Paris
RANK #347 / 996 NAT · #34 / 49 OH · POP 63,411
1YR FORECAST: +1.2%
5YR OUTLOOK: +28%
Marysville, the county seat, offers a blend of small-town charm and industrial heritage, evident in its historic district and the presence of major companies. Union County, located northwest of Columbus, Ohio, is known for its rural landscapes and commitment to preserving its natural beauty. The county's location provides access to Columbus, with commute options including carpooling and public transit services like GoBus and UCATS for eligible residents. Outdoor recreation is supported by over 40 parks, six golf courses, and numerous trails, including the Heritage Rail Trail, offering opportunities for hiking, biking, and enjoying the scenic deciduous landscape.
Life in Union County attracts families and professionals, drawn by highly-rated public schools and a close-knit community atmosphere. The economy is experiencing growth, with ongoing investments in advanced manufacturing and research and development, particularly in smart mobility and connected technologies along the 33 Smart Mobility Corridor. Healthcare is also seeing expansion to meet the needs of the growing population. This economic activity contributes to a demand for housing, as the county works to balance growth with maintaining its community character.
Above national median
Harsh climate or flat terrain
Above national median (13x)
Housing looks undervalued at 3.6x — home prices are low relative to local economic output. The typical U.S. county is 4–6x.
Estimated local headcount ranges. Larger employers shown as floor + "+"; smaller employers show exact counts where reported.
Source: Redfin · Census BPS — Browse sales on Redfin →
Source: CDC/NCHS vital statistics via County Health Rankings (2020–2022 avg). Rates per 100,000 population. Grade based on homicide rate relative to national average (~6.3). Learn more →
| PROJECT | AMOUNT | STATUS |
|---|---|---|
|
AWS Data Center Campus (Project Cosmos)
Amazon Web Services (AWS)
|
$1,000M | Planned |
|
Union Solar Farm
ACCIONA
|
$320M | Under Construction |
|
Richwood Solar
Richwood Solar
|
$250M | Proposed |
|
Cadence Solar Energy Center
Invenergy
|
$136M | Planned |
|
Memorial Health Emergency Department Expansion
Memorial Health
|
$56M | Planned |
|
Amazon Fulfillment Center
Amazon
|
$50M | Operating |
Source: public records, news, corporate announcements. Amounts are estimates where noted.
Bars show percentile rank among all 996 counties.
With a Boom Town Index score of 65/100, Union County sits in the upper half of all 996 ranked counties. Employment is expanding at +1.6%, and median household income stands at $104,496 — indicators that suggest solid fundamentals even if it's not among the fastest-growing counties in OH.
By national standards, Union County is quite affordable. Homes here have a median value of $282,900, and the income-to-home-value ratio of 0.37 is well above the U.S. average — especially with median rent at just $1,144/month. Residents can generally buy a home without being cost-burdened.
Union County is growing on multiple fronts. Population is up +2.7% year-over-year while employers added jobs at a +1.6% clip. Home values shifted +1.6% in the past year.
In significant numbers — 7.52% of Union County's current population relocated from another state, well above the national norm. That level of in-migration usually signals a county where jobs, affordability, or quality of life are pulling people in from elsewhere.