Coulee City, WA 99115 ZIP Code Profile

Related Place Profiles:
Coulee City, WA

ZIP Code 99115: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Coulee City, WA 99115

  • ZIP Code Type: STANDARD
  • County: Grant County
  • Centroid: Latitude 47.634, Longitude -119.253
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 59
  • PO Box Addresses: 373
  • Residential Addresses: 211
    • Multi-Family Addresses: 0
    • Single Family Addresses: 211

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

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Coulee City, WA 99115 Data & Demographics (As of July 1, 2018)


Total Population 1,116
Population in Households 1,113
Population in Familes 861
Population in Group Qrtrs 3
Population Density1 4
Diversity Index2 24


Median Household Income $49,071
Average Household Income $69,083
Per Capita Income $31,614


Total Housing Units 887 (100%)
Owner Occupied HU 381 (43.0%)
Renter Occupied HU 129 (14.5%)
Vacant Housing Units 377 (42.5%)
Median Home Value $174,479
Average Home Value $221,522


Total Households 510
Average Household Size 2.18
Family Households 312
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 0.03% 0.09%
Households -0.05% 0.08%
Families -0.15% 0.0%
Median Household Income   2.84%
Per Capita Income   3.4%

Coulee City, WA 99115 - Peer Comparisons by Rank and Percentile

The table below compares 99115 to the other 581 ZIP Codes in Washington by rank and percentile using July 1, 2018 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 # 416 29th
Population Density # 516 12th
Diversity Index # 435 24th
Median Household Income # 430 26th
Per Capita Income # 246 58th

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

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