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The total population of Plymouth County is estimated to be 25,621 with 13,013 males (50.79%) and 12,608 females (49.21%). There are 405 less females than males in Plymouth County.
The median household income in Plymouth County was $80,246 in 2021, which marked an a decrease of 374(0.46%) from $80,620 in 2020. This income is 107.56% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Plymouth County sees its highest median household income among householders in the age group of 45 to 64 years old, at $96,594. Overall, the median household income for the county of Plymouth County stands at $80,246.
In Plymouth County, the median income for all workers aged 15 years and older, regardless of work hours, was $51,153 for males and $30,955 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $60,953 for males and $47,230 for females.
In Plymouth County, there are just three different racial groups among households. Among these, Some Other Race households report a median household income of $105,558, followed by White households at $80,673, and Two or More Races households with a median household income of $49,758.
In 2022, the population of Plymouth County was 25,681, a 0.13% decrease year-by-year from 2021. Previously, in 2021, Plymouth County's population was 25,714, an increase of 0.10% compared to a population of 25,689 in 2020.
The median age in Plymouth County, IA is 40.4, as per 2021 ACS 5-Year Estimates. Of the total population, 20.52% were under the age of 15, 17.36% aged 15 to 29, 43.55% aged 30 to 64, 14.97% aged 65 to 84, and 3.59% were 85 years of age and older.
Racial distribution of Plymouth County population: 93.58% are White, 1.71% are Black or African American, 0.51% are American Indian and Alaska Native, 0.40% are Asian, 0.28% are Native Hawaiian and other Pacific Islander, 2.18% are some other race and 1.34% are multiracial.