ZIP Codes in Leonore, IL
Leonore uses 1 ZIP code, all in LaSalle County. Pick one below for details, or look up the full nine-digit ZIP+4 for a specific street address.
All 1 Leonore ZIP codes
| ZIP | Type | County | Population |
|---|---|---|---|
| 61332 | standard | LaSalle | 104 |
Finding a ZIP+4 in Leonore
Knowing which of these 1 ZIP codes covers an address only gets you partway. The four-digit extension identifies the specific delivery point — typically one side of one block. Two houses facing each other on the same Leonore street almost always have different ZIP+4 codes even though they share all five leading digits.
Appending ZIP+4 to a mailing list?
Upload a CSV of Leonore addresses and download it complete.