Plymouth
Plymouth has roughly average household income, with a median household income of $80,000. Population has declined 5% since 2000. 11% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $125,700.
Population & growth
PEP 2025 EST:366 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Education
Commute & transportation
Work & employment
People & community
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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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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024