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Where am ILOCATED

Franklin County, Illinois

Franklin County, Illinois, has 36,916 residents (July 2025 estimate). Its county seat is Benton, Illinois. It uses Central Time and covers 409 sq mi (1,059 km²) of land.

ChicagoAurora
Franklin County in Illinois
West FrankfortBentonChristopherSesserZeigler
Franklin County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
36,916
Land area
409 sq mi (1,059 km²)
County seat or government
Benton, Illinois
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$56,740 ± $3,913
Median home value
$89,000 ± $3,455
Median rent, with utilities
$803 ± $51
Homes lived in by their owners
74.1% ± 1.4 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Marion-Herrin, IL micro area, Mount Vernon, IL micro area, and Carbondale, IL micro area
Water area
22.5 sq mi (58.4 km²)
State
Illinois
County code (FIPS)
17055
Coordinates (central point)
37.991852, -88.926321
Open this point in the location finder

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 Franklin County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-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

  1. 6281211,611 people
  2. 6289610,627 people
  3. 628595,004 people
  4. 628842,758 people
  5. 628222,581 people
  6. 628902,377 people
  7. 628652,037 people
  8. 629831,728 people
  9. 629991,267 people
  10. 629321,152 people
  11. 62836891 people
  12. 62883693 people
All 19
  1. 62897542 people
  2. 62891514 people
  3. 62874440 people
  4. 62860384 people
  5. 62856332 people
  6. 62825254 people
  7. 62819247 people

19 ZIP Code areas overlap Franklin 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

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Franklin County, largest first

  1. Benton Township8,623 people
  2. Frankfort Township6,340 people
  3. Denning Township4,682 people
  4. Tyrone Township4,636 people
  5. Six Mile Township3,496 people
  6. Goode Township2,604 people
  7. Browning Township2,145 people
  8. Ewing Township2,020 people
  9. Cave Township1,549 people
  10. Eastern Township600 people
  11. Northern Township317 people
  12. Barren Township311 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county

School districts in Franklin County, largest first

  1. Herrin Community Unit School District 416,304 people
  2. Benton Consolidated High School District 10312,750 people
  3. Frankfort Community Unit School District 16810,560 people
  4. Benton Community Consolidated School District 479,683 people
  5. Hamilton County Community Unit School District 107,368 people
  6. Christopher Community Unit School District 994,332 people
  7. Sesser-Valier Community Unit School District 1964,166 people
  8. Zeigler-Royalton Community Unit School District 1883,917 people
  9. Ewing Northern Community Consolidated District 1152,370 people
  10. Thompsonville Community Unit School District 1741,792 people
  11. Akin Community Consolidated School District 91762 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.

  1. West Frankfort, Illinois (city)7,118 people
  2. Benton, Illinois (city)6,863 people
  3. Christopher, Illinois (city)2,570 people
  4. Sesser, Illinois (city)2,023 people
  5. Zeigler, Illinois (city)1,267 people
  6. Royalton, Illinois (village)1,214 people
  7. North City, Illinois (village)715 people
  8. West City, Illinois (village)662 people
  9. Valier, Illinois (village)523 people
  10. Thompsonville, Illinois (village)500 people
  11. Orient, Illinois (city)417 people
  12. Ewing, Illinois (village)341 people
All 17
  1. Hanaford, Illinois (village)332 people
  2. Buckner, Illinois (village)276 people
  3. Freeman Spur, Illinois (village)149 people
  4. Mulkeytown, Illinois (CDP)117 people
  5. Macedonia, Illinois (village)31 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Williamson County, Illinois18 mi south
  2. Jefferson County, Illinois21 mi north
  3. Hamilton County, Illinois22 mi east
  4. Perry County, Illinois25 mi west
  5. Saline County, Illinois27 mi southeast
  6. Jackson County, Illinois29 mi southwest

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.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.