Decatur ZIP codes, Illinois
Decatur, IL has 6 ZIP codes (62521, 62526, 62522, 62523, 62524 and 62525) and area codes 217 and 447. The largest is 62521.
- USPS city name
- 6 ZIP codes
- Overlapping the city
- 3 more
- Population
- 69,815
- County
- Macon County
- State
- Illinois
Mail addressed to Decatur uses the ZIP codes above. 3 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.
Decatur in numbers
About 69,815 people live in Decatur, in 30,920 households, the 17th-largest of Illinois's 1,443 census places. The median household income is $51,592 a year, 38% below the Illinois median of $83,390 (US: $80,734). The median owner-occupied home is valued at $99,600 (62% below the Illinois median), and median gross rent is $845 a month. The median age is 39.2; 21.6% of adults 25 and over hold a bachelor's degree or higher (37.8% across Illinois); the average commute takes 18 minutes.
| Population | 69,815 |
|---|---|
| Households | 30,920 |
| Median age | 39.2 |
| Median household income | $51,592 |
| Median home value | $99,600 |
| Median gross rent | $845 |
| Bachelor's degree or higher | 21.6% |
| Mean commute | 17.7 min |
| Population density | 1,598 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Decatur city. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Decatur
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
62521 | Decatur , IL | Standard | 32,665 | $66,337 | $125,100 |
62526 | Decatur , IL | Standard | 30,483 | $49,062 | $95,100 |
62522 | Decatur , IL | Standard | 15,185 | $50,669 | $113,600 |
62523 | Decatur , IL | Standard | 707 | $13,393 | — |
62524 | Decatur , IL | No street area | — | — | — |
62525 | Decatur , IL | No street area | — | — | — |
Other ZIP codes overlapping Decatur
These ZIP codes cover part of Decatur but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
62501 | Argenta , IL | Standard | 2,324 | $95,889 | $172,200 |
62535 | Forsyth , IL | Standard | 3,502 | $112,000 | $281,000 |
62554 | Oreana , IL | Standard | 1,832 | $95,625 | $152,600 |
Map of Decatur ZIP codes
The ZIP codes of Decatur, IL, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Decatur
The nearest larger towns are Springfield (113,330 people, 38 mi), Champaign (89,996 people, 39 mi) and Bloomington (78,907 people, 43 mi).
| Town | Population | Distance |
|---|---|---|
| Forsyth | 3,502 | 5.1 mi |
| Mount Zion | 5,660 | 5.6 mi |
| Clinton | 6,985 | 20.2 mi |
| Monticello | 6,304 | 22.7 mi |
| Sullivan | 4,348 | 25.0 mi |
| Taylorville | 10,646 | 28.4 mi |
More nearby: every ZIP code in Macon County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Decatur, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/decatur
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