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Dayton


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Dayton, Ohio
City
City of Dayton
Skyline of Dayton, Ohio
Flag of Dayton, Ohio
Flag
Official seal of Dayton, Ohio
Seal
Nickname(s): 
The Gem City
Motto(s): 
Birthplace of Aviation
Location in Montgomery County and the state of Ohio.
Location in Montgomery County and the state of Ohio.
Coordinates: 39°45′34″N 84°11′30″W / 39.75944°N 84.19167°W / 39.75944; -84.19167Coordinates: 39°45′34″N 84°11′30″W / 39.75944°N 84.19167°W / 39.75944; -84.19167
Country United States
State Ohio
County Montgomery
Founded 1796
  1805 (city)
Government
 • Mayor Nan Whaley (D)
Area
[1]
 • City 56.50 sq mi (146.33 km2)
 • Land 55.65 sq mi (144.13 km2)
 • Water 0.85 sq mi (2.20 km2)
Elevation
738 ft (225 m)
Population
 (2010)[2]
 • City 141,759
 • Estimate 
(2018)[3]
140,640
 • Rank US: 189th
 • Density 2,543.2/sq mi (981.9/km2)
 • Urban
724,091 (US: 59th)
 • Metro
799,232 (US: 71st)
Time zone UTC-5 (EST)
 • Summer (DST) UTC-4 (EDT)
ZIP codes
ZIP codes[4]
  • 45400-45406, 45408-45410, 45412-45420, 45422-45424, 45426-45435, 45437, 45439-45441, 45448-45449, 45454, 45458-45459, 45469-45470, 45475, 45479, 45481-45482, 45490
Area code 937
FIPS code 39113
GNIS feature ID 1064514
Website daytonohio.gov