Hillgrove is an unincorporated community located in the southern San Gabriel Valley of eastern Los Angeles County, California.1960 U.S. Census of Population. Google Books. Retrieved 2010-08-26. The population in 1960 was 14,669.1960 U.S. Census of Population. Google Books. Retrieved 2010-08-26.
A former section was a census-designated place, that became part of neighboring Hacienda Heights after the 1970 census.1970 Census of Population. Retrieved 2010-08-26.
Geography Hillgrove is located at 34.017 degrees north latitude and 117.98 degrees west longitude. The community of Avocado Heights is to the west, the Puente Hills are to the south, and Hacienda Heights is to the southeast.
The elevation of the community is above sea level.Hillgrove, CA Community Profile from Hometown Locator. Retrieved 2010-08-26. The ZIP Code serving the community is 91745.Hillgrove, California 91745. Google. Retrieved 2010-08-26.
Education The community is part of the Hacienda-Puente Unified School District.Hacienda-Puente Unified School District. Retrieved 2010-08-26. Hillgrove Center Preschool is located in the community.Hillgrove Center. greatschools.org. Retrieved 2010-08-26.
References