US Census Data

Blaine County vs Jefferson County

A side-by-side comparison of Blaine County and Jefferson County: population, income, housing, and more.

Blaine County and Jefferson County are counties in Idaho. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Jefferson County has the higher population (32,234 vs 24,579 in Blaine County). Blaine County has the higher median household income ($84,470 vs $82,952 in Jefferson County). Blaine County has the higher median home value ($663,800 vs $335,000 in Jefferson County).

Population, income & housing

Blaine CountyJefferson County
Population24,57932,234
Median age45.5 yrs32.3 yrs
Median household income$84,470$82,952
Median home value$663,800$335,000
Median gross rent$1,217$1,098
Housing units15,76910,499
Homeownership rate75.5%82.4%
Bachelor's degree or higher45.5%27.2%
Unemployment rate2.6%2.5%

Trends (ACS 5-year, 2019–2023)

Blaine CountyJefferson County
Population22,373 → 24,579 (+9.9%)28,534 → 32,234 (+13.0%)
Median household income$56,694 → $84,470 (+49.0%)$63,048 → $82,952 (+31.6%)
Median home value$428,900 → $663,800 (+54.8%)$203,700 → $335,000 (+64.5%)
Median gross rent$933 → $1,217 (+30.4%)$796 → $1,098 (+37.9%)

Blaine County

Population
22,37324,579
Median household income
$56,694$84,470
Median home value
$428,900$663,800
Median gross rent
$933$1,217

Jefferson County

Population
28,53432,234
Median household income
$63,048$82,952
Median home value
$203,700$335,000
Median gross rent
$796$1,098

Age & race/ethnicity

Age distribution (share)

Blaine CountyJefferson County
Under 53.1%7.4%
5 to 1716.4%25.4%
18 to 247.5%9.0%
25 to 349.8%10.9%
35 to 4412.3%14.3%
45 to 5412.8%10.7%
55 to 6416.1%10.6%
65 to 7413.5%7.5%
75 and over8.4%4.1%

Race & ethnicity (share)

Blaine CountyJefferson County
White (non-Hispanic)72.7%86.1%
Black or African American0.4%0.1%
American Indian & Alaska Native0.9%0.6%
Asian0.5%0.1%
Native Hawaiian & Pacific Islander0.0%0.0%
Some other race0.2%0.2%
Two or more races3.9%2.2%
Hispanic or Latino21.2%10.8%

Educational attainment (age 25+)

Share of adults 25+

Blaine CountyJefferson County
No high school diploma8.8%6.7%
High school graduate21.7%26.7%
Some college or associate's24.0%39.4%
Bachelor's degree33.1%19.3%
Graduate or professional degree12.5%7.8%

Commute to work

How workers get to work (share)

Blaine CountyJefferson County
Drove alone71.0%78.6%
Carpooled7.0%9.5%
Public transit1.0%2.4%
Walked3.3%1.5%
Bicycle2.7%0.0%
Worked from home13.3%7.3%
Other means1.7%0.6%

Housing

Units in structure (share)

Blaine CountyJefferson County
1-unit, detached63.4%84.9%
1-unit, attached3.9%2.1%
2 to 4 units13.8%3.8%
5 to 19 units13.4%1.4%
20 or more units3.7%0.4%
Mobile home & other1.8%7.3%

Poverty & households

Blaine CountyJefferson County
Poverty rate7.4%9.2%
Average household size2.463.24
Mean commute (minutes)1825
Median year structure built19871991

Full profiles

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Blaine County vs Jefferson County: Compare Population & Demographics | US Census Data