Wilmer is a city in Dallas County, Texas, United States. The population was 3,393 at the 2000 census. A July 1, 2008 U.S. Census Bureau estimate placed the population at 3,576. It is part of the Dallas, Texas–Fort Worth–Arlington Metropolitan Statistical Area.
Union Pacific's Dallas Intermodal Terminal is located partly in the city of Wilmer and partly in the city of Hutchins. The shipping facility, was built by AUI Contractors LP, Prime Rail Interests Inc. and Halff Associates, Inc. is a 70 million U.S. dollar project.
Wilmer is located at 32°35′27″N 96°40′57″W / 32.59083°N 96.6825°W / 32.59083; -96.6825 (32.590743, -96.682619). It is situated along Interstate 45 in southeastern Dallas County, approximately 14 miles south of downtown Dallas.