ZIP Code 99140
About Keller
Keller is an unincorporated community and census-designated place (CDP) in southwestern Ferry County in the northeastern part of the U.S. state of Washington. As of the 2020 census, Keller had a population of 229.
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Area Profile
US Census (ACS 5-year · Gazetteer)
506
population
$50,944
median household income
1
people / sq mi
$138,900
median home value
$559
median gross rent
51.8
median age
278
housing units
236
households
443.1
land area (sq mi)