Iroquois County, Illinois
Iroquois County, Illinois, has 26,150 residents (July 2025 estimate). Its county seat is Watseka. It uses Central Time and covers 1,117 sq mi (2,894 km²) of land.
- Resident population, July 2025
- 26,150
- Land area
- 1,117 sq mi (2,894 km²)
- County seat or government
- Watseka
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $66,255 ± $2,456
- Median home value
- $137,800 ± $9,776
- Median rent, with utilities
- $799 ± $33
- Homes lived in by their owners
- 80% ± 1.8 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Kankakee, IL metro area, Danville, IL micro area, Champaign-Urbana, IL metro area, Lafayette-West Lafayette, IN metro area, and Chicago-Naperville-Elgin, IL-IN metro area
- Water area
- 1.62 sq mi (4.21 km²)
- State
- Illinois
- County code (FIPS)
- 17075
- Coordinates (central point)
- 40.748867, -87.833601
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 Iroquois County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-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
- 609705,991 people
- 609425,657 people
- 609644,777 people
- 609272,300 people
- 609222,088 people
- 609532,075 people
- 609382,035 people
- 609551,953 people
- 609481,660 people
- 609411,627 people
- 609241,565 people
- 609661,385 people
All 28
28 ZIP Code areas overlap Iroquois 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
Iroquois 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 Iroquois County, largest first
- Middleport Township3,645 people
- Chebanse Township2,811 people
- Belmont Township2,235 people
- Douglas Township1,933 people
- Onarga Township1,591 people
- Loda Township1,525 people
- Milford Township1,494 people
- Ashkum Township1,438 people
- Sheldon Township1,285 people
- Pigeon Grove Township1,221 people
- Martinton Township939 people
- Danforth Township846 people
All 26
- Artesia Township746 people
- Ash Grove Township615 people
- Lovejoy Township517 people
- Crescent Township482 people
- Iroquois Township465 people
- Ridgeland Township455 people
- Beaver Township448 people
- Beaverville Township408 people
- Concord Township370 people
- Papineau Township307 people
- Milks Grove Township224 people
- Fountain Creek Township213 people
- Prairie Green Township119 people
- Stockland Township117 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county
School districts in Iroquois County, largest first
- Herscher Community Unit School District 210,230 people
- Paxton-Buckley-Loda Community Unit School District 108,340 people
- Hoopeston Area Community Unit School District 116,974 people
- Iroquois County Community Unit School District 96,016 people
- Central Community Unit School District 45,763 people
- Iroquois West Community Unit School District 104,864 people
- Milford Area Public School District 1243,608 people
- Tri-Point Community Unit School District 6-J2,479 people
- Donovan Community Unit School District 31,974 people
- Cissna Park Community Unit School District 61,796 people
- Pembroke Consolidated Community School District 2591,480 people
- Crescent Iroquois Community Unit School District 249852 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.
- Watseka, Illinois (city)4,780 people
- Gilman, Illinois (city)1,612 people
- Onarga, Illinois (village)1,430 people
- Clifton, Illinois (village)1,385 people
- Sheldon, Illinois (village)1,195 people
- Milford, Illinois (village)1,052 people
- Chebanse, Illinois (village)920 people
- Ashkum, Illinois (village)918 people
- Cissna Park, Illinois (village)903 people
- Danforth, Illinois (village)611 people
- Crescent City, Illinois (village)456 people
- Buckley, Illinois (village)422 people
All 21
- Martinton, Illinois (village)363 people
- Woodland, Illinois (village)297 people
- Beaverville, Illinois (village)289 people
- Donovan, Illinois (village)281 people
- Loda, Illinois (village)279 people
- Thawville, Illinois (village)210 people
- Iroquois, Illinois (village)185 people
- Wellington, Illinois (village)165 people
- Papineau, Illinois (village)132 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Ford County, Illinois23 mi southwest
- Newton County, Indiana27 mi northeast
- Kankakee County, Illinois27 mi north
- Benton County, Indiana29 mi east
- Vermilion County, Illinois39 mi south
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.