Union County Ohio population growth isn’t just a statistic it’s a story that’s reshaping the entire region, and if you’re thinking about buying a home, investing in real estate, or simply wondering where Ohio’s future is being built, this is the place you need to know about.
Let’s be real: most people don’t expect a county in central Ohio to outpace nearly every other market in the state. Yet here we are and the numbers don’t lie.
By the Numbers: How Fast Is Union County Growing?
Union County has added over 40% to its population since 2010, climbing from roughly 52,000 residents to an estimated 73,677 as of 2025. That’s not suburban sprawl, that’s a full-scale population migration. Among all 88 counties in Ohio, Union County ranks as one of the fastest growing counties in Ohio, adding 1,463 residents between 2024 and 2025 alone.
For context, most Ohio counties are stagnant or shrinking. Cleveland lost population. Toledo went negative. Union County kept growing.
The question isn’t whether it’s growing. It’s why and more importantly, what that means for you.
What’s Actually Driving Union County Ohio Growth?
- Proximity to Columbus Without the Columbus Price Tag
Union County sits right on the doorstep of one of the fastest-growing metro areas in the country. Columbus proper is booming, but Columbus housing prices have surged dramatically. Union County and especially Marysville Ohio growth offers that sweet spot: close enough for an easy commute, far enough to afford a real yard.
Buyers priced out of Dublin, Powell, or Hilliard are heading northwest on US-33 and US-42, and they’re finding value.
- Major Employment Anchors
Union County isn’t just a bedroom community. The county is home to significant manufacturing and industrial employers, including a major Honda of America facility that has been an economic backbone for decades. Job growth in Union County has outpaced regional, state, and national averages, with over 35,000 people currently employed in the county. The local economy is diversified enough to support long-term Union County Ohio development even through national economic shifts.
- Affordability Relative to the Metro
The Union County Ohio housing market remains more accessible than much of the Columbus metro. Marysville’s median home price hovers around $436,000, meaningful, but significantly below comparable homes in Dublin or Powell. Plain City Ohio growth tells a similar story, with a thriving new construction market where buyers are finding modern builds without the premium price of eastern Columbus suburbs.
- Infrastructure and Community Investment
Union County commissioners have proactively addressed growth with infrastructure planning, school improvements, and zoning that accommodates both residential and commercial expansion. This kind of forward-thinking Union County Ohio community development doesn’t happen by accident, it’s the result of local leaders who understand that growth must be steered, not just experienced.
The Union County Ohio Real Estate Market in 2026
If you’re watching the Union County Ohio real estate market, here’s what you need to know right now:
- Median home prices are up 5.1% year-over-year, sitting around $474,000
- New construction activity is vigorous across Marysville, Plain City, and surrounding communities
- Plain City Ohio growth has produced thriving developments like Darby Fields, Darby Station, and Jerome Village drawing buyers seeking modern builds with community amenities
- Marysville Ohio population growth has made the city the economic and residential hub of the county, with expanding retail, dining, and services following the rooftops
For investors, this convergence of population growth, employment stability, and relative affordability creates a compelling case for Union County Ohio property investment. Demand isn’t slowing down and housing supply, while improving through Union County Ohio new construction, hasn’t fully caught up.
Is Union County Ohio a Good Place to Live?
Short answer: yes, and here’s why people keep choosing it.
Union County scores high on the metrics that matter most to families and professionals:
- Low poverty rate of just over 5%, well below state and national averages
- Median household income of $109,506 a strong indicator of community economic health
- Top-rated schools that attract families relocating from Columbus
- Safe, tight-knit communities with genuine small-town character that larger suburbs have long since lost
- Room to grow both personally and in terms of your home’s future value
Between the charm of Marysville Ohio and the newer development corridors of Plain City Ohio, residents get access to a lifestyle that blends suburban convenience with genuine community feel.
Union County Ohio Real Estate Opportunities: What Buyers and Investors Should Know
Whether you’re searching for homes for sale in Union County Ohio or evaluating Union County Ohio real estate opportunities from an investment perspective, here’s the smart-money take:
The exurban migration trend that accelerated post-pandemic isn’t reversing. Census data confirms that people are choosing more affordable, spacious communities over dense urban living and Union County perfectly mirrors that national shift. Developers are following the population out to cheaper land, which means new inventory is coming, but so is continued demand.
For buyers, acting sooner means locking in before the next wave of appreciation. For investors, the combination of steady rental demand, new construction activity, and long-term population projections (Union County is expected to grow another 33.7% by 2040) makes this a market worth serious attention.
Why Trust Us
Connolly Companies is a third-generation, family-owned real estate development firm rooted in Marysville, Ohio since 1947. For nearly eight decades, Connolly Companies has been building communities where people actually want to live not just developments, but neighborhoods with lasting value. When we talk about Union County’s growth, we’re not reading about it from the outside. We’re living in it, building in it, and invested in its future every single day.
Frequently Asked Questions
Why is Union County Ohio growing so fast?
Strong job growth, Columbus proximity, affordable housing, and infrastructure investments continue attracting families, businesses, and new residents.
What is Union County Ohio’s population in 2025?
Union County’s estimated 2025 population is approximately 73,677, reflecting steady annual growth and long-term expansion.
Is the Union County Ohio housing market competitive?
Yes. Demand remains strong, especially for new construction homes in Marysville, Plain City, and surrounding communities.
Are home prices rising in Union County Ohio?
Yes. Median home prices increased year-over-year, supported by population growth and limited housing inventory.
Is Union County Ohio a good place for real estate investment?
Yes. Strong population growth, employment opportunities, and residential development support long-term property appreciation.
How much population growth is projected for Union County?
Union County is projected to grow approximately 33.7% between 2018 and 2040, among Ohio’s fastest-growing counties.
Why are families moving to Union County Ohio?
Families are attracted by quality schools, safer neighborhoods, affordable housing, and convenient access to Columbus jobs.
Conclusion: The Window Is Open But Not Forever
Union County Ohio population growth is not a trend that’s about to peak and reverse. The fundamentals are too strong: location, employment, affordability, and community quality all point in the same direction. Whether you’re a first-time buyer, a growing family looking for better schools and more space, or an investor looking for the next Central Ohio market to move to, Union County is the answer.
The communities being built here today will define where people choose to live for the next generation. The smart move is to get in front of that wave, not chase it from behind.
Ready to explore homes or investment opportunities in Union County, Ohio? Browse available properties and connect with our team.
Reference: census.gov/quickfacts/unioncountyohio