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Zip Code 66066 — Oskaloosa, KS

ZIP Code 66066 is associated with Oskaloosa, KS, in Jefferson County. The listed population estimate is 2,432; estimated density is 12.2 people per square mile. Among records with population estimates, it ranks #4 of 9 in Jefferson County and #211 of 699 in KS.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.203590, -95.331420)

Data MetricLocal Statistic
Postal / Zip Code66066
Primary CityOskaloosa
State / ProvinceKS
CountyJefferson
Total Population2,432
Population Density12.2 people/sq mi
TimezoneAmerica/Chicago

How 66066 Compares

MetricZIP 66066Jefferson County recordsKS records
Population estimate2,43218,490 (sum)2,947,026 (sum)
Population Density12.2 /sq mi----
County population rank#4 of 9----
State population rank#211 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 66070Ozawkie6.4 mi1,944
ZIP 66054McLouth7.3 mi2,777
ZIP 66073Perry8.2 mi2,263
ZIP 66097Winchester10.0 mi995
ZIP 66512Meriden11.5 mi3,678

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 →