Cary is the seventh-largest municipality in North Carolina. Cary is in Wake and Chatham counties in the U.S. state of North Carolina. Located almost entirely in Wake County, it is the second-largest municipality in that county and the third-largest municipality in The Triangle after Raleigh and Durham. The town's population was 135,234 as of the 2010 census (an increase of 43.1% since 2000), making it the largest town and seventh-largest municipality statewide. The U.S. Census Bureau estimates the town's population to be 159,769 as of July 1, 2015.