O'Brien County

O'Brien County has 14,126 residents across 8 ZIP codes with their own report. Median household income is $68,356, 9% below the Iowa figure. The typical owner-occupied home is valued at $173,100, and 22% of adults 25 and over hold a bachelor’s degree or higher.

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

14,126residentsACS 2020–2024

$68,356median household incomeIowa: $75K

$173,100median home valueowner-occupied homes

90%of households have broadbandhome internet subscription

O'Brien County in IowaZIP codes in O'Brien County highlighted; the rest of Iowa in grey

Map of Iowa with O'Brien 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 8 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
51009	113	$59K	$83K	96%	21%	86%	21 min
51022	960	$97K	$175K	89%	20%	81%	14 min
51046	1,326	$84K	$160K	76%	20%	86%	20 min
51058	1,096	$63K	$133K	82%	20%	87%	22 min
51231	562	$108K	$190K	94%	34%	93%	29 min
51245	1,377	$70K	$150K	79%	24%	95%	29 min
51248	1,534	$64K	$173K	76%	21%	83%	20 min
51346	2,247	$72K	$157K	83%	22%	89%	23 min

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

People.

14,126 residents in 5,809 households, next to the Iowa figure.

24%

under 18

20%

aged 18–34

21%

aged 65 and over

30%

of households are people living alone

56%

of households are married couples

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

Homes.

6,564 housing units; the median owner-occupied home is valued at $173,100 (±$9,272).

76%

of households own their home

83%

of homes are detached single-family houses

are in buildings with 5 or more units

are mobile homes

12%

of housing units are vacant

$868

median gross rent a month

When homes were built

2020 or later1%

2010–20194%

2000–20097%

1990–19997%

1980–19897%

1970–197912%

1960–196910%

1950–195917%

1940–19497%

1939 or earlier28%

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 ±$4,388.

$68,356

median household income

13.3%

of people live below the poverty line

1.0%

unemployment rate

22%

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.

21 min

average commute to work

of commuters travel 45 minutes or more

89%

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.

90%

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