County ZIP codes · Illinois · FIPS 17197
Will County, IL ZIP Codes
Will County, Illinois has 45 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 44 residential and 1 for PO boxes or a single organization. 30 of the residential ones lie mainly in Will County and 14 mainly in a neighboring county; 27 cross the county line. Median household income ranges from $61,654 in 60466 (Park Forest) to $181,382 in 60564 (Naperville) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Will County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $79,042 and $122,870.
They carry 35 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 44 residential ZIP codes in Will County
30 ZIP codes lie mainly in Will County; 14 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 60440 | Bolingbrook | 51,940 | 3,444 | $94k | $277k | 98% |
| 60435 | Joliet | 48,167 | 4,448 | $76k | $236k | 100% |
| 60586 | Plainfield | 47,834 | 2,740 | $132k | $328k | 73% |
| 60564 | Naperville | 47,016 | 2,935 | $181k | $572k | 75% |
| 60446 | Romeoville | 41,672 | 2,136 | $106k | $256k | 100% |
| 60451 | New Lenox | 37,361 | 1,485 | $137k | $393k | 100% |
| 60441 | Lockport | 36,844 | 1,309 | $103k | $297k | 100% |
| 60423 | Frankfort | 32,836 | 867 | $137k | $398k | 95% |
| 60544 | Plainfield | 27,306 | 1,128 | $108k | $336k | 74% |
| 60431 | Joliet | 27,138 | 2,113 | $123k | $294k | 74% |
| 60585 | Plainfield | 25,960 | 1,744 | $156k | $453k | 88% |
| 60448 | Mokena | 24,405 | 1,333 | $121k | $386k | 100% |
| 60491 | Homer Glen | 22,757 | 889 | $139k | $425k | 100% |
| 60490 | Bolingbrook | 22,156 | 2,291 | $151k | $395k | 100% |
| 60432 | Joliet | 20,465 | 2,403 | $65k | $194k | 100% |
| 60404 | Shorewood | 20,385 | 1,296 | $122k | $336k | 100% |
| 60436 | Joliet | 19,423 | 1,079 | $63k | $181k | 100% |
| 60403 | Crest Hill | 18,371 | 3,757 | $73k | $233k | 100% |
| 60503 | Aurora | 16,789 | 3,927 | $137k | $325k | 72% |
| 60433 | Joliet | 16,382 | 1,208 | $67k | $172k | 100% |
| 60417 | Crete | 14,901 | 402 | $92k | $243k | 100% |
| 60410 | Channahon | 14,239 | 591 | $119k | $321k | 83% |
| 60442 | Manhattan | 13,753 | 205 | $128k | $356k | 100% |
| 60481 | Wilmington | 11,195 | 91 | $79k | $233k | 97% |
| 60449 | Monee | 9,477 | 192 | $105k | $300k | 99% |
| 60401 | Beecher | 7,647 | 135 | $98k | $261k | 98% |
| 60484 | University Park | 6,762 | 898 | $73k | $155k | 100% |
| 60468 | Peotone | 5,809 | 83 | $105k | $294k | 95% |
| 60408 | Braidwood | 5,327 | 834 | $95k | $216k | 100% |
| 60421 | Elwood | 3,649 | 61 | $103k | $272k | 100% |
Partly in Will County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 60487 | Tinley Park | 26,043 | 3,484 | $132k | $351k | 41% |
| 60565 | Naperville | 40,483 | 3,143 | $164k | $520k | 37% |
| 60475 | Steger | 10,035 | 2,083 | $68k | $159k | 31% |
| 60466 | Park Forest | 21,461 | 3,398 | $62k | $115k | 27% |
| 60407 | Braceville | 1,812 | 134 | $90k | $191k | 21% |
| 60517 | Woodridge | 33,156 | 3,556 | $99k | $362k | 9% |
| 60439 | Lemont | 24,192 | 814 | $122k | $481k | 9% |
| 60950 | Manteno | 11,964 | 156 | $89k | $259k | 6% |
| 60467 | Orland Park | 24,398 | 1,652 | $115k | $412k | 6% |
| 60447 | Minooka | 16,102 | 238 | $108k | $323k | 6% |
| 60471 | Richton Park | 12,848 | 3,237 | $65k | $222k | 4% |
| 60477 | Tinley Park | 35,976 | 2,530 | $95k | $275k | 4% |
| 60416 | Coal City | 9,550 | 419 | $75k | $222k | 3% |
| 60940 | Grant Park | 3,322 | 43 | $97k | $272k | 2% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
27 ZIP codes of Will County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Will | Elsewhere |
|---|---|---|
| 60440 | 98% | DuPage County 2% |
| 60586 | 73% | Kendall County 27% |
| 60564 | 75% | DuPage County 25% |
| 60565 | 37% | DuPage County 63% |
| 60477 | 4% | Cook County 96% |
| 60517 | 9% | DuPage County 91% |
| 60423 | 95% | Cook County 5% |
| 60544 | 74% | Kendall County 26% |
| 60431 | 74% | Kendall County 26% |
| 60487 | 41% | Cook County 59% |
| 60585 | 88% | Kendall County 12% |
| 60467 | 6% | Cook County 94% |
| 60439 | 9% | Cook County 67%; DuPage County 24% |
| 60466 | 27% | Cook County 73% |
| 60503 | 72% | Kendall County 28% |
| 60447 | 6% | Kendall County 73%; Grundy County 21% |
| 60410 | 83% | Grundy County 17% |
| 60471 | 4% | Cook County 96% |
| 60950 | 6% | Kankakee County 94% |
| 60481 | 97% | Kankakee County 2% |
| 60475 | 31% | Cook County 69% |
| 60416 | 3% | Grundy County 97% |
| 60449 | 99% | Cook County 1% |
| 60401 | 98% | Kankakee County 2% |
| 60468 | 95% | Kankakee County 5% |
| 60940 | 2% | Kankakee County 98% |
| 60407 | 21% | Grundy County 79% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 60434 | Joliet |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Will County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Will County's ZIP codes use 3 prefixes: 604, 605 and 609.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 604 | South Suburban, IL (SCF 604) | 36 | 83 |
| 605 | Fox Valley, IL (SCF 605) | 7 | 65 |
| 609 | Champaign, IL (SCF 618) | 2 | 57 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.