The Town Files

Warren County, Illinois

16,447 people. The median home is worth $105,000 (typical Illinois town: $156,600) and the median household earns $67,385.

Towns in Warren County

Towns in Warren County

TownPeopleMedian homeIncomeMedian age
Monmouth8,902$86,800$61,13834.1

People and housing

Warren CountyTypical Illinois town
Median home value$105,000$156,600
Median rent$788$960
Median household income$67,385$72,500
Median age38.540.4
Bachelor's degree or higher22.0%21.8%
Below the poverty line14.6%9.9%

Jobs and pay

6,368 jobs in 2024, average pay $45,522 a year.

Largest industries in Warren CountyManufacturing1,997 jobs · $56,078Hotels & restaurants503 jobs · $17,718Retail498 jobs · $34,571Agriculture, forestry & fishi…269 jobs · $55,244Transportation & warehousing266 jobs · $58,005Wholesale trade232 jobs · $66,574
BLS QCEW 2024.
Unemployment rate in Warren County0%2%4%6%8%2000200420082012201620202023 4.2%
BLS LAUS via USDA ERS, annual averages.

Storms since 1996

NOAA recorded 443 storm events in Warren County from 1996 to 2026.

Storm events in Warren County by type since 1996Hail66Drought17Tornado29Dense Fog9High Wind8Ice Storm10Heavy Snow11Flash Flood19Winter Storm51Winter Weather44
NOAA NCEI Storm Events Database.

Federal disaster declarations

Warren County has been included in 9 FEMA declarations since 1953.

DeclaredIncidentDeclaration
August 15, 2023Severe StormDR-4728: Severe Storms And Flooding
March 26, 2020BiologicalDR-4489: Covid-19 Pandemic
March 13, 2020BiologicalEM-3435: Covid-19
May 10, 2013FloodDR-4116: Severe Storms, Straight-Line Winds, And Flooding
March 17, 2011SnowstormDR-1960: Severe Winter Storm And Snowstorm
September 25, 2007Severe StormDR-1729: Severe Storms And Flooding
Sources: U.S. Census Bureau ACS 2020–2024; BLS QCEW and LAUS; NOAA Storm Events; FEMA OpenFEMA (not endorsed by FEMA).