United States › Iowa › Plymouth County COUNTY · 1990 CENSUS
Plymouth County Iowa · 23,388 residents · 863 sq mi
Time machine
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The short version
Plymouth County is home to 23,388 people in Iowa. The typical home is worth $48,100. 75% of homes are owner-occupied. Renters pay $298 a month at the median. About 15% of adults have finished a four-year degree. The poverty rate is 9.0%, under the national 13.2%.
At a glance
Lower income
below the US median
US median: $30,130
Mid-age
median age 34.1
US median: 33.0
Less educated
15% hold a bachelor's degree
US average: 20%
More affordable
home values down 30%, inflation adjusted
US median home: $93,722
Section 01
Population & growth vs 37.8 in 2000
US average: 33.0
Population, 1990 – 2024
23K 24K 25K 25K 26K 1990 2000 2010 2020 2024 Plymouth County Age distribution, 1990
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy $26,796
−15%inflation adjusted, since 2000
vs $41,638 in 2000
US average: $30,130
vs $19,442 in 2000
US average: $14,340
vs 6.0% in 2000
US average: 13.2%
$48,100
−30%inflation adjusted, since 2000
vs $90,100 in 2000
US average: $93,722
$298
−6%inflation adjusted, since 2000
vs $416 in 2000
US average: $450
vs 77.5% in 2000
25.2% rent
Section 04
Race & ethnicity 2000
White, non-Hispanic 97.4%(24,215)
Hispanic / Latino 1.3%(328)
1990
White, non-Hispanic 99.6%(23,299)
Hispanic / Latino 0.1%(33)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Detailed origin tables are available for 2024; showing 2024 data.
Ancestry
+ 22 more ancestry groups with data vs 19.3% in 2000
US average: 20.3%
High school or higher
vs 87.4% in 2000
US average: 75.2%
vs 4.5% in 2000
US average: 7.1%
Section 06
Commute & transportation vs 13.3 min in 2000
US average: 21.9
Section 07
Work & employment No data for the years selected.
Section 08
People & community No data for the years selected.
Marital status (2024)
Men 15+
Never married 29.3%(3,046)
Women 15+
Never married 22.3%(2,252)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage Showing 2024 (the nearest year with coverage data).
from 5.9% in 2013
US average: 8.4%
from 59.5% in 2020
US average: 54.8%
Direct-purchase
from 18.5% in 2020
US average: 13.8%
from 18.8% in 2020
US average: 18.4%
from 15.0% in 2020
US average: 20.9%
VA health care
from 2.6% in 2020
US average: 2.2%
Any private
from 77.2% in 2020
US average: 67.1%
Any public
from 31.8% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2024
Gulf War (2001 or later) 14.6%(195)
Share of the 1,334 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Drill deeper
Places similar to Plymouth County Head to head
Compare Plymouth County to nearby counties PLYMOUTH COUNTY VS
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PLYMOUTH COUNTY VS
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PLYMOUTH COUNTY VS
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PLYMOUTH COUNTY VS
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Income $71,269 +166%
Home value $158,700 +230%
Population 11,369 −56%
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Frequently asked
How many people live in Plymouth County, Iowa? Plymouth County, Iowa has about 23,388 residents according to the 1990 Census.
What is the median household income in Plymouth County, Iowa? The typical household in Plymouth County, Iowa earns about $26,796 a year. Half of households make more than that, and half make less.
Is Plymouth County, Iowa expensive? In Plymouth County, Iowa, the median home is worth about $48,100, and the typical rent is about $298 a month.
How educated are people in Plymouth County, Iowa? About 15.0% of adults age 25 and over in Plymouth County, Iowa hold a bachelor's degree or higher.
What is the poverty rate in Plymouth County, Iowa? About 9.0% of people in Plymouth County, Iowa live below the federal poverty line.
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