Plain City, Ohio Demographics & Population 2026
During the 2020–2024 ACS period, Plain City, Ohio had a total population of 3,829, the 342nd largest village in Ohio, with a median household income of $117,972, which is 65% higher than the state average. The poverty rate is 3.5%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 65% above the state average — one of the wealthiest communities in Ohio.
- An exceptionally low poverty rate of 3.5% — among the lowest in Ohio.
Plain City Quick Facts
How Plain City Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 3,712 | 3,829 | +3.2% |
| Median household income | $87,018 | $117,972 | +35.6% |
| Median home value | $325,400 | $368,500 | +13.2% |
How Plain City Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Plain City Rankings in Ohio
Explore Ohio Rankings
Other Cities in Union County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Marysville | 27,518 | $92,619 | 6.7% | $300,800 |
| Richwood | 2,332 | $64,007 | 13.1% | $180,300 |
| New California | 1,672 | $161,908 | 0.0% | $464,500 |
| Milford Center | 770 | $93,125 | 2.5% | $197,100 |
| Raymond | 415 | $118,950 | 27.7% | $325,800 |
| Magnetic Springs | 359 | $77,813 | 17.8% | $137,500 |
| Unionville Center | 269 | $104,545 | 3.7% | $182,500 |
Cities Similar to Plain City
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Sherwood | 3,808 | $125,729 | $301,200 | 55.4% | 4.2% |
| Sixteen Mile Stand | 3,666 | $126,118 | $622,500 | 74.4% | 6.6% |
| Mount Repose | 3,798 | $102,031 | $253,500 | 41.0% | 2.8% |
| Cherry Grove | 4,176 | $117,994 | $291,100 | 58.2% | 2.0% |
| Hunter | 3,551 | $127,411 | $251,700 | 31.4% | 3.0% |
Population Overview
Plain City is a small community located in Ohio, within Union County. The total population is 3,829. It ranks as the 342nd most populous out of 1,264 Census-designated places in Ohio.
Age Demographics
The median age in Plain City is 36.0 years. This is 9% lower than the state median of 39.7 years.
Economy, Income & Housing
The median household income in Plain City is $117,972. This is 65% higher than the state median of $71,389. It is also 46% higher than the national median of $80,734. The poverty rate stands at 3.5%. This is 73% lower than the state poverty rate of 13.3%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 2.7%. This is 43% lower than the state rate of 4.8%. The median home value is $368,500. Housing costs are 72% higher than the state median of $214,800. The home-value-to-income ratio is 3.1x. 82.0% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 67.2%.
Race & Ethnicity
Plain City has a predominantly White (non-Hispanic) population, comprising 94.8% of all residents. Hispanic or Latino residents account for 2.3%. The Hispanic or Latino population (2.3%) is well below the state average of 4.8%. The Asian population (0.7%) is well below the state average of 2.5%.
Education
43.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 38% higher than the state rate of 31.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 97.9%.
Data Sources & Methodology
All demographic data for Plain City, Ohio is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Ohio state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,264 Census-designated places in Ohio. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Plain City, Ohio?
Plain City, Ohio has a population of 3,829 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Plain City, OH?
The median household income in Plain City is $117,972, which is 46% higher than the national median of $80,734.
What is the poverty rate in Plain City, OH?
The poverty rate in Plain City is 3.5%. This means approximately 135 residents live below the federal poverty line.
What is the racial makeup of Plain City, Ohio?
Plain City's population is 94.8% White, 0.0% Black, 2.3% Hispanic/Latino, and 0.7% Asian.
What is the median home value in Plain City, OH?
The median home value in Plain City is $368,500. The home-value-to-income ratio is 3.1x.
How educated is Plain City, Ohio?
43.5% of adults (25+) in Plain City hold a bachelor's degree or higher, and 14.9% hold a graduate or professional degree.