Jefferson County

Jefferson County has 33,154 residents across 7 ZIP codes with their own report. Median household income is $86,679, 11% above the Idaho figure. The typical owner-occupied home is valued at $408,400, and 27% of adults 25 and over hold a bachelor’s degree or higher.

County · ACS 2020–2024 · Updated October 24, 2026

33,154residentsACS 2020–2024

$86,679median household incomeIdaho: $78K

$408,400median home valueowner-occupied homes

95%of households have broadbandhome internet subscription

Jefferson County in IdahoZIP codes in Jefferson County highlighted; the rest of Idaho in grey

Map of Idaho with Jefferson County highlighted

Sources: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates · U.S. Census Bureau, 2024 Gazetteer and 2020 ZCTA relationship files

All 7 ZIP codes.

Colour shows where each zip code sits among the others in the table, from lowest to highest.

ZIP code	Residents	Household income	Home value	Owners	Bachelor's+	Broadband	Commute
83425	622	$81K	$227K	70%	19%	90%	30 min
83431	1,045	$91K	$242K	78%	22%	89%	24 min
83434	1,816	$83K	$277K	79%	20%	95%	31 min
83435	600	$74K	$221K	57%	20%	92%	22 min
83442	25,609	$88K	$449K	87%	30%	95%	26 min
83444	1,261	$88K	$263K	63%	9%	96%	33 min
83450	1,207	$70K	$231K	59%	13%	92%	25 min

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

People.

33,154 residents in 10,199 households, next to the Idaho figure.

32%

under 18

20%

aged 18–34

12%

aged 65 and over

14%

of households are people living alone

72%

of households are married couples

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Homes.

10,779 housing units; the median owner-occupied home is valued at $408,400 (±$21,935).

83%

of households own their home

85%

of homes are detached single-family houses

are in buildings with 5 or more units

are mobile homes

of housing units are vacant

$1,138

median gross rent a month

When homes were built

2020 or later4%

2010–201918%

2000–200921%

1990–199911%

1980–19895%

1970–197917%

1960–19694%

1950–19594%

1940–19494%

1939 or earlier12%

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Income and work.

Household income and work, in 2024 dollars; median household income ±$3,818.

$86,679

median household income

9.7%

of people live below the poverty line

2.7%

unemployment rate

27%

of adults 25+ hold a bachelor’s degree or higher

The poverty rate uses the federal poverty thresholds, which vary with family size. It says nothing on its own about what a neighborhood is like to live in.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Getting around.

How workers aged 16 and over get to work, and how long it takes.

27 min

average commute to work

12%

of commuters travel 45 minutes or more

88%

of workers drive or carpool

take public transportation

walk or bike

work from home

of households have no car

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates

Internet.

Home internet subscriptions.

95%

of households have a broadband subscription

have no internet access at home

American Community Survey figures are estimates from a rolling sample, averaged over 2020–2024. Each comes with a margin of error, which is wider in places with fewer people.

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates