Peoria County, Illinois
Peoria County is a county in Illinois. Its county FIPS code is 17143. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 17143
- Representative coordinates
- 40.785972, -89.766993
- County type
- County
- County seat or government
- Peoria
- Resident population, July 2025
- 178,553
- Land area
- 1,602.413 km²
- Water area
- 29.919 km²
- State
- Illinois
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Peoria 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
61451 · 61489 · 61517 · 61523 · 61525 · 61526 · 61528 · 61529 · 61531 · 61533 · 61536 · 61539 · 61547 · 61552 · 61559 · 61562 · 61565 · 61569 · 61602 · 61603 · 61604 · 61605 · 61606 · 61607 · 61611 · 61614 · 61615 · 61616 · 61625
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Peoria 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.
- Bartonville village, IL
- Bellevue village, IL
- Brimfield village, IL
- Chillicothe city, IL
- Dunlap village, IL
- Elmwood city, IL
- Farmington city, IL
- Glasford village, IL
- Hanna City village, IL
- Kingston Mines village, IL
- Lake Camelot CDP, IL
- Mapleton village, IL
- Mossville CDP, IL
- Norwood village, IL
- Pekin city, IL
- Peoria city, IL
- Peoria Heights village, IL
- Princeville village, IL
- Rome CDP, IL
- Smithville CDP, IL
- Trivoli CDP, IL
- West Peoria city, 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.