209 years in pictures
Its founding year, 1817, comes before those of 97% of the Illinois towns we grade with a known year.
Census counts: 707 in 1860, 14,600 in 2020. The archive holds 18 old photos and papers going back to 1854 and 3 maps from 1933 on.
1 place on the National Register of Historic Places.
- 1817Mount Vernon is settled






