Mattawa, WA 99349 ZIP Code Profile

Related Place Profiles:
Desert Aire, WA | Mattawa, WA

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ZIP Code 99349: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Mattawa, WA 99349

Acceptable Alternative
Desert Aire, WA 99349

  • ZIP Code Type: STANDARD
  • County: Grant County
  • Centroid: Latitude 46.737, Longitude -119.9
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 99
  • PO Box Addresses: 1,031
  • Residential Addresses: 1,062
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1,062

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


99349 ZIP Code Map

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Mattawa, WA 99349 Data & Demographics (As of July 1, 2017)


Total Population 9,083
Daytime Population: Workers 3,197
Daytime Population: Residents 4,944
Total Daytime Population (TDP) 8,141
Ratio TDP/Total Population1 0.90
Population in Households 9,083
Population in Familes 7,891
Population in Group Qrtrs 0
Population Density2 30
Diversity Index3 79


Median Household Income $41,960
Average Household Income $57,121
Per Capita Income $13,056


Total Housing Units 2,713 (100%)
Owner Occupied HU 1,025 (37.8%)
Renter Occupied HU 1,051 (38.7%)
Vacant Housing Units 637 (23.5%)
Median Home Value $138,370
Average Home Value $158,829


Total Households 2,076
Average Household Size 4.38
Family Households 1,779
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.07% 0.77%
Households 1.24% 0.96%
Families 1.17% 0.92%
Median Household Income   4.07%
Per Capita Income   4.33%

Mattawa, WA 99349 - Peer Comparisons by Rank and Percentile

The table below compares 99349 to the other 585 ZIP Codes in Washington by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 243 59th
Population Density # 393 33rd
Diversity Index # 26 96th
Median Household Income # 494 16th
Per Capita Income # 567 3rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

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