Seattle, WA 98118 ZIP Code Profile

Related Place Profiles:
Columbia, WA | Seattle, WA

ZIP Code 98118: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Seattle, WA 98118

Not Acceptable, USPS
Columbia, WA 98118

  • ZIP Code Type: STANDARD
  • County: King County
  • Centroid: Latitude 47.542, Longitude -122.268
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes
  • Businesses Addresses: 1,250
  • PO Box Addresses: 883
  • Residential Addresses: 17,205
    • Multi-Family Addresses: 4,234
    • Single Family Addresses: 12,971

The ZIP Code maps and database are updated 4 times per year.
Database updated: May 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.


98118 ZIP Code Map

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Seattle, WA 98118 Data & Demographics (As of July 1, 2017)


Total Population 46,982
Daytime Population: Workers 10,582
Daytime Population: Residents 25,024
Total Daytime Population (TDP) 35,606
Ratio TDP/Total Population1 0.76
Population in Households 46,169
Population in Familes 36,146
Population in Group Qrtrs 813
Population Density2 7,883
Diversity Index3 77


Median Household Income $59,322
Average Household Income $85,219
Per Capita Income $30,436


Total Housing Units 17,371 (100%)
Owner Occupied HU 9,333 (53.7%)
Renter Occupied HU 7,153 (41.2%)
Vacant Housing Units 885 ( 5.1%)
Median Home Value $394,847
Average Home Value $476,661


Total Households 16,486
Average Household Size 2.8
Family Households 10,515
Average Family Size 3
  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 1.32% 1.32%
Households 1.2% 1.24%
Families 1.2% 1.24%
Median Household Income   3.59%
Per Capita Income   2.61%

Seattle, WA 98118 - Peer Comparisons by Rank and Percentile

The table below compares 98118 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 # 23 96th
Population Density # 15 98th
Diversity Index # 42 93rd
Median Household Income # 228 61st
Per Capita Income # 244 58th

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

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