On Seward Highway and The Alaska Railroad, on NE shore of Turnagain Arm, 11 mi. NE of Sunrise and 35 mi. SE of Anchorage, Chugach Mts.
Named for James E. Girdwood, a miner, who came to the area in 1896 (DeArmond, 1962, p. 40-41). The Girdwood post office was established in 1907 (Ricks, 1965, p. 23).