Bel Air South is located southwest of the center of Harford County at 39°30′10″N 76°19′8″W (39.502757, −76.318971). It is bordered to the north by the town of Bel Air (the Harford County seat) and the Bel Air North CDP. It is bordered to the south by Edgewood.
Zip Codes in Bel Air South, MD that we also serve: 21009 21015 21014