May we count your visit with Google Analytics? It uses cookies and sends visit data to Google. You can change this any time under Cookie choices. Privacy

Where am ILOCATED

Henderson County, Illinois

Henderson County, Illinois, has 5,984 residents (July 2025 estimate). Its county seat is Oquawka. It uses Central Time and covers 379 sq mi (981 km²) of land.

ChicagoAurora
Henderson County in Illinois
Warren CountyDes Moines CountyLee CountyOquawkaStronghurstLomaxBiggsville
Henderson County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
5,984
Land area
379 sq mi (981 km²)
County seat or government
Oquawka
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$62,227 ± $6,201
Median home value
$104,400 ± $9,004
Median rent, with utilities
$764 ± $73
Homes lived in by their owners
81.1% ± 2.4 points
County type
County
Metro or micro area
Burlington, IA-IL micro areaOutlying county
Water area
16.4 sq mi (42.6 km²)
State
Illinois
County code (FIPS)
17071
Coordinates (central point)
40.814471, -90.941246
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Henderson County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 6146210,458 people
  2. 614691,818 people
  3. 614501,812 people
  4. 623301,472 people
  5. 614801,236 people
  6. 614471,020 people
  7. 61453677 people
  8. 61425672 people
  9. 61454579 people
  10. 61418575 people
  11. 61476551 people
  12. 61437549 people
All 17
  1. 61442504 people
  2. 61478420 people
  3. 61460180 people
  4. 61475180 people
  5. 61471134 people

17 ZIP Code areas overlap Henderson County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Henderson County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Henderson County, largest first

  1. Oquawka Township1,659 people
  2. Stronghurst Township1,087 people
  3. Lomax Township740 people
  4. Gladstone Township732 people
  5. Biggsville Township494 people
  6. Carman Township483 people
  7. Rozetta Township311 people
  8. Media Township290 people
  9. Terre Haute Township174 people
  10. Raritan Township152 people
  11. Bald Bluff Township71 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county

School districts in Henderson County, largest first

  1. Mercer County School District 4047,985 people
  2. Illini West High School District 3077,567 people
  3. United Community School District 3045,900 people
  4. West Central Community Unit School District 2355,481 people
  5. West Prairie Community Unit School District 1034,435 people
  6. La Harpe Community School District 3472,038 people
  7. Dallas Elementary School District 3271,842 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Oquawka, Illinois (village)1,059 people
  2. Stronghurst, Illinois (village)949 people
  3. Dallas City, Illinois (city)894 people
  4. Lomax, Illinois (village)318 people
  5. Biggsville, Illinois (village)294 people
  6. Carman, Illinois (CDP)250 people
  7. Gladstone, Illinois (village)237 people
  8. Media, Illinois (village)153 people
  9. Raritan, Illinois (village)134 people
  10. Gulfport, Illinois (village)92 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Des Moines County, Iowa15 mi northwest
  2. Warren County, Illinois17 mi east
  3. McDonough County, Illinois28 mi southeast
  4. Mercer County, Illinois29 mi north
  5. Lee County, Iowa30 mi west
  6. Hancock County, Illinois31 mi southwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.