Strongsville, OH is currently using one area code which is area code 440. Area Code 440 was created from a split of area code 216 and put into service on August 16, 1997.
In addition to Strongsville, OH area code 440 serves northeastern Ohio including the larger cities and communities of Ashtabula, Eastlake, Elyria, Lorain, Mentor, North Olmsted, North Ridgeville, North Royalton, Parma, Parma Heights, Rocky River, Solon, Strongsville, Westlake, and Willoughby in addition to many smaller communities.
Strongsville, OH is located in Cuyahoga County and observes the Eastern Time Zone. View our Times by Area Code tool.