County ZIP codes · Illinois · FIPS 17081
Jefferson County, IL ZIP Codes
Jefferson County, Illinois has 18 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 17 residential and 1 for PO boxes or a single organization. 12 of the residential ones lie mainly in Jefferson County and 5 mainly in a neighboring county; 11 cross the county line. Median household income ranges from $52,017 in 62801 (Centralia) to $74,297 in 62898 (Woodlawn) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Jefferson 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 $53,036 and $62,400.
They carry 17 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 17 residential ZIP codes in Jefferson County
12 ZIP codes lie mainly in Jefferson County; 5 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 62864 | Mount Vernon | 22,779 | 159 | $61k | $125k | 100% |
| 62898 | Woodlawn | 1,968 | 37 | $74k | $159k | 100% |
| 62846 | Ina | 1,798 | 110 | $66k | $103k | 100% |
| 62814 | Bluford | 1,668 | 23 | $60k | $121k | 82% |
| 62830 | Dix | 1,416 | 49 | $62k | $138k | 96% |
| 62810 | Belle Rive | 1,188 | 19 | $58k | $118k | 86% |
| 62872 | Opdyke | 1,153 | 50 | $62k | $88k | 100% |
| 62816 | Bonnie | 1,133 | 30 | $53k | $87k | 100% |
| 62889 | Texico | 1,066 | 33 | $70k | $144k | 68% |
| 62893 | Walnut Hill | 926 | 46 | $59k | $123k | 55% |
| 62894 | Waltonville | 782 | 17 | $84k | $122k | 100% |
| 62883 | Scheller | 693 | 16 | $105k | $164k | 71% |
Partly in Jefferson County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 62808 | Ashley | 1,602 | 21 | $69k | $147k | 32% |
| 62801 | Centralia | 19,827 | 147 | $52k | $95k | 14% |
| 62851 | Keenes | 371 | 12 | $97k | $95k | 8% |
| 62836 | Ewing | 891 | 23 | $73k | $124k | 7% |
| 62877 | Richview | 437 | 14 | $84k | $126k | 6% |
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?
11 ZIP codes of Jefferson County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Jefferson | Elsewhere |
|---|---|---|
| 62801 | 14% | Marion County 37%; Clinton County 33%; Washington County 16% |
| 62814 | 82% | Wayne County 18% |
| 62808 | 32% | Washington County 68% |
| 62830 | 96% | Marion County 4% |
| 62810 | 86% | Wayne County 10%; Hamilton County 5% |
| 62889 | 68% | Marion County 32% |
| 62893 | 55% | Marion County 45% |
| 62836 | 7% | Franklin County 93% |
| 62883 | 71% | Perry County 16%; Franklin County 13% |
| 62877 | 6% | Washington County 94% |
| 62851 | 8% | Wayne County 90%; Marion County 2% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
| ZIP | Postal name |
|---|---|
| 62866 | Nason |
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Jefferson County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Jefferson County starts with 628.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 628 | St Louis, MO (SCF 630) | 18 | 90 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.