United States › Iowa › Plymouth CITY
Plymouth Iowa · 366 residents (2025 est.) · 0.44 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2020 ACS 2021 ACS 2022 ACS 2023 ACS
The short version
Plymouth is home to 407 people in Iowa. 11% of adults hold a bachelor's degree, below the 36% national rate. Home values have more than doubled since 2000, reaching $125,700. The foreign-born share is 0%. 78% of homes are owner-occupied. Median rent is $831 a month.
At a glance
Average income
near the US median
US median: $82,259
Mid-age
median age 38.8
US median: 38.9
Less educated
11% hold a bachelor's degree
US average: 36%
Less affordable
home values up 30%, inflation adjusted
US median home: $376,019
Section 01
Population & growth from 429 in 2000
366 in 2025 (Census Bureau estimate)
923 / sq mi
+15%since 2009
from 803 / sq mi in 2009
US average: 281
from 39.0 in 2000
US average: 38.9
Population, 1990 – 2024
333 367 401 434 468 1990 2000 2010 2020 2024 Plymouth Age distribution, 2024
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Section 02
Income & economy $80,000
+36%inflation adjusted, since 2000
from $32,344 in 2000
US average: $82,259
from $12,888 in 2000
US average: $44,673
Households earning $100K+
from 16.2% in 2009
US average: 53.3%
from 6.3% in 2000
US average: 12.5%
from 0.316 in 2010
US average: 0.476
Workforce by industry, 2024
Professional, scientific, technical 10.3%
Agriculture, forestry, fishing 3.4%
Transportation & warehousing 2.6%
Education & health services 2.1%
Arts, entertainment, food 1.7%
Public administration 1.3%
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$125,700
+30%inflation adjusted, since 2000
from $52,900 in 2000
US average: $376,019
$831
+37%inflation adjusted, since 2000
from $332 in 2000
US average: $1,442
from 81.7% in 2000
21.9% rent
from 7.8% in 2009
US average: 10.0%
2.54 people
+10%since 2009
from 2.30 people in 2009
US average: 2.54
from 11.8% in 2009
US average: 22.9%
from 40.0% in 2009
US average: 47.4%
from 1.8 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity 2000
White, non-Hispanic 97.9%(420)
2024
White, non-Hispanic 97.1%(395)
from 12 in 2009
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 6 more ancestry groups with data from 6.5% in 2000
US average: 35.6%
High school or higher
from 86.6% in 2000
US average: 89.6%
from 0.3% in 2000
US average: 14.0%
Section 06
Commute & transportation from 16.1 min in 2000
US average: 26.5
from 82.5% in 2009
US average: 68.9%
from 14.1% in 2009
US average: 8.5%
from 0.0% in 2009
US average: 3.2%
from 1.9% in 2009
US average: 15.0%
from 1.5% in 2009
US average: 2.4%
from 0.0% in 2009
US average: 0.4%
from 1.3% in 2009
US average: 8.3%
Section 07
Work & employment from 3.4% in 2011
US average: 5.2%
from 70.1% in 2011
US average: 63.5%
Women 20-64 in the labor force
from 78.3% in 2020
US average: 74.6%
from 4.4% in 2009
US average: 13.1%
from 20.1% in 2009
US average: 42.5%
Section 08
People & community from 0.0% in 2009
US average: 14.1%
from 6.3% in 2009
US average: 6.2%
from 13.9% in 2012
US average: 13.3%
from 5.7% in 2013
US average: 8.4%
from 81.6% in 2017
US average: 91.0%
Computer in household
from 91.0% in 2020
US average: 95.5%
from 83.5% in 2020
US average: 87.7%
from 97.5% in 2016
US average: 77.7%
from 1.3% in 2016
US average: 13.6%
Marital status
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 5.7% in 2013
US average: 8.4%
from 56.2% in 2020
US average: 54.8%
Direct-purchase
from 16.7% in 2020
US average: 13.8%
from 14.8% in 2020
US average: 18.4%
from 30.7% in 2020
US average: 20.9%
VA health care
from 3.6% in 2020
US average: 2.2%
Any private
from 70.4% in 2020
US average: 67.1%
Any public
from 44.0% 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) 22.2%(4)
Share of the 18 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.
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Frequently asked
How many people live in Plymouth, Iowa? Plymouth, Iowa has about 407 residents according to the 2024 American Community Survey.
What is the median household income in Plymouth, Iowa? The typical household in Plymouth, Iowa earns about $80,000 a year. Half of households make more than that, and half make less.
Is Plymouth, Iowa expensive? In Plymouth, Iowa, the median home is worth about $125,700, and the typical rent is about $831 a month.
How educated are people in Plymouth, Iowa? About 11.2% of adults age 25 and over in Plymouth, Iowa hold a bachelor's degree or higher.
What is the poverty rate in Plymouth, Iowa? About 13.0% of people in Plymouth, Iowa live below the federal poverty line.
Has Plymouth, Iowa grown since 1990? Yes, Plymouth, Iowa has shrunk since 1990. The population has lost about 41 residents, a change of about -9 percent over that period.
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