Zip Code 53566 — Monroe, WI
53566 is a ZIP Code associated with Monroe, WI, located within Green. 53566 ranks #1 out of 7 ZIP codes in Green County by population (and #140 out of 783 in WI). The area supports an estimated population of 14,901 residents across Data Pending housing units, with a population density of 37.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.609120, -89.648170)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 53566 |
| Primary City | Monroe |
| State / Province | WI |
| County | Green |
| Total Population | 14,901 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 37.6 people/sq mi |
| Timezone | America/Chicago |
How 53566 Compares
| Metric | ZIP 53566 | Green County | WI State Average |
|---|
| Population | 14,901 | 29,816 (Total) | 5,914,913 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 37.6 /sq mi | -- | -- |
| County Pop Rank | #1 of 7 | -- | -- |
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 →