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Zip Code 66603 — Topeka, KS

66603 is a ZIP Code associated with Topeka, KS, located within Shawnee. The postal region supports an estimated population of 1,830 residents across Data Pending housing units, with a population density of 790.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.057420, -95.675390)

Data MetricLocal Statistic
Postal / Zip Code66603
Primary CityTopeka
State / ProvinceKS
CountyShawnee
Total Population1,830
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density790.1 people/sq mi
TimezoneAmerica/Chicago

How 66603 Compares

MetricZIP 66603Shawnee CountyKS State Average
Population1,830178,3252,947,026
Median IncomeData PendingN/AN/A
Population Density790.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 66612Topeka1.2 mi1,754N/A
Zip 66608Topeka1.6 mi4,216N/A
Zip 66621Topeka2.2 mi442N/A
Zip 66607Topeka2.4 mi9,965N/A
Zip 66606Topeka2.6 mi9,842N/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 →