Deerfield
RANK #734 / 996 NAT · #48 / 49 OH · POP 243,189
1YR FORECAST: +1.2%
5YR OUTLOOK: +18%
Known as "Ohio's Largest Playground," Warren County is located in southwestern Ohio, positioned between the major cities of Dayton and Cincinnati. The county is home to Kings Island Amusement Park, a significant regional attraction. Commuting to either Cincinnati or Dayton is common, with access to Interstates 71 and 75. The average one-way commute for residents is approximately 25.6 minutes. The area offers outdoor recreation opportunities, including Caesar Creek State Park for hiking and boating, and the Little Miami Scenic River for paddling.
Warren County offers a quality of life that attracts families, with highly-rated public school districts such as Mason City School District and Springboro Community City School District. The county maintains a family-friendly atmosphere and is recognized for its safety. The economy is experiencing growth, with recent investments in sectors like data centers, industrial and logistics operations, and advanced manufacturing. These developments contribute to job creation and a diverse economic landscape within the county.
Above national median (4.7x)
Above national median
Below-average climate & terrain
Below national median (13x)
Housing is fairly valued at 4.7x 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 →
Source: EPA Air Quality System (2021–2023). Grade based on 3-year average median AQI. Learn about AQI →
| PROJECT | AMOUNT | STATUS |
|---|---|---|
|
Amazon Data Center
Amazon
|
$3,000M | Planned |
|
Ultium Cells Battery Cell Manufacturing Facility
Ultium Cells LLC (GM & LG Energy Solution joint venture)
|
$2,300M | Operating |
|
C5 Encore Logistics Center
Core5 Industrial Partners
|
$100M | Under Construction |
|
Amazon Delivery Facility (Turtlecreek Township)
Amazon
|
$50M | Planned |
|
S.R. 48 Signalization & Widening (South Lebanon)
Warren County Engineer's Office
|
$50M | Under Construction |
|
Cincinnati Zoo Solar Farm
Cincinnati Zoo / Rocknoll Energy
|
$28M | Under Construction |
Source: public records, news, corporate announcements. Amounts are estimates where noted.
Bars show percentile rank among all 996 counties.
At 26/100, Warren County faces headwinds that place it in the lower third of the 996 counties we track. Median income of $103,128 combined with job growth of -0.3% suggests the local economy is struggling to keep pace with national trends.
By national standards, Warren County is quite affordable. Homes here have a median value of $290,900, and the income-to-home-value ratio of 0.35 is well above the U.S. average — especially with median rent at just $1,254/month. Residents can generally buy a home without being cost-burdened.
Warren County's population is growing — up +1.5% YoY — while the job market is roughly flat (employment change of -0.3%). Home values shifted +1.5% over the past year. In-migration is outpacing local hiring, which often points to remote workers or retirees driving the headcount.
In significant numbers — 5.27% of Warren 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.