Union County, Ohio Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Union County, OH Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageAmong the top 3 healthiest counties in Ohio
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B
Income Around averageAmong the top 5 wealthiest counties in Ohio
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B
Education Around averageBetter educated than 93% of counties in Ohio
Source: Map AI Methodology
Population: density and quick facts
| Metric | Union County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Population | 67,322 | 11,799,428 | 337,468,954 |
| Population density (per sq mi) | 154.1 | 263.2 | 86.4 |
| Population growth (%/yr) | 2.82% | 0.23% | 0.59% |
| Median age | 36.6 | 38.5 | 37.3 |
| Households | 24,231 | 4,857,236 | 130,235,071 |
Population in Union County grew by 42.0% from 2009 to 2024, reaching 67,322 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Union County is Millennials, aged 29–44, at 24.3% of residents. That is 3.2 points above Ohio as a whole.
- Gen Z 13–28 13,268 19.7% -1.1 pts
- Millennials 29–44 16,362 24.3% +3.2 pts
- Gen X 45–60 15,214 22.6% +2.5 pts
- Boomers 61–79 8,671 12.9% -5.2 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Ohio, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 51.8% of the people living in Union County and men 48.2%.
- Women 51.8% Ohio 50.8%
- Men 48.2% Ohio 49.2%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Union County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Union County has a the economy index of B, which means it is quite prosperous.
| Metric | Union County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Median household income | $111,904 | $71,509 | $80,455 |
| Income growth (%/yr) | 5.83% | 4.38% | 4.80% |
| Unemployment rate | 2.6% | 4.8% | 5.2% |
The median household income in Union County is about 56% higher than in Ohio.
Housing
| Metric | Union County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Median home price | $242,497 | $139,044 | $248,835 |
| Median rent | $1,246 | $1,033 | $1,407 |
| Homeownership rate | 79.2% | 67.2% | 65.2% |
The median home price in Union County is about 16.2 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,246 per month for that long.
Commute Time & Mobility
Commuters in Union County spend about 47 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 195 hours, about 8.1 full days, spent commuting.
| Metric | Union County | Ohio Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.4 | 21.1 | 22.4 |
| Round-trip commute (min) | 46.9 | 42.2 | 44.8 |
| Yearly time spent (hours) | 195 | 176 | 187 |
| Estimated yearly cost | $6,057 | $5,447 | $5,790 |
| Work from home | 21.6% | 13.0% | 15.0% |
| Highway traffic (vehicles/day) | 9,398 | 8,648 | 8,813 |
| Local road traffic (vehicles/day) | 1,182 | 1,212 | 1,355 |
Fastest commutes among counties in
Ohio:
Hancock County (15.3 min), Van Wert County (15.5 min), Mercer County (16.0 min).
Slowest:
Morgan County (32.5 min), Vinton County (32.0 min), Brown County (32.0 min).
The average commute time in Union County is 23 minutes, longer than the 21 minutes in Ohio.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Union County has a education index of B, which means it is quite educated.
| Metric | Union County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 36.5% | 28.1% | 31.6% |
| Average household size | 2.67 | 2.37 | 2.53 |
Highest education index among counties in
Ohio:
Delaware County (0.4), Warren County (0.4), Greene County (0.3).
Lowest:
Holmes County (0.1), Vinton County (0.2), Noble County (0.2).
Health
Union County has a health index of B, which means it is quite healthy.
| Metric | Union County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 78.5 | 77.0 | 78.3 |
| Self-rated poor health | 12.0% | 17.2% | 16.3% |
| Smokers | 19.6% | 24.3% | 19.0% |
Highest health index among counties in
Ohio:
Delaware County (0.8), Union County (0.8), Warren County (0.8).
Lowest:
Adams County (0.8), Holmes County (0.8), Scioto County (0.8).
Union County, OH Compared With Nearby Counties
Union County, OH is the 2nd largest of the 6 counties compared here, 67,322 residents against a local median of 46,089. Where Union County, OH breaks from the counties next to it is median household income, sitting 48% above the local median of $75,502 at $111,904. That is the better end of the local range on this measure.
The counties themselves spread $74,618 on median household income, so Union County, OH sits at one end of an already wide local range rather than apart from it. Union County, OH has the 2nd highest median household income of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Union County, OH | 67,322 | $111,904 #2/6 | $242,497 #4/6 | 23.4 min #4/6 |
| Marion County, OH | 65,020 | $59,541 | $150,236 | 17.3 min |
| Delaware County, OH | 226,834 | $134,160 | $454,424 | 23.8 min |
| Logan County, OH | 46,089 | $71,742 | $89,001 | 18.4 min |
| Madison County, OH | 44,416 | $88,282 | $268,005 | 25.2 min |
| Champaign County, OH | 38,804 | $75,502 | $252,679 | 22.7 min |
Frequently Asked Questions
Common questions about Union County, Ohio.
How many people live in Union County, Ohio?
About 67,322 people live in Union County, Ohio, in 24,231 households of 2.7 people on average. The median age is 36.6, close to the U.S. median of 37.3.
Is Union County, Ohio mostly urban or rural?
Averaged over its land area, Union County, Ohio has 154 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 1.8 times the U.S. average of 86.
How affordable is housing in Union County, Ohio?
The median home costs 2.2 times the median household income ($242,497 against $111,904), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,246 a month takes about 13% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How strong is the job market in Union County, Ohio?
Unemployment in Union County, Ohio is only 2.6%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
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