99349   Zip Code Mattawa Grant WA United States

City Mattawa
County Grant
State Washington
Latitude 46.73078
Longitude -119.6996
Population 8,143
Density 30.57 people per square mile
Time Zone America/Los Angeles
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $61,333
Median individual: $29,743

Race

Mode: 31.4% Multiple

Gender

 51.6% male 

Rent

  $1243 / month  

Median house value: $416,951.0

Age

Median: 29.4 years old

Education

With at least college degree: 12.1%
With STEM degree: 28.5%

Marital Status

 44.2% married 

Never married: 46.0%

Labor Force Participation

 65.6% working 

Unemployed: 7.6%

Average Family Size

 3.55 people 

Commute Time

 21.8 minutes 

Health Care

 35.1% uninsured 

Poverty

 21.8%

All data comes from the SimpleMaps US Zips Comprehensive Database, February 2026.

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