Greene County is a county in Ohio, United States, part of the Dayton metropolitan area. It had a population of 167,966 at the 2020 census and covers 416 square miles (1,080 km2) of land and water combined, centred near 39°41′N 83°53′W.
Xenia is the county seat, and its postal code is 45385. The county has six incorporated cities and villages plus dozens of unincorporated communities and two census-designated places, organized into 12 civil townships. Greene County sits in the Eastern time zone.
Towns & Villages in Greene County
Greene County has three cities, four villages, two census-designated places, and roughly 40 smaller unincorporated communities scattered across its 12 townships. Beavercreek is the largest city; Xenia is the county seat. The table below uses “CDP” for census-designated places and “Unincorp.” for communities with no incorporated government. Ten mobile-home-park subdivisions from older gazetteers (Buckeye, Fairborn, Huber, Maple Grove, Red Oak, South Point Village, Thomas, Upper Valley, Waynetta and Womacks) are private developments rather than distinct named places and are omitted here.
| Place | Type | Township | Pop. | ZIP |
|---|---|---|---|---|
| Xenia | City · seat | Xenia | — | 45385 |
| Beavercreek | City | Beavercreek | — | — |
| Fairborn | City | — | — | 45324 |
| Bellbrook | City | Sugarcreek | — | 45305 |
| Cedarville | Village | Cedarville | — | 45314 |
| Jamestown | Village | Silvercreek | — | 45335 |
| Yellow Springs | Village | Miami | — | 45387 |
| Spring Valley | Village | Spring Valley | — | 45370 |
| Wilberforce | CDP | Xenia | — | 45384 |
| Wright-Patterson AFB | CDP | Bath | — | — |
| Bowersville | Village | — | — | 45307 |
| Clifton | Village | Miami | — | 45316 |
| Alpha | Unincorp. | — | — | 45301 |
| Byron | Unincorp. | — | — | — |
| Cornstalk | Unincorp. | — | — | — |
| Ferry | Unincorp. | — | — | — |
| Five Points | Unincorp. | — | — | — |
| Gladstone | Unincorp. | — | — | — |
| Goes | Unincorp. | — | — | — |
| Grape Grove | Unincorp. | — | — | — |
| Gunnerville | Unincorp. | — | — | — |
| Knollwood | Unincorp. | — | — | — |
| Maple Corner | Unincorp. | — | — | — |
| Middleton Corner | Unincorp. | — | — | — |
| Monroe | Unincorp. | — | — | — |
| Mount Saint John | Unincorp. | Cedarville | — | — |
| New Germany | Unincorp. | — | — | — |
| New Jasper | Unincorp. | New Jasper | — | — |
| Oldtown | Unincorp. | — | — | — |
| Paintersville | Unincorp. | Caesarscreek | — | — |
| Park Hills Crossing | Unincorp. | — | — | — |
| Pattersons Corner | Unincorp. | — | — | — |
| Pinewood Village | Unincorp. | — | — | — |
| Pleasant View | Unincorp. | — | — | — |
| Roxanna | Unincorp. | — | — | — |
| Shawnee Hills | Unincorp. | Xenia | — | — |
| Silver Springs | Unincorp. | — | — | — |
| Spring Valley Estates | Unincorp. | Spring Valley | — | — |
| Stringtown | Unincorp. | — | — | — |
| Trebein | Unincorp. | Bath | — | — |
| Valleywood | Unincorp. | — | — | — |
| Washington Mills | Unincorp. | — | — | — |
| Whites Corner | Unincorp. | — | — | — |
| Woodland Hills | Unincorp. | — | — | — |
| Wrightview | Unincorp. | — | — | — |
| Zimmerman | Unincorp. | — | — | — |
Kettering, a large Dayton suburb, is dropped from the list above: its city limits lie almost entirely in Montgomery County, with only a sliver historically touching Greene County’s edge, so it belongs on the Montgomery County page rather than here.
Townships
Verified 2020 population figures per township were not available for this update; the table lists each township’s main built-up settlement instead.
| Township | Pop. (2020) | Main settlements |
|---|---|---|
| Bath | — | Wright-Patterson AFB, Trebein |
| Beavercreek | — | Beavercreek |
| Caesarscreek | — | Paintersville |
| Cedarville | — | Cedarville, Mount Saint John |
| Jefferson | — | — |
| Miami | — | Yellow Springs, Clifton |
| New Jasper | — | New Jasper |
| Ross | — | — |
| Silvercreek | — | Jamestown |
| Spring Valley | — | Spring Valley, Spring Valley Estates |
| Sugarcreek | — | Bellbrook |
| Xenia | — | Xenia, Wilberforce, Shawnee Hills |
ZIP Codes
- 45385 — Xenia
- 45324 — Fairborn
- 45305 — Bellbrook
- 45314 — Cedarville
- 45335 — Jamestown
- 45370 — Spring Valley
- 45387 — Yellow Springs
- 45301 — Alpha (PO Box only)
- 45307 — Bowersville (PO Box only)
- 45316 — Clifton (PO Box only)
- 45384 — Wilberforce (PO Box only)
- 45431, 45432, 45433, 45434, 45435 — Dayton (also serve the Wright-Patterson AFB area of northeastern Greene County)
Beavercreek shares its ZIP codes with neighboring Dayton addresses rather than having a dedicated town code of its own.
Geography
Greene County lies on the till plains of southwestern Ohio, drained by the Little Miami River, which runs through Xenia and Yellow Springs on its way toward the Ohio River, and by Massies Creek and Caesar Creek. The terrain is gently rolling farmland broken by wooded stream valleys; Clifton Gorge and John Bryan State Park, along the Little Miami near Clifton, are the county’s most dramatic landscape features.
Greene County borders Clark County to the north, Madison County to the northeast, Fayette County to the southeast, Clinton County to the south, Warren County to the southwest, and Montgomery County to the west.
Demographics
Greene County had 167,966 residents at the 2020 census, spread over 414 square miles of land, for a density of roughly 406 people per square mile. Beavercreek and Fairborn are the county’s two largest cities. The county’s median household income was about $70,055 (2020 ACS), above the Ohio median of $67,769.
Economy & Local Life
Wright-Patterson Air Force Base, straddling Greene and Montgomery counties, is the largest single-site employer in Ohio and anchors the county’s economy in aerospace research, logistics and defense contracting; the National Museum of the United States Air Force sits on the base and is a major regional draw. Higher education is a second pillar: Wright State University in Fairborn, Cedarville University, and Central State University and Wilberforce University near Wilberforce together enroll tens of thousands of students. Beavercreek hosts the county’s largest retail corridor along Ohio 35, and the city holds an annual Popcorn Festival each September that draws crowds from across the Dayton area.
History
Greene County was organized on March 24, 1803, one of the original counties formed as Ohio entered the Union, and was named for General Nathanael Greene, a Continental Army officer of the Revolutionary War. Wilberforce University, founded in 1856 near Xenia, is the oldest private historically Black university in the United States. On April 3, 1974, an F5 tornado tore through Xenia during a major regional outbreak, killing 32 people and destroying much of the town’s downtown and half its schools; the disaster reshaped the city’s rebuilding and remains a defining event in local memory.
Getting There
Interstate 675 loops through the northwestern part of the county, connecting to Interstate 70 and Interstate 75 in Dayton, while US 35, US 42 and US 68 cross the county and meet at Xenia’s historic six-way traffic circle.
- Dayton — about 10 miles northwest
- Columbus — about 65 miles east
- Cincinnati — about 55 miles southwest
- Springfield — about 20 miles north
Dayton International Airport, roughly 20 miles from Xenia, is the nearest commercial airport.
Frequently Asked Questions
Where is Greene County, Ohio?
It sits in the southwestern part of Ohio, part of the Dayton metropolitan area, between Dayton and Columbus.
What is the population of Greene County?
167,966 at the 2020 census.
How big is Greene County?
416 square miles (1,080 km2), including 414 square miles of land.
What is the county seat of Greene County?
Xenia is the county seat.
How many towns and villages are in Greene County?
Three cities, four villages, two census-designated places and dozens of smaller unincorporated communities across 12 townships.
What ZIP codes are in Greene County?
Codes include 45385 (Xenia), 45324 (Fairborn), 45305 (Bellbrook), 45314 (Cedarville), 45335 (Jamestown), 45370 (Spring Valley) and 45387 (Yellow Springs), plus several Dayton-addressed codes in the northeast.
What is Wright-Patterson AFB?
It is the largest single-site employer in Ohio and home to the National Museum of the United States Air Force, located in Bath Township near Fairborn.
More counties in this state: Towns and villages in Ohio.