Mason, Ohio

Mason, Ohio
An aerial view of Mason
Motto: 
"More than you imagine."
Location of Mason in Warren County
Mason
Mason
Coordinates: 39°22′00″N 84°17′43″W / 39.36667°N 84.29528°W / 39.36667; -84.29528
CountryUnited States
StateOhio
CountyWarren
Government
  TypeMayor-council
  MayorDiana K. Nelson
Area
  Total
19.28 sq mi (49.93 km2)
  Land19.26 sq mi (49.89 km2)
  Water0.02 sq mi (0.04 km2)
Elevation
794 ft (242 m)
Population
 (2020)
  Total
34,792
  Density1,806.25/sq mi (697.41/km2)
Time zoneUTC-5 (Eastern (EST))
  Summer (DST)UTC-4 (EDT)
ZIP code
45040
Area code513
FIPS code39-48188
GNIS feature ID2395039
Websiteimaginemason.org

Mason is a city in southwestern Warren County, Ohio, United States, approximately 22 miles (35 km) north of downtown Cincinnati. As of the 2020 census, Mason's population was 34,792. It is home to Kings Island amusement park and one of the largest tennis stadiums in the world, the Lindner Family Tennis Center, home of the Cincinnati Open, one of the world's top tennis tournaments for both men and women.