Mayfield Heights Cuyahoga CountyOhio www.mayfieldheights.org Map Population 18,376 (2020)Type CityArea 4.17 sq mi (10.8 km²), 0.01 sq mi waterGovernment CITY OF MAYFIELD HEIGHTSGovernment office 6154 MAYFIELD RD, MAYFIELD HEIGHTS, OH 44124