Adger is an unincorporated crossroads community in Jefferson County, Alabama, southwest of Birmingham.
Adger has a post office, two grocery stores, and several churches. Local businesses include construction, roofing, plumbing, hauling, and heavy equipment operation.
The community is served by a volunteer fire department as well as a Neighborhood Watch office, which doubles as a working office for Jefferson County sheriff's deputies who patrol the area. It is governed by the Jefferson County Commission and the various departments and facets of the County Government.
The town is named for Andrew M. Adger, originally of Charleston, South Carolina. Mr. Adger moved to Bessemer, Alabama, when he became an investor in and secretary-treasurer of the Bessemer Land & Improvement Company. He also was an operating officer of the Debardeleben Coal & Iron Company. Adger is a rural community that arose in the late 1880s during development of Debardeleben's Adger, Johns, and Belle Sumter mines in the Blue Creek Coal Basin.