Dover ZIP code, Illinois
The ZIP code for Dover, IL is 61323, and its area code is 815.
- USPS city name
- 1 ZIP code
- Overlapping the city
- 1 more
- Population
- 133
- Area code
- 815
- County
- Bureau County
- State
- Illinois
Mail addressed to Dover uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.
ZIP codes addressed as Dover
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61323 | Dover , IL | Standard | 125 | $47,500 | $120,000 |
Other ZIP codes overlapping Dover
These ZIP codes cover part of Dover but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
61356 | Princeton , IL | Standard | 10,799 | $68,243 | $152,900 |
Map of Dover ZIP codes
The ZIP codes of Dover, 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 Dover
The nearest larger towns are Malden (460 people, 1.5 mi), Princeton (7,975 people, 5.1 mi) and Seatonville (370 people, 7.8 mi).
| Town | Population | Distance |
|---|---|---|
| Princeton | 7,975 | 5.1 mi |
| Spring Valley | 5,476 | 13.4 mi |
| Peru | 9,775 | 14.3 mi |
| LaSalle | 9,498 | 16.9 mi |
| Mendota | 6,994 | 17.5 mi |
| Oglesby | 3,570 | 19.5 mi |
| Rock Falls | 8,587 | 28.0 mi |
| Dixon | 14,910 | 28.6 mi |
| Sterling | 14,717 | 29.6 mi |
More nearby: every ZIP code in Bureau County · Illinois ZIP codes
Cite this page
zipcodes.pro. “Dover, IL ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/il/dover
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