About This Place
Boulder Creek is a census-designated place (CDP) in Santa Cruz County, California, United States. The population was 4,923 at the 2010 census.
Boulder Creek is located at 37°7′30″N 122°7′30″W / 37.125°N 122.125°W / 37.125; -122.125 (37.125, -122.125).
According to the United States Census Bureau, the CDP has a total area of 7.5 square miles (19.5 km²), all of it land.