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Zip Code 60548 — Sandwich, IL

60548 is a ZIP Code associated with Sandwich, IL, located within DeKalb. 60548 ranks #3 out of 13 ZIP codes in DeKalb County by population (and #336 out of 1,396 in IL). The area supports an estimated population of 11,721 residents across Data Pending housing units, with a population density of 109.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.648110, -88.634710)

Data MetricLocal Statistic
Postal / Zip Code60548
Primary CitySandwich
State / ProvinceIL
CountyDeKalb
Total Population11,721
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density109.4 people/sq mi
TimezoneAmerica/Chicago

How 60548 Compares

MetricZIP 60548DeKalb CountyIL State Average
Population11,721105,547 (Total)12,694,745 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density109.4 /sq mi----
County Pop Rank#3 of 13----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 60552Somonauk3.7 mi4,285N/A
Zip 60536Millbrook5.5 mi62N/A
Zip 60545Plano5.5 mi14,392N/A
Zip 60537Millington6.2 mi726N/A
Zip 60531Leland8.1 mi1,885N/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 →