Dayton city, Ohio
Official LSAD Designation: Dayton city • Census GEOID: 3921000
• Greene County / Montgomery County
Dayton city is an incorporated city in Greene County, Montgomery County, Ohio. According to official records from the Census (2025), Dayton city had an estimated population of 136,688 residents. Official Census Bureau geographic records classify this community under LSAD designation Dayton city (GEOID 3921000).
Local Government Administration U.S. Census Bureau GMAF
City Of Dayton
Municipal
Official Title:
Mayor
Address:
101 W 3RD ST, FL 2, DAYTON OH 45402-1859
County Of Greene
County
Official Title:
County Administrator
Address:
69 GREENE ST, XENIA OH 45385-3101
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 136,688 | 2025 |
| Median Household Income | $45,247 | 2020-2024 |
| Median Home Value | $100,600 | 2020-2024 |
| Land Area | 55.79 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).