Franklin Grove, IL ZIP code
The ZIP code for Franklin Grove, Illinois is 61031. It is in Lee County.
- Population in these ZIPs
- 1,492
- Avg. median income
- $75,400population-weighted
- Typical home value
- $197,600population-weighted
- Metro area
- Dixon, IL
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Franklin Grove, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 61031 | 1,492 | $75,446 | $197,600 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Franklin Grove
Frequently asked questions
What is the ZIP code for Franklin Grove, IL?
The ZIP code for Franklin Grove, IL is 61031.
What county is Franklin Grove, Illinois in?
Franklin Grove ZIP codes are in Lee County.