Jackson is a village in Washington County, Wisconsin, United States. The population was 7,185 at the 2020 census. The village is adjacent to the Town of Jackson. Cedar Creek, a tributary of the Milwaukee River runs also through the southeastern part of the Village of Jackson. Hasmer Lake is located on the west side of the village, near U.S. Route 45. The 2,3…Jackson is a village in Washington County, Wisconsin, United States. The population was 7,185 at the 2020 census. The village is adjacent to the Town of Jackson. Cedar Creek, a tributary of the Milwaukee River runs also through the southeastern part of the Village of Jackson. Hasmer Lake is located on the west side of the village, near U.S. Route 45. The 2,312-acre Jackson Marsh Wildlife Area, which is maintained by the Wisconsin Department of Natural Resources, is located in the Town of Jackson, near the village's eastern boundary.