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Zip Code 60056 — Mount Prospect, IL

ZIP Code 60056 is associated with Mount Prospect, IL, in Cook County. The listed population estimate is 55,818; estimated density is 1,983.5 people per square mile. Among records with population estimates, it ranks #25 of 167 in Cook County and #28 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.066180, -87.934730)

Data MetricLocal Statistic
Postal / Zip Code60056
Primary CityMount Prospect
State / ProvinceIL
CountyCook
Total Population55,818
Population Density1,983.5 people/sq mi
TimezoneAmerica/Chicago

How 60056 Compares

MetricZIP 60056Cook County recordsIL records
Population estimate55,8185,192,497 (sum)12,694,745 (sum)
Population Density1,983.5 /sq mi----
County population rank#25 of 167----
State population rank#28 of 1,390----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IL

ZIP CodeCityDistancePopulation estimate
ZIP 60016Des Plaines2.5 mi60,898
ZIP 60070Prospect Heights2.6 mi15,496
ZIP 60005Arlington Heights2.7 mi28,843
ZIP 60004Arlington Heights3.9 mi51,835
ZIP 60090Wheeling4.5 mi38,298

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 →