Zip Code 66603 — Topeka, KS

ZIP Code 66603 is associated with Topeka, KS, in Shawnee County. The listed population estimate is 1,830; estimated density is 790.1 people per square mile. Among records with population estimates, it ranks #19 of 24 in Shawnee County and #247 of 699 in KS.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.057420, -95.675390)

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

How 66603 Compares

MetricZIP 66603Shawnee County recordsKS records
Population estimate1,830178,325 (sum)2,947,026 (sum)
Population Density790.1 /sq mi----
County population rank#19 of 24----
State population rank#247 of 699----

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 KS

ZIP CodeCityDistancePopulation estimate
ZIP 66612Topeka1.2 mi1,754
ZIP 66608Topeka1.6 mi4,216
ZIP 66621Topeka2.2 mi442
ZIP 66607Topeka2.4 mi9,965
ZIP 66606Topeka2.6 mi9,842

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 →