Cortland, IL ZIP code
The ZIP code for Cortland, Illinois is 60112. It is in DeKalb County.
- Population in these ZIPs
- 4,621
- Avg. median income
- $72,800population-weighted
- Typical home value
- $296,300population-weighted
- Metro area
- Chicago-Naperville-Elgin, IL-IN
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Cortland, IL ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 60112 | 4,621 | $72,831 | $296,300 |
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
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Frequently asked questions
What is the ZIP code for Cortland, IL?
The ZIP code for Cortland, IL is 60112.
What county is Cortland, Illinois in?
Cortland ZIP codes are in DeKalb County.