As of the 2020 census, its population was 1,373 (down from 1,464 at 2010[3]) and it contained 613 housing units.

[5] Elijah Rawley was one of the first settlers in what became Lewis Township, arriving in about 1823, and built a mill on the Eel River near "Old Hill.

[7] In fact, according to a 1902 article, when the county was organized in 1825, " 'The Old Hill' was the most frequented and noted point within its borders.

"[8] From 1848 until 1853, a Carrithers Township existed, and the voting place was at Rawley's, at the intersection of current County Roads 525W and 600 South.

[3] (This list is based on USGS data and may include former settlements.)