Statistic Plainfield Iowa National
Population 405 3,155,070 328,239,523
Population density (sq mi) 1,209 57 91
Median age 39.3 38.0 37.7
Male/Female ratio 1.0:1 1.0:1 1.0:1
Married (15yrs & older) 57% 60% 55%
Families w/ Kids under 18 45% 44% 43%
Speak English 99% 92% 79%
Speak Spanish 0% 4% 13%
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Demographics Quick Facts

  • The population density in Plainfield is 2021% higher than Iowa
  • The median age in Plainfield is 3% higher than Iowa
  • In Plainfield 98.52% of the population is White
  • In Plainfield 0.00% of the population is Black
  • In Plainfield 0.00% of the population is Asian

Compare Plainfield, IA Demographics

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      Plainfield population breakdown by race

      Race Plainfield Iowa National
      White 98.52% 90.90% 73.35%
      Black 0.00% 3.32% 12.63%
      Asian 0.00% 2.14% 5.22%
      American Indian 0.00% 0.32% 0.82%
      Native Hawaiian 0.00% 0.08% 0.18%
      Mixed race 1.48% 1.97% 3.06%
      Other race 0.00% 1.27% 4.75%
      In Plainfield, 0.0% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      Plainfield age breakdown

      Marital status

      Age of children in married couples

      Source: The Plainfield, IA demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS).