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is a rural town in south-central Baldwin County, Alabama, United States. It is the site of the
. At the 2000 census the population was 655. It is part of the Daphne–Fairhope–Foley Micropolitan Statistical Area.
Summerdale is located at 30°29'15.468" North, 87°42'4.036" West (30.487630, -87.701121).
According to the U.S. Census Bureau, the town has a total area of 5.2 square miles (13.5 km²), all of it land.