Map of San Castle CDP
San Castle is an unincorporated community and census-designated place in Palm Beach County, Florida, United States. Its population was 3,755 as of the 2020 census. San Castle is located between Interstate 95 and the Intracoastal Waterway; it borders Lantana to the south, Hypoluxo to the west and Boynton Beach to the northeast. San Castle CDP … Read more