Blaine County Population

1890–2026

8,508

2026 projection

2.3% since 2020 (decrease)

05K10K15K20K25K1900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Blaine County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20268,508-70.08%
20258,515-70.08%
20248,522+50.06%
20238,517+650.77%
20228,452-1021.19%
20218,554-1501.72%
20208,704-7537.96%
20199,457-330.35%
20189,490-700.73%
20179,560-890.92%

Showing 10 of 28 years.

Blaine County Demographics

41.2median age

Median age

Female43.1 yrs
Male39.4 yrs

Adults

6,462
1,684 seniors (65+) · 26% of adults4,778 other adults

Sex

Female 48.5% · 4,160Male 51.5% · 4,410

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 86 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Blaine County Income

$61,642median household income

Median household income

$61,642

Half of households earn more, half earn less

Median earnings

$42,137

Typical yearly pay for a worker 25 or older.

Poverty rate

17.4%

About 1 in 6 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Blaine County Marital Status

50% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married50%49%51%
Never married27%32%23%
Divorced14%16%11%
Widowed8%3%13%
Separated1%<1%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201