ZIP Code
ZIP Code 99349
Mattawa, Grant County, Washington WA
Population
8,143
Density
11.8/sq mi
Timezone
America/Los_Angeles
Safety Score
50
50
Average
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Overview
ZIP code 99349 is located in Mattawa, Grant County, Washington. The area has a population of approximately 8,143 residents with a population density of 11.8 per square mile. It is in the America/Los_Angeles timezone.