Seattle, WA 98198 ZIP Code Profile

Related Place Profiles:
Des Moines, WA | Normandy Park, WA | Seatac, WA | Seattle, WA

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ZIP Code 98198: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Seattle, WA 98198

Acceptable Alternative
Des Moines, WA 98198
Normandy Park, WA 98198
Seatac, WA 98198

Not Acceptable, USPS
Redondo Beach, WA 98198

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 836
  • Single Family Addresses: 8,550
  • Multi-Family Addresses: 5,388
  • County: King County
  • Centroid: Latitude 47.405, Longitude -122.31
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood 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 certain data.


98198 ZIP Code Map

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Seattle, WA 98198 Data & Demographics (As of July 1, 2017)


Total Population 38,096
Daytime Population: Workers 9,025
Daytime Population: Residents 19,557
Total Daytime Population (TDP) 28,582
Ratio TDP/Total Population1 0.75
Population in Households 36,803
Population in Familes 28,366
Population in Group Qrtrs 1,293
Population Density2 4,946
Diversity Index3 77


Median Household Income $60,833
Average Household Income $80,591
Per Capita Income $31,252


Total Housing Units 15,421 (100%)
Owner Occupied HU 8,041 (52.1%)
Renter Occupied HU 6,268 (40.6%)
Vacant Housing Units 1,112 ( 7.2%)
Median Home Value $303,225
Average Home Value $364,286


Total Households 14,309
Average Household Size 2.57
Family Households 8,942
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.
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.39% 1.35%
Households 1.25% 1.25%
Families 1.3% 1.29%
Median Household Income   2.83%
Per Capita Income   2.39%

Seattle, WA 98198 - Peer Comparisons by Rank and Percentile

The table below compares 98198 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 # 45 92nd
Population Density # 48 92nd
Diversity Index # 41 93rd
Median Household Income # 211 64th
Per Capita Income # 222 62nd

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

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