Will County, Illinois
Will County is a county in Illinois. Its county FIPS code is 17197. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 17197
- Representative coordinates
- 41.448474, -87.978456
- County type
- County
- County seat or government
- Joliet
- Resident population, July 2025
- 712,253
- Land area
- 2,164.991 km²
- Water area
- 34.486 km²
- State
- Illinois
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Will 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
60401 · 60403 · 60404 · 60407 · 60408 · 60410 · 60416 · 60417 · 60421 · 60423 · 60431 · 60432 · 60433 · 60435 · 60436 · 60439 · 60440 · 60441 · 60442 · 60446 · 60447 · 60448 · 60449 · 60451 · 60466 · 60467 · 60468 · 60471 · 60475 · 60477 · 60481 · 60484 · 60487 · 60490 · 60491 · 60503 · 60517 · 60543 · 60544 · 60564 · 60565 · 60585 · 60586 · 60940 · 60950
These statistical areas overlap the boundary. They are not delivery assignments; confirm mailing details with USPS ZIP Code Lookup.
Official county information
Use the US government local-office directory ↗ to find the office responsible for your address. A county website has not been confidently matched here. 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.
- Andres CDP, IL
- Arbury Hills CDP, IL
- Aurora city, IL
- Beecher village, IL
- Bolingbrook village, IL
- Bonnie Brae CDP, IL
- Braceville village, IL
- Braidwood city, IL
- Channahon village, IL
- Coal City village, IL
- Crest Hill city, IL
- Crete village, IL
- Crystal Lawns CDP, IL
- Custer Park CDP, IL
- Diamond village, IL
- Eagle Lake CDP, IL
- Elwood village, IL
- Fairmont CDP, IL
- Frankfort village, IL
- Frankfort Square CDP, IL
- Godley village, IL
- Goodenow CDP, IL
- Homer Glen village, IL
- Ingalls Park CDP, IL
- Joliet city, IL
- Lakewood Shores CDP, IL
- Lemont village, IL
- Lockport city, IL
- Lockport Heights CDP, IL
- Lorenzo CDP, 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.