The Town FilesJefferson County, Illinois
36,550 people. The median home is worth $126,000 (typical Illinois town: $156,600) and the median household earns $63,118.
Towns in Jefferson County
| Town | People | Median home | Income | Median age |
|---|---|---|---|---|
| Mount Vernon | 14,600 | $99,800 | $55,357 | 38.9 |
People and housing
| Jefferson County | Typical Illinois town | |
|---|---|---|
| Median home value | $126,000 | $156,600 |
| Median rent | $885 | $960 |
| Median household income | $63,118 | $72,500 |
| Median age | 41.2 | 40.4 |
| Bachelor's degree or higher | 18.2% | 21.8% |
| Below the poverty line | 13.5% | 9.9% |
Jobs and pay
19,307 jobs in 2024, average pay $57,833 a year.
Storms since 1996
NOAA recorded 780 storm events in Jefferson County from 1996 to 2026, with 9 deaths.
Federal disaster declarations
Jefferson County has been included in 5 FEMA declarations since 1953.
| Declared | Incident | Declaration |
|---|---|---|
| March 26, 2020 | Biological | DR-4489: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3435: Covid-19 |
| June 7, 2011 | Severe Storm | DR-1991: Severe Storms And Flooding |
| September 7, 2005 | Hurricane | EM-3230: Hurricane Katrina Evacuation |
| May 21, 2002 | Tornado | DR-1416: Severe Storms, Tornadoes And Flooding |
Sources: U.S. Census Bureau ACS 2020–2024; BLS QCEW and LAUS; NOAA Storm Events; FEMA OpenFEMA (not endorsed by FEMA).