Mar Opdyke

Opdyke is a census-designated place in the southeastern part of Jefferson County, Illinois, United States. As of the 2010 census, its population was 254. Opdyke was laid out in 1871, following construction of the St. Louis & Southeastern Railroad. The nearby, earlier town of Lynchburg was largely abandoned and moved to Opdyke.
  • Elevation: 515 ft (157 m)
  • Country: United States
  • State: Illinois
  • County: Jefferson
  • Township: Pendleton
  • Area code: 618
  • FIPS code: 17-56198
Data from: en.wikipedia.org