ZIP Code 66944
About Haddam
Haddam is a city in Washington County, Kansas, United States. It is named after Haddam, Connecticut. As of the 2020 census, the population of the city was 110.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
330
population
$77,375
median household income
4
people / sq mi
$223,700
median home value
61.2
median age
126
housing units
113
households
93.2
land area (sq mi)