Home > KS > Washington County > Haddam > Zip 66944

Zip Code 66944 — Haddam, KS

ZIP Code 66944 is associated with Haddam, KS, in Washington County. The listed population estimate is 304; estimated density is 1.3 people per square mile. Among records with population estimates, it ranks #7 of 11 in Washington County and #533 of 699 in KS.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (39.840070, -97.293540)

Data MetricLocal Statistic
Postal / Zip Code66944
Primary CityHaddam
State / ProvinceKS
CountyWashington
Total Population304
Population Density1.3 people/sq mi
TimezoneAmerica/Chicago

How 66944 Compares

MetricZIP 66944Washington County recordsKS records
Population estimate3045,761 (sum)2,947,026 (sum)
Population Density1.3 /sq mi----
County population rank#7 of 11----
State population rank#533 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 66958Morrowville6.9 mi198
ZIP 66940Cuba8.9 mi283
ZIP 66960Narka9.2 mi125
ZIP 66955Mahaska9.7 mi47
ZIP 66968Washington12.1 mi1,454

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 →