Westlake is a city in Cuyahoga County, Ohio, United States. The population was 32,729 at the 2010 census. It is an affluent suburb of Cleveland located 12 miles west of downtown Cleveland.

Westlake is located at 41°27′16″N 81°55′43″W / 41.45444°N 81.92861°W / 41.45444; -81.92861 (41.454439, -81.928657).

According to the United States Census Bureau, the city has a total area of 15.93 square miles (41.26 km²), all land.

The median income for a household in the city was $64,963, and the median income for a family was $81,223 (these figures had changed to $63,252 and $90,397 respectively as of a 2007 estimate). Males had a median income of $60,429 versus $36,999 for females. The per capita income for the city was $37,142. About 1.3% of families and 2.5% of the population were below the poverty line, including 1.7% of those under age 18 and 2.8% of those age 65 or over. Of the city's population over the age of 25, 50.1% hold a bachelor's degree or higher.

89.3% spoke English, 1.6% Arabic, 1.5% Spanish, 1.3% Greek, and 0.7% German and Chinese.

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