
Alley-Carlson House · National Register of Historic Places
Jefferson’s story
185 years in pictures
Census counts: 988 in 1860, a peak of 4,190 in 1870, 1,875 in 2020. The archive holds 12 old photos and papers going back to 1872 and 2 maps from 1962 on.
18 places on the National Register of Historic Places.
Explore the history →
Getting set upMoving to Jefferson: who provides what
Who provides power, water and the rest in Jefferson, and how to reach them.
The full setup list →EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.