ZIP Code
ZIP Code 99328
Dayton, Columbia County, Washington WA
Population
3,646
Density
2.1/sq mi
Timezone
America/Los_Angeles
Safety Score
50
50
Average
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Overview
ZIP code 99328 is located in Dayton, Columbia County, Washington. The area has a population of approximately 3,646 residents with a population density of 2.1 per square mile. It is in the America/Los_Angeles timezone.