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Zip Code 66621 — Topeka, KS

66621 is a ZIP Code associated with Topeka, KS, located within Shawnee. 66621 ranks #23 out of 24 ZIP codes in Shawnee County by population (and #485 out of 704 in KS). The area supports an estimated population of 442 residents across Data Pending housing units, with a population density of 845.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.033130, -95.702370)

Data MetricLocal Statistic
Postal / Zip Code66621
Primary CityTopeka
State / ProvinceKS
CountyShawnee
Total Population442
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density845.6 people/sq mi
TimezoneAmerica/Chicago

How 66621 Compares

MetricZIP 66621Shawnee CountyKS State Average
Population442178,325 (Total)2,947,026 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density845.6 /sq mi----
County Pop Rank#23 of 24----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 66622Topeka1.2 mi56N/A
Zip 66612Topeka1.3 mi1,754N/A
Zip 66611Topeka1.3 mi9,828N/A
Zip 66604Topeka1.3 mi23,006N/A
Zip 66603Topeka2.2 mi1,830N/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 →