Knox County, Illinois
Knox County is a county in Illinois. Its county FIPS code is 17095. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 17095
- Representative coordinates
- 40.930945, -90.213792
- County type
- County
- County seat or government
- Galesburg
- Resident population, July 2025
- 47,767
- Land area
- 1,855.352 km²
- Water area
- 8.914 km²
- State
- Illinois
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Knox County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| America/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Listed zones overlap the mapped area. A point lookup can distinguish sides of a boundary. Your device’s zone may differ.
Census ZIP areas
61401 · 61402 · 61410 · 61414 · 61428 · 61430 · 61434 · 61436 · 61439 · 61448 · 61449 · 61458 · 61467 · 61472 · 61474 · 61485 · 61488 · 61489 · 61490 · 61529 · 61531 · 61544 · 61572
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Knox 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.
Cities, towns and communities
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Abingdon city, IL
- Altona village, IL
- East Galesburg village, IL
- Galesburg city, IL
- Gilson CDP, IL
- Henderson village, IL
- Knoxville city, IL
- London Mills village, IL
- Maquon village, IL
- Oak Run CDP, IL
- Oneida city, IL
- Rio village, IL
- St. Augustine village, IL
- Victoria village, IL
- Wataga village, IL
- Williamsfield village, IL
- Yates City village, IL
Areas sharing the mapped boundary
These areas touch this mapped boundary.
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 at your current point, check its ZIP area, or find its physical time zone.