Franklin County, Illinois
Franklin County is a county in Illinois. Its county FIPS code is 17055. Use the boundary map and neighboring areas below to check the jurisdiction you need.
- Official code
- 17055
- Representative coordinates
- 37.991852, -88.926321
- County type
- County
- County seat or government
- Benton, Illinois
- Resident population, July 2025
- 36,916
- Land area
- 1,059.137 km²
- Water area
- 58.369 km²
- State
- Illinois
The representative point identifies this area. It is not a street address or a boundary survey.
Time zones in Franklin 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
62812 · 62819 · 62822 · 62825 · 62836 · 62856 · 62859 · 62860 · 62865 · 62874 · 62883 · 62884 · 62890 · 62891 · 62896 · 62897 · 62932 · 62983 · 62999
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.
- Benton city, IL
- Buckner village, IL
- Christopher city, IL
- Ewing village, IL
- Freeman Spur village, IL
- Hanaford village, IL
- Macedonia village, IL
- Mulkeytown CDP, IL
- North City village, IL
- Orient city, IL
- Royalton village, IL
- Sesser city, IL
- Thompsonville village, IL
- Valier village, IL
- West City village, IL
- West Frankfort city, IL
- Zeigler 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.