According to the United States Census Bureau, the CDP has a total area of 1.62 square miles (4.19 km²), all of it land. The community is 46 feet above sea level.
Aberdeen Gardens is located at 47°4′21″N 123°46′14″W (47.072449, -123.770557).
Wishkah and Nisson are north and connected by roads. New London is west, but you must drive into Aberdeen or through Nisson to get there. Forest wilderness and the Wynoochee Valley is east. Aberdeen is directly south by about 8 miles. Hoquiam is southwest and Central Park is southeast.