Zip Code 61088 — Winnebago, IL
61088 is a ZIP Code associated with Winnebago, IL, located within Winnebago. 61088 ranks #14 out of 20 ZIP codes in Winnebago County by population (and #445 out of 1,396 in IL). The area supports an estimated population of 6,167 residents across Data Pending housing units, with a population density of 42.1 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.269950, -89.255090)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 61088 |
| Primary City | Winnebago |
| State / Province | IL |
| County | Winnebago |
| Total Population | 6,167 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 42.1 people/sq mi |
| Timezone | America/Chicago |
How 61088 Compares
| Metric | ZIP 61088 | Winnebago County | IL State Average |
|---|
| Population | 6,167 | 285,063 (Total) | 12,694,745 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 42.1 /sq mi | -- | -- |
| County Pop Rank | #14 of 20 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →