Will County, Illinois
Will County, Illinois, has 712,253 residents (July 2025 estimate). Its county seat is Joliet. It uses Central Time and covers 836 sq mi (2,165 km²) of land.
- Resident population, July 2025
- 712,253
- Land area
- 836 sq mi (2,165 km²)
- County seat or government
- Joliet
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $109,984 ± $1,819
- Median home value
- $319,600 ± $3,152
- Median rent, with utilities
- $1,462 ± $33
- Homes lived in by their owners
- 82.8% ± 0.6 points
- County type
- County
- Metro or micro area
- Chicago-Naperville-Elgin, IL-IN metro areaCentral county
- Water area
- 13.3 sq mi (34.5 km²)
- State
- Illinois
- County code (FIPS)
- 17197
- Coordinates (central point)
- 41.448474, -87.978456
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 Will County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-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
- 6044051,940 people
- 6043548,167 people
- 6058647,834 people
- 6056447,016 people
- 6054343,047 people
- 6044641,672 people
- 6056540,483 people
- 6045137,361 people
- 6044136,844 people
- 6047735,976 people
- 6051733,156 people
- 6042332,836 people
All 45
- 6054427,306 people
- 6043127,138 people
- 6048726,043 people
- 6058525,960 people
- 6044824,405 people
- 6046724,398 people
- 6043924,192 people
- 6049122,757 people
- 6049022,156 people
- 6046621,461 people
- 6043220,465 people
- 6040420,385 people
- 6043619,423 people
- 6040318,371 people
- 6050316,789 people
- 6043316,382 people
- 6044716,102 people
- 6041714,901 people
- 6041014,239 people
- 6044213,753 people
- 6047112,848 people
- 6095011,964 people
- 6048111,195 people
- 6047510,035 people
- 604169,550 people
- 604499,477 people
- 604017,647 people
- 604846,762 people
- 604685,809 people
- 604085,327 people
- 604213,649 people
- 609403,322 people
- 604071,812 people
45 ZIP Code areas overlap Will 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 Will County, largest first
- Wheatland Township90,134 people
- Du Page Township87,582 people
- Joliet Township85,288 people
- Plainfield Township83,145 people
- Frankfort Township60,045 people
- Lockport Township59,827 people
- Troy Township49,728 people
- New Lenox Township44,199 people
- Homer Township40,989 people
- Crete Township23,542 people
- Monee Township15,425 people
- Manhattan Township12,424 people
All 24
- Channahon Township10,769 people
- Reed Township6,903 people
- Washington Township6,459 people
- Wilmington Township5,915 people
- Peotone Township4,395 people
- Jackson Township3,875 people
- Green Garden Township3,862 people
- Wesley Township1,819 people
- Will Township1,691 people
- Custer Township1,503 people
- Wilton Township1,055 people
- Florence Township888 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Illinois, by county
School districts in Will County, largest first
- Indian Prairie Community Unit School District 204136,452 people
- Plainfield School District 202128,402 people
- Joliet Township High School District 204128,263 people
- Lincoln Way Community High School District 210114,706 people
- Naperville Community Unit District 20396,944 people
- Valley View Community Unit School District 365U91,709 people
- Oswego Community Unit School District 30884,549 people
- Joliet Public School District 8680,617 people
- Lockport Township High School District 20578,651 people
- Bloom Township High School District 20658,480 people
- Minooka Community High School District 11144,775 people
- New Lenox School District 12243,328 people
All 38
- Troy Community Consolidated School District 30C37,953 people
- Crete-Monee Community Unit School District 201-U32,929 people
- Homer Community Consolidated School District 33C32,020 people
- Minooka Community Consolidated School District 20131,134 people
- Summit Hill School District 16124,411 people
- Frankfort Community Consolidated School District 157C19,938 people
- Mokena School District 15916,253 people
- Steger School District 19413,899 people
- Will County School District 9213,720 people
- Manhattan School District 11412,523 people
- Manteno Community Unit School District 512,223 people
- Richland School District 88A11,996 people
- Peotone Community Unit School District 207U10,998 people
- Coal City Community Unit School District 110,930 people
- Channahon School District 1710,595 people
- Reed Custer Community Unit School District 255U9,609 people
- Wilmington Community Unit School District 209U8,687 people
- Chaney-Monge School District 887,072 people
- Beecher Community Unit School District 200U6,644 people
- Lockport School District 916,535 people
- Fairmont School District 893,903 people
- Elwood Community Consolidated School District 2033,526 people
- Taft School District 903,282 people
- Rockdale School District 842,954 people
- Laraway Community Consolidated School District 70C2,615 people
- Union School District 812,020 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.
- Aurora, Illinois (city)179,898 people
- Naperville, Illinois (city)150,692 people
- Joliet, Illinois (city)150,445 people
- Bolingbrook, Illinois (village)74,096 people
- Orland Park, Illinois (village)57,916 people
- Tinley Park, Illinois (village)54,842 people
- Plainfield, Illinois (village)46,708 people
- Romeoville, Illinois (village)41,152 people
- Oswego, Illinois (village)36,375 people
- Woodridge, Illinois (village)33,941 people
- New Lenox, Illinois (village)28,006 people
- Lockport, Illinois (city)26,409 people
All 59
- Homer Glen, Illinois (village)24,529 people
- Park Forest, Illinois (village)21,156 people
- Frankfort, Illinois (village)20,651 people
- Crest Hill, Illinois (city)20,628 people
- Mokena, Illinois (village)20,021 people
- Shorewood, Illinois (village)18,343 people
- Lemont, Illinois (village)17,820 people
- Channahon, Illinois (village)13,927 people
- Minooka, Illinois (village)12,891 people
- Manhattan, Illinois (village)11,026 people
- Frankfort Square, Illinois (CDP)9,560 people
- Steger, Illinois (village)9,418 people
- Crete, Illinois (village)8,386 people
- University Park, Illinois (village)7,306 people
- Braidwood, Illinois (city)6,062 people
- Wilmington, Illinois (city)5,494 people
- Coal City, Illinois (village)5,317 people
- Monee, Illinois (village)5,108 people
See all 59 cities, towns and communities in Will County, largest first
Bordering areas, nearest first
Distances are straight lines between map points.
- Kankakee County, Illinois22 mi south
- Grundy County, Illinois24 mi southwest
- Kendall County, Illinois25 mi northwest
- DuPage County, Illinois28 mi north
- Lake County, Indiana31 mi east
- Cook County, Illinois35 mi northeast
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.
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.