Back مقاطعة ريتشلاند (إلينوي) Arabic Richland County, Illinois BAR Ричлънд (окръг, Илинойс) Bulgarian রিচল্যান্ড কাউন্টি, ইলিনয়স BPY Richland Gông (Illinois) CDO Ричленд (гуо, Иллинойс) CE Richland County (kondado sa Tinipong Bansa, Illinois) CEB Richland County, Illinois Welsh Richland County (Illinois) German Richland County, Illinois English
Richland County is a county in the U.S. state of Illinois. In the 2020 census, 15,813 people lived there.[1] The county seat is Olney.
Richland County was founded on February 24, 1841.
- ↑ "QuickFacts: Richland County, Illinois". United States Census Bureau. Retrieved August 11, 2023.