Zip Code 60056 — Mount Prospect, IL
60056 is a ZIP Code associated with Mount Prospect, IL, located within Cook. The postal region supports an estimated population of 55,818 residents across Data Pending housing units, with a population density of 1,983.5 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (42.066180, -87.934730)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 60056 |
| Primary City | Mount Prospect |
| State / Province | IL |
| County | Cook |
| Total Population | 55,818 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1,983.5 people/sq mi |
| Timezone | America/Chicago |
How 60056 Compares
| Metric | ZIP 60056 | Cook County | IL State Average |
|---|
| Population | 55,818 | 5,192,497 | 12,694,745 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 1,983.5 /sq mi | -- | -- |
Nearby ZIP Codes
| ZIP Code | City | Distance | Population | Median Income |
|---|
| Zip 60016 | Des Plaines | 2.5 mi | 60,898 | N/A |
| Zip 60070 | Prospect Heights | 2.6 mi | 15,496 | N/A |
| Zip 60005 | Arlington Heights | 2.7 mi | 28,843 | N/A |
| Zip 60004 | Arlington Heights | 3.9 mi | 51,835 | N/A |
| Zip 60090 | Wheeling | 4.5 mi | 38,298 | N/A |
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 →