

1.4%

Carpool

73.2%

Public transit

20.6%

Work from home

17.2 min

Avg commute

Housing

$215,300$-122,800 vs state

Median home value

$992

Median rent

66.5%

Homeownership rate

479

Total housing units

79.7%

Occupied

20.3%

Vacant

33.5%

Renter-occupied

Social & access

94.6%

With health insurance

94.0%

With broadband internet

35.9%

Foreign-born

9.4%

Veterans (18+)

14.8%

With a disability

97.7%

Speak language other than English at home

Education

94.9%

High School+

32.8%

Bachelor's+

Largest cities in Montana

Billings (118,321)Missoula (75,600)Great Falls (60,412)Bozeman (55,042)Butte-Silver Bow (34,929)Helena (33,126)Kalispell (26,830)Belgrade (11,425)All Montana cities →

Other counties in Montana

Yellowstone County (167,340)Gallatin County (122,194)Missoula County (119,639)Flathead County (108,445)Cascade County (84,601)Lewis and Clark County (72,580)Ravalli County (45,807)Silver Bow County (35,589)Lake County (32,073)Lincoln County (20,656)All Montana counties →

Part of Montana

Montana demographic profile All Montana data →

Metro areas in Montana

Billings (187,269)Missoula (124,435)Bozeman (122,194)Helena (92,391)Great Falls (84,601)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Treasure County, Montana has a population of 761 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 55th-largest county in Montana. Population density is 1 people per square mile.

The population of Treasure County has grown 3.5% since 2010 (714 → 739), a +0.25% annualized rate.

The median household income in Treasure County, Montana is $73,036, with mean (average) household income of $94,624 and per-capita income of $45,882. 6.5% of residents live below the federal poverty level.

In Treasure County, the largest racial and ethnic groups are White (93.7%), Hispanic or Latino (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Treasure County, Montana is 53.4 years. Residents are 46.0% female and 54.0% male.

The median home value in Treasure County is $215,300 and median monthly rent is $992. 66.5% of occupied housing units are owner-occupied. The county has 479 total housing units, 20.3% of which are vacant.

The largest employment sector in Treasure County, Montana is agriculture, forestry, fishing, and mining, employing 40.6% of workers. The unemployment rate is 0.8%.

Billings is among the largest cities associated with Treasure County, Montana, with a population of 118,321.