Richland County

Calhoun
Claremont
Noble
Olney
Parkersburg
HASC code :US-IL-RI
FIPS 6-4 code :17159
Capital :Olney
Largest city :Olney
Elevation :High : Calhoun 540 ft
Low : Noble 478 ft
Population :16,149
Land Area :360 sq mi
(932 km²)
Density :44.86/sq mi
(17.32/km²)
Time zone :UTC -6