Muhlenberg County was formed in 1798 from Logan and Christian counties. Muhlenberg was then the 34th county to be founded in Kentucky. The county was named after General Peter Muhlenburg, who was a colonial general during the American Revolutionary War. Though it is the county seat to Grennville, the counties largest city is Central City and has a population count over 30,000 while the total area is 479 square miles.