| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 60113 | Creston | Ogle County | PO Box |
| 60129 | Esmond | DeKalb County | Standard |
| 60146 | Kirkland | DeKalb County | Standard |
| 61006 | Ashton | Lee County | Standard |
| 61007 | Baileyville | Ogle County | Standard |
| 61010 | Byron | Ogle County | Standard |
| 61015 | Chana | Ogle County | Standard |
| 61020 | Davis Junction | Ogle County | Standard |
| 61021 | Dixon | Lee County | Standard |
| 61030 | Forreston | Ogle County | Standard |
| 61031 | Franklin Grove | Lee County | Standard |
| 61039 | German Valley | Stephenson County | Standard |
| 61043 | Holcomb | Ogle County | PO Box |
| 61047 | Leaf River | Ogle County | Standard |
| 61049 | Lindenwood | Ogle County | Standard |
| 61051 | Milledgeville | Carroll County | Standard |
| 61052 | Monroe Center | Ogle County | Standard |
| 61054 | Mount Morris | Ogle County | Standard |
| 61061 | Oregon | Ogle County | Standard |
| 61064 | Polo | Ogle County | Standard |
| 61068 | Rochelle | Ogle County | Standard |
| 61078 | Shannon | Carroll County | Standard |
| 61084 | Stillman Valley | Ogle County | Standard |
| 61091 | Woosung | Ogle County | PO Box |
| 61102 | Rockford | Winnebago County | Standard |