Blaine County, Idaho Demographics 2026

Name: Blaine County, Idaho Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Blaine County, Idaho has a population of 24,951, the 17th most populous county in Idaho. The median household income is $92,566 and the median home value is $735,300. The poverty rate is 6.6%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

Blaine County Quick Facts

Population 24,951

Median Household Income $92,566

Median Home Value $735,300

Poverty Rate 6.6%

Unemployment Rate 2.1%

Median Age 45.6 years

Homeownership Rate 73.5%

Affordability Ratio 7.9x

Bachelor's Degree+ 48.0%

High School Graduation 91.5%

Cities/Places 6

Population 24,951 17th of 44

Median Income $92,566 19% higher than state

Poverty Rate 6.6%

Unemployment 2.1%

How Blaine County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	24,579	24,951	+1.5%
Median household income	$84,470	$92,566	+9.6%
Median home value	$663,800	$735,300	+10.8%

Median Household Income

Blaine

$92,566

$77,800

National

$80,734

Median Home Value

Blaine

$735,300

$418,600

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 7.1%

$25K-$50K 18.8%

$50K-$100K 29.0%

$100K+ 45.1%

Detailed income brackets

Under $10K

2.1%

$10K-$15K

1.1%

$15K-$20K

1.3%

$20K-$25K

2.6%

$25K-$30K

2.3%

$30K-$35K

2.6%

$35K-$40K

5.7%

$40K-$45K

4.7%

$45K-$50K

3.5%

$50K-$60K

5.8%

$60K-$75K

8.8%

$75K-$100K

14.4%

$100K-$125K

12.5%

$125K-$150K

8.9%

$150K-$200K

9.3%

$200K+

14.5%

Employment

2.1% Unemployment Rate State: 3.7%|National: 5.2%

69.8% Labor Force Participation

Housing Overview

Owner 73.5%

Renter 26.5%

Affordability Index Very Expensive

7.9x home value to income ratio

Median gross rent $1,338/mo 17.3% of median household income annually

People & Demographics

Age Distribution

Under 18

19.2%

18-34

18.3%

35-54

24.2%

55-74

29.4%

75+

8.9%

Race & Ethnicity

Diversity Index

Moderate Diversity

Moderate diversity with one or two groups making up the majority.

State average: 36 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in Blaine County

City	Population	Median Income	Poverty	Home Value
Hailey	9,665	$90,760	7.3%	$637,800
Ketchum	3,594	$93,046	5.2%	$824,000
Bellevue	2,588	$72,712	9.3%	$539,000
Sun Valley	1,460	$125,987	6.0%	$962,500
Carey	1,196	$59,375	3.6%	$311,800
Gannett	284	N/A	0.0%	$255,200

Explore Idaho Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

Blaine County is located in Idaho with a total population of 24,951. It is the 17th most populous county out of 44 in Idaho. The county encompasses 6 Census-designated places.

Age Demographics

The median age in Blaine County is 45.6 years. This is 22% higher than the state median of 37.3 years.

Economy, Income & Housing

The median household income in Blaine County is $92,566. This is 19% higher than the state median of $77,800. It is also 15% higher than the national median of $80,734. The poverty rate stands at 6.6%. This is 37% lower than the state poverty rate of 10.6%. The unemployment rate is 2.1%. This is 45% lower than the state rate of 3.7%. The median home value is $735,300. Housing costs are 76% higher than the state median of $418,600. The home-value-to-income ratio of 7.9x suggests that housing affordability is a significant concern for many residents. 73.5% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 72.1%.

Race & Ethnicity

The largest racial or ethnic group in Blaine County is White (non-Hispanic), making up 71.9% of the population. Hispanic or Latino residents account for 21.9%. The Black or African American population (0.3%) is well below the state average of 0.7%. The Hispanic or Latino population is significantly higher than the state average (21.9% vs 13.7%). The Asian population (0.6%) is well below the state average of 1.3%.

Education

48.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Blaine County in the top 10% of all counties in the state for educational attainment. This is 51% higher than the state rate of 31.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.5%.

Data Sources & Methodology

All figures for Blaine County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Idaho and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of Blaine County, Idaho?

Blaine County has a population of 24,951, making it the 17th most populous county in Idaho.

What is the median income in Blaine County?

The median household income in Blaine County is $92,566 with a poverty rate of 6.6%.

How many cities are in Blaine County, Idaho?

Blaine County contains 6 Census-designated places.