Mason, Ohio Demographics & Population 2026
During the 2020–2024 ACS period, Mason, Ohio had a total population of 35,509, the 39th largest city in Ohio, with a median household income of $125,401, which is 76% higher than the state average. The poverty rate is 3.6%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 76% above the state average — one of the wealthiest communities in Ohio.
- An exceptionally low poverty rate of 3.6% — among the lowest in Ohio.
- 60.4% of adults hold a bachelor's degree or higher — top 10% in Ohio.
- Near full employment with an unemployment rate of just 2.0%.
Mason Quick Facts
How Mason 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 | 35,148 | 35,509 | +1.0% |
| Median household income | $124,407 | $125,401 | +0.8% |
| Median home value | $397,900 | $426,200 | +7.1% |
How Mason 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
Moderate diversity with one or two groups making up the majority.
State average: 41 | National average: 61
Education
Educational Attainment (Adults 25+)
Mason Rankings in Ohio
Explore Ohio Rankings
Other Cities in Warren County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Lebanon | 21,501 | $83,685 | 8.7% | $290,200 |
| Franklin | 11,712 | $58,587 | 22.5% | $183,100 |
| Landen | 7,499 | $109,434 | 4.5% | $311,000 |
| South Lebanon | 6,712 | $104,511 | 6.4% | $319,200 |
| Blanchester | 4,538 | $54,583 | 13.2% | $195,700 |
| Hunter | 3,551 | $127,411 | 3.0% | $251,700 |
| Waynesville | 2,777 | $79,048 | 12.4% | $269,500 |
| Morrow | 2,523 | $82,260 | 6.6% | $302,900 |
| Maineville | 2,070 | $92,979 | 9.5% | $287,400 |
| Five Points | 2,031 | $144,293 | 1.9% | $515,300 |
Cities Similar to Mason
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Gahanna | 35,486 | $109,061 | $350,900 | 51.7% | 5.6% |
| Hilliard | 38,033 | $128,189 | $385,100 | 60.3% | 5.8% |
| Westlake | 34,104 | $112,200 | $368,200 | 60.2% | 4.9% |
| Upper Arlington | 36,293 | $155,167 | $595,600 | 79.8% | 3.3% |
| Westerville | 38,645 | $109,404 | $374,500 | 58.0% | 5.6% |
Population Overview
Mason is a mid-sized community located in Ohio, within Warren County. The total population is 35,509. It ranks as the 39th most populous out of 1,264 Census-designated places in Ohio.
Age Demographics
The median age in Mason is 42.4 years. This is 7% higher than the state median of 39.7 years.
Economy, Income & Housing
The median household income in Mason is $125,401. This is 76% higher than the state median of $71,389. It is also 55% higher than the national median of $80,734. The poverty rate stands at 3.6%. 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 2.0%. This is 58% lower than the state rate of 4.8%. The median home value is $426,200. Housing costs are 98% higher than the state median of $214,800. The home-value-to-income ratio is 3.4x. 80.1% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 67.2%.
Race & Ethnicity
The largest racial or ethnic group in Mason is White (non-Hispanic), making up 74.0% of the population. Asian residents account for 14.0%. The Black or African American population (5.0%) is well below the state average of 12.0%. The Asian population is significantly higher than the state average (14.0% vs 2.5%).
Education
60.4% of residents aged 25 and older hold a bachelor's degree or higher. This places Mason in the top 10% of all cities in the state for educational attainment. This is 92% 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 96.7%. Notably, 25.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Mason, 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.
Free data download: Get all Ohio city and county demographics as CSV. Download Cities CSV | Download Counties CSV
Frequently Asked Questions
What is the population of Mason, Ohio?
Mason, Ohio has a population of 35,509 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Mason, OH?
The median household income in Mason is $125,401, which is 55% higher than the national median of $80,734.
What is the poverty rate in Mason, OH?
The poverty rate in Mason is 3.6%. This means approximately 1,259 residents live below the federal poverty line.
What is the racial makeup of Mason, Ohio?
Mason's population is 74.0% White, 5.0% Black, 3.9% Hispanic/Latino, and 14.0% Asian.
What is the median home value in Mason, OH?
The median home value in Mason is $426,200. The home-value-to-income ratio is 3.4x.
How educated is Mason, Ohio?
60.4% of adults (25+) in Mason hold a bachelor's degree or higher, and 25.4% hold a graduate or professional degree.