Home > KS > Atchison County > Effingham > Zip 66023

Zip Code 66023 — Effingham, KS

ZIP Code 66023 is associated with Effingham, KS, in Atchison County. The listed population estimate is 1,189; estimated density is 6.4 people per square mile. Among records with population estimates, it ranks #2 of 5 in Atchison County and #314 of 699 in KS.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.513750, -95.400050)

Data MetricLocal Statistic
Postal / Zip Code66023
Primary CityEffingham
State / ProvinceKS
CountyAtchison
Total Population1,189
Population Density6.4 people/sq mi
TimezoneAmerica/Chicago

How 66023 Compares

MetricZIP 66023Atchison County recordsKS records
Population estimate1,18916,016 (sum)2,947,026 (sum)
Population Density6.4 /sq mi----
County population rank#2 of 5----
State population rank#314 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 66058Muscotah6.6 mi378
ZIP 66060Nortonville7.5 mi1,325
ZIP 66041Lancaster7.6 mi614
ZIP 66016Cummings9.5 mi559
ZIP 66424Everest11.3 mi486

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 →