Eldred is a village in Greene County, Illinois, United States. The population was 149 at the 2020 census. Eldred was founded because of its situation in the Illinois River Bottoms as a town that combined the values of a river and a bluff-side village. Eldred first appeared on river plat books as "Farrow Town" in the 1830s, but was founded sometime before the a…Eldred is a village in Greene County, Illinois, United States. The population was 149 at the 2020 census. Eldred was founded because of its situation in the Illinois River Bottoms as a town that combined the values of a river and a bluff-side village. Eldred first appeared on river plat books as "Farrow Town" in the 1830s, but was founded sometime before the admittance of Illinois as a state in 1818. A few of its original founders, were of Scotch-Irish ancestry from the Upland South.