Williamsfield, IL ZIP code
The ZIP code for Williamsfield, Illinois is 61489. It is in Knox County.
- Population in these ZIPs
- 820
- Avg. median income
- $98,100population-weighted
- Typical home value
- $150,000population-weighted
- Metro area
- Galesburg, IL
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Williamsfield, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 61489 | 820 | $98,125 | $150,000 |
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 Williamsfield
- Dahinda 4 mi
- Laura 5 mi
- Victoria 7 mi
- Yates City 9 mi
- Knoxville 11 mi
- Gilson 11 mi
- Elmwood 11 mi
- La Fayette 12 mi
- Brimfield 12 mi
- Maquon 13 mi
- Princeville 13 mi
- Toulon 13 mi
Frequently asked questions
What is the ZIP code for Williamsfield, IL?
The ZIP code for Williamsfield, IL is 61489.
What county is Williamsfield, Illinois in?
Williamsfield ZIP codes are in Knox County.