Wilmer is an unincorporated community in Mobile County, Alabama, United States.

[3] A post office first opened under the name Wilmer in 1894.

[5] In the 1990's Wilmer gained notoriety for changing the local speed limit on six different occasions in a short period of time, in large part reportedly as part of a speed trap scheme to raise local revenues.

[9] Wilmer is located in southwest Alabama northwest of Mobile and near the Alabama-Mississippi border.

The community lies on U.S. Route 98 and is two miles northwest of Big Creek Lake.