The population continued to decline in Marion and most other area counties in the past year.
The U.S. Census Bureau 2018 population estimate for Marion County shows another 201 residents have left the county, dropping the population to 37,620. The loss represents half of one percent of the county’s population. Marion County has lost 1,817 people since the 2010 U.S. Census, which is nearly five percent of the county’s population.
Jefferson County lost an estimated 291 people in the past year to drop its estimated population to 37,820. Jefferson County has lost 1,007 people since the 2010 Census, or about 2.5% of its population.
Fayette County’s population dropped an estimated 119 residents to 21,416. Fayette County has lost 726 people since the 2010 Census.
Wayne County’s population is down an estimated 110 residents to 16,332. The drop from the 2010 Census is estimated at 428 residents.
Clinton County and Washington County both saw population increases in 2018. Washington County gained an estimated 44 residents, but is still down 721 residents since the 2010 Census. Clinton County gained 32 people in the 2018 estimate. Its 32,762 estimated population is 123 more than the 2010 Census.
The U.S. Census Bureau says as a whole an estimated 45,116 residents left Illinois between 2017 and 2018.