Lyndon, IL ZIP code
The ZIP code for Lyndon, Illinois is 61261. It is in Whiteside County.
- Population in these ZIPs
- 656
- Avg. median income
- $64,400population-weighted
- Typical home value
- $123,300population-weighted
- Metro area
- Sterling, IL
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Lyndon, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 61261 | 656 | $64,375 | $123,300 |
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 Lyndon
- Morrison 7 mi
- Fenton 8 mi
- Prophetstown 9 mi
- Galt 9 mi
- Rock Falls 11 mi
- Sterling 12 mi
- Erie 12 mi
- Tampico 12 mi
- Fulton 13 mi
- Deer Grove 14 mi
- Hooppole 15 mi
- Albany 16 mi
Frequently asked questions
What is the ZIP code for Lyndon, IL?
The ZIP code for Lyndon, IL is 61261.
What county is Lyndon, Illinois in?
Lyndon ZIP codes are in Whiteside County.