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Where am ILOCATED

Madison County, Illinois

Madison County, Illinois, has 263,110 residents (July 2025 estimate). Its county seat is Edwardsville. It uses Central Time and covers 716 sq mi (1,853 km²) of land.

ChicagoAurora
Madison County in Illinois
Granite CityEdwardsvilleAltonCollinsvilleGodfrey
Madison County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
263,110
Land area
716 sq mi (1,853 km²)
County seat or government
Edwardsville
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$75,793 ± $1,799
Median home value
$173,000 ± $2,415
Median rent, with utilities
$1,024 ± $23
Homes lived in by their owners
74.2% ± 1.1 points
County type
County
Metro or micro area
St. Louis, MO-IL metro areaCentral county
Water area
24.4 sq mi (63.2 km²)
State
Illinois
County code (FIPS)
17119
Coordinates (central point)
38.827120, -89.900227
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 Madison 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. 6204040,404 people
  2. 6202535,520 people
  3. 6223431,648 people
  4. 6200229,543 people
  5. 6224916,205 people
  6. 6203515,892 people
  7. 6229415,325 people
  8. 6203414,870 people
  9. 6201011,028 people
  10. 6209510,726 people
  11. 620249,493 people
  12. 620628,277 people
All 36
  1. 622546,710 people
  2. 620126,672 people
  3. 620886,400 people
  4. 622014,921 people
  5. 622934,433 people
  6. 620603,558 people
  7. 620183,184 people
  8. 622163,156 people
  9. 622813,059 people
  10. 622753,012 people
  11. 620972,973 people
  12. 620672,203 people
  13. 620872,181 people
  14. 620011,869 people
  15. 620841,631 people
  16. 620611,487 people
  17. 620481,347 people
  18. 620861,318 people
  19. 620741,205 people
  20. 620461,102 people
  21. 620901,039 people
  22. 62058884 people
  23. 62021871 people
  24. 62026851 people

36 ZIP Code areas overlap Madison 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 Madison County, largest first

  1. Edwardsville Township40,522 people
  2. Collinsville Township35,410 people
  3. Wood River Township29,687 people
  4. Alton Township25,279 people
  5. Granite City Township24,767 people
  6. Jarvis Township15,951 people
  7. Nameoki Township11,968 people
  8. Fort Russell Township9,167 people
  9. Helvetia Township8,328 people
  10. Chouteau Township7,464 people
  11. Saline Township6,852 people
  12. Venice Township4,582 people
All 23
  1. Pin Oak Township4,528 people
  2. Foster Township3,867 people
  3. Moro Township3,495 people
  4. St. Jacob Township2,877 people
  5. Hamel Township2,756 people
  6. Omphghent Township2,319 people
  7. Marine Township2,142 people
  8. Alhambra Township1,700 people
  9. Olive Township1,586 people
  10. New Douglas Township663 people
  11. Leef Township616 people

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

School districts in Madison County, largest first

  1. Edwardsville Community Unit School District 755,435 people
  2. Collinsville Community Unit School District 1047,304 people
  3. Alton Community Unit School District 1145,851 people
  4. Granite City Community Unit School District 940,644 people
  5. Triad Community Unit School District 222,793 people
  6. Highland Community Unit School District 518,542 people
  7. Central Community High School District 7117,558 people
  8. Bethalto Consolidated Unit School District 814,956 people
  9. East Alton-Wood River Community High School District 1413,264 people
  10. Roxana Community Unit School District 111,541 people
  11. Staunton Community Unit School District 68,229 people
  12. East Alton School District 137,269 people
All 18
  1. Wood River-Hartford Elementary School District 155,995 people
  2. Bunker Hill Community Unit School District 83,647 people
  3. Madison Community Unit School District 123,451 people
  4. Aviston School District 213,171 people
  5. St. Rose School District 14-151,312 people
  6. Venice Community Unit School District 3702 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. Granite City, Illinois (city)26,549 people
  2. Edwardsville, Illinois (city)26,474 people
  3. Alton, Illinois (city)25,279 people
  4. Collinsville, Illinois (city)24,031 people
  5. Godfrey, Illinois (village)17,712 people
  6. Glen Carbon, Illinois (village)13,977 people
  7. Troy, Illinois (city)11,647 people
  8. Wood River, Illinois (city)10,279 people
  9. Highland, Illinois (city)10,262 people
  10. Bethalto, Illinois (village)9,239 people
  11. Maryville, Illinois (village)8,316 people
  12. Pontoon Beach, Illinois (village)6,025 people
All 34
  1. East Alton, Illinois (village)5,689 people
  2. Rosewood Heights, Illinois (CDP)4,229 people
  3. Madison, Illinois (city)2,900 people
  4. Holiday Shores, Illinois (CDP)2,782 people
  5. Fairmont City, Illinois (village)2,492 people
  6. South Roxana, Illinois (village)2,181 people
  7. St. Jacob, Illinois (village)1,759 people
  8. Venice, Illinois (city)1,636 people
  9. Roxana, Illinois (village)1,556 people
  10. Hartford, Illinois (village)1,334 people
  11. Hamel, Illinois (village)1,134 people
  12. Worden, Illinois (village)1,094 people
  13. Mitchell, Illinois (CDP)1,092 people
  14. Marine, Illinois (village)1,049 people
  15. Livingston, Illinois (village)884 people
  16. Alhambra, Illinois (village)658 people
  17. Moro, Illinois (CDP)524 people
  18. Grantfork, Illinois (village)459 people

See all 34 cities, towns and communities in Madison County, largest first

Bordering areas, nearest first

Distances are straight lines between map points.

  1. St. Louis city, Missouri23 mi southwest
  2. St. Clair County, Illinois25 mi south
  3. Bond County, Illinois25 mi east
  4. Clinton County, Illinois30 mi southeast
  5. Jersey County, Illinois30 mi northwest
  6. Macoupin County, Illinois30 mi north
  7. St. Louis County, Missouri32 mi southwest
  8. Montgomery County, Illinois36 mi northeast
  9. St. Charles County, Missouri42 mi west

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.