- State:IowaCounty:Johnson CountyZips:52243,52244,52241,52755,52235,52322,52338,52340,52333,52246,52317,52245,52242,52241,52240Coordinates:41.67152501077654, -91.5881020375162Area total:623.06 sq. mi., 1613.73 sq. km, 398760.32 acresArea land:612.99 sq. mi., 1587.64 sq. km, 392314.24 acresArea water:10.07 sq. mi., 26.09 sq. km, 6446.08 acresEstablished:1837Capital seat:
Iowa City
Address: 913 S Dubuque St
County Administration Building
Iowa City, IA 52240-4273
Governing Body: Board of Supervisors with 5 board size
Governing Authority: Home Rule
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Johnson County, Iowa, United States
- Website:
- Population:152,854; Population change: 16.79% (2010 - 2020)Population density:249 persons per square mileHousehold income:$50,406Households:7,808Unemployment rate:4.80% per 84,088 county labor force
- Sales taxes:6.00%Income taxes:8.98%GDP:$8.08 B, gross domestic product (GDP)
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Johnson County's population of Iowa of 19,206 residents in 1930 has increased 1,07-fold to 20,646 residents after 90 years, according to the official 2020 census. U.S. Bureau of the Census beginning in 1900. Data for 1870-1890 are on a de facto or unspecified basis; data for 1900 and later years are resident totals.
Approximately 47.35% female residents and 52.65% male residents live in as of 2020, 59.82% in Johnson County, Iowa are married and the remaining 40.18% are single population.
As of 2020, 59.82% in Johnson County, Iowa are married and the remaining 40.18% are single population.
- Housing units:65,916 residential units of which 93.05% share occupied residential units.
19.6 minutes is the average time that residents in Johnson County require for a one-way commute to work. A long commute can have different effects on health. A Gallup poll in the US found that in terms of mental health, long haul commuters are up to 12 percent more likely to experience worry, and ten percent less likely to feel well rested. The Gallup poll also found that of people who commute 61–90 minutes each day, a whopping one third complained of neck and back pain, compared to less than a quarter of people who only spend ten minutes getting to work.
69.42% of the working population which commute to work alone in their car, 11.53% of the working population which commutes to work in a carpool, 5.00% of the population that commutes using mass transit, including bus, light rail, subway, and ferry. 3.02% of the population that has their home as their principal place of work.
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Of the total residential buildings in Johnson County, Iowa 55.02% are owner-occupied homes, another 39.27% are rented apartments, and the remaining 5.71% are vacant.
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The 35.60% of the population in Johnson County, Iowa who identify themselves as belonging to a religion are distributed among the following most diverse religions.
Since the 1860s, the two main parties have been the Republican Party (here in 2022 = 28.400%) and the Democratic Party (here in 2022 = 69.910%) of those eligible to vote in Johnson County, Iowa.
