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Henderson County, IL
10 cities and towns and 9 ZIP codes in Henderson County, Illinois.
Population
6,193
Land area
379sq mi
People per sq mi
16
ZIP codes
9
Cities and towns in Henderson County
Henderson County at a glance
- Henderson County is 93% less dense than Illinois as a whole.
- The median household income is $62,227, 25% below the Illinois median of $83,390.
- A typical owner-occupied home is valued at $104,400 (60% below Illinois) and median rent is $764 a month.
- Its largest cities are Oquawka (1,059), Stronghurst (949) and Dallas City (894).
Local data for Henderson County, IL
Counts from official public data
Housing and community stats
Henderson County, IL, American Community Survey 2020-2024
Median household income
$62,227
Poverty rate
13.9%
Median home value
$104,400
Prices +11.1% in a year
Median rent
$764/mo
Homeownership
81.1%
Bachelor's or higher
20.6%
Median age
50.2
Average commute
26.1 min
Largest reported origins and ancestries: German Americans (1,482), Irish Americans (854), Swedish Americans (323).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.2%
Sep 2026, -0.5 pts in a year
Average annual pay
$47,267
1,176 jobs, 2025
Income per person
$55,143
BEA, 2024
Federal spending
$62.3M
FY 2026, $9,748 per person
PPP loans
$9M
419 loans, 1,063 jobs reported
Campaign donations
$14.6K
Itemized, 2026 cycle
How people get to work
Henderson County, IL, workers 16 and older. American Community Survey 5-year estimates
- Drove alone88.8%
- Carpooled5.8%
- Public transit0.3%
- Walked0.9%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home4.2%
Average one-way commute: 26.1 minutes for people who do not work from home.
Environment and hazard risk
Henderson County, IL, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: drought
Storm events since 1996
379
Most often thunderstorm wind
Flood insurance policies
75
2.1% of homes, county
July high / Jan low
86° / 16°F
37.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone3 historic places
Health statistics
Share of adults in Henderson County, IL, CDC PLACES estimates
Obesity
38.6%
U.S. 33.3% +5.3 pts
Diabetes
14.1%
U.S. 12.1% +2.0 pts
Smoking
15.1%
U.S. 12.8% +2.3 pts
Uninsured (18-64)
7.6%
U.S. 11.1% -3.5 pts
Cities, towns and ZIP codes in Henderson County
Population shown
Frequently asked questions
- What is the largest city in Henderson County, IL?
- Oquawka is the largest city or town in Henderson County, with about 1,059 residents.
- How many ZIP codes are in Henderson County?
- Henderson County includes 9 ZIP Code Tabulation Areas, including 61418, 61425, 61437, 61453, 61454.
- What is the population of Henderson County, IL?
- About 6,193 people live in Henderson County, based on American Community Survey 5-year estimates.
- What counties border Henderson County?
- Henderson County borders Des Moines County, IA, Lee County, IA, McDonough County, Hancock County, Warren County, Mercer County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023