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The total population of Plainfield is estimated to be 381 with 184 males (48.29%) and 197 females (51.71%). There are 13 more females than males in Plainfield.
The median household income in Plainfield was $75,664 in 2021, which marked an an increase of 8,525(12.70%) from $67,139 in 2020. This income is 101.42% 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, Plainfield sees its highest median household income among householders in the age group of 25 to 44 years old, at $79,717. Overall, the median household income for the city of Plainfield stands at $75,664.
In Plainfield, the median income for all workers aged 15 years and older, regardless of work hours, was $58,400 for males and $25,334 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $65,305 for males and $46,184 for females.
In Plainfield, population is primarily represented by White households, reporting a median income of $76,564.
In 2022, the population of Plainfield was 393, a 0.26% increase year-by-year from 2021. Previously, in 2021, Plainfield's population was 392, an increase of 0.26% compared to a population of 391 in 2020.
The median age in Plainfield, IA is 40.0, as per 2021 ACS 5-Year Estimates. Of the total population, 19.73% were under the age of 15, 20.81% aged 15 to 29, 45.41% aged 30 to 64, 13.78% aged 65 to 84, and 0.27% were 85 years of age and older.
Racial distribution of Plainfield population: 95.14% are White, 0.54% are Native Hawaiian and other Pacific Islander and 4.32% are multiracial.