Plain City Population

1880–2026

4,376

2026 projection

7.7% since 2020 (increase)

01K2K3K4K5K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Plain City. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20264,376+541.25%
20254,322-511.17%
20244,373+220.51%
20234,351+80.18%
20224,343-200.46%
20214,363+2987.33%
20204,065+932.34%
20193,972+1122.90%
20183,860-250.64%
20173,885-370.94%

Showing 10 of 30 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Growth since 2020, compared

Plain City is growing faster than Ohio and the U.S., and slower than Madison County.

  • Madison County+7.1%
  • Plain City+4.0%
  • United States+3.1%
  • Ohio+0.9%

Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.

Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.

Plain City Demographics

36median age

Median age

Female40.8 yrs
Male34.2 yrs

Adults

2,840
590 seniors (65+) · 21% of adults2,250 other adults

Sex

Female 48.2% · 1,846Male 51.8% · 1,983

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 38 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Plain City Income

$117,972median household income

Median household income

$117,972

Half of households earn more, half earn less

Median earnings

$67,549

Typical yearly pay for a worker 25 or older.

Poverty rate

3.5%

About 1 in 28 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Plain City Marital Status

58% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married58%60%55%
Never married26%35%17%
Divorced8%4%14%
Widowed7%1%13%
Separated<1%0%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201