There are 12 US Post Offices in Christian County serving a total of 34,110 residents equating to 2,843 residents per post office. It's estimated that approximately 54,443 packages are handled across the 12 county post offices annually. Christian County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 34,800. Its county seat is Taylorville. Christian County comprises the Taylorville, IL Micropolitan Statistical Area, which is also included in the Springfield-Jacksonville-Lincoln, IL Combined Statistical Area."