ZIP Code 98388 - Steilacoom Washington

ZIP Code 98388 is located in Steilacoom Washington. Portions of 98388 are also in Ketron Island and University Place. 98388 is entirely within Pierce County. Regionally, it is located in Metro Seattle-Tacoma.

Stats Demographics Geography Politics Schools Climate Related Pages

ZIP Code 98388 Quick Stats

ZIP Code NameSteilacoom
Primary CountyPierce County
ZIP Code TypeStandard
Population (2022)7,051
Area Code(s)253
Current Time

ZIP Code 98388 Map

98388 Demographics

98388 can be classified socioeconomically as Middle Class class compared to other ZIP Codes in Washington based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 98388 is White. The majority race/ethnicity attending public schools in 98388 is White. The current unemployment level in 98388 is 5.5%.

Population Growth Rate6.15%
Population Density722 People per Square Mile
Total Households2,418
Percentage High Income Households7.9%
Median Household Income (2021)$95,316
Average Adjusted Gross Income (2021)$380,830
Current Unemployment Rate (May 2024)5.5%
Majority Race/EthnictyWhite - 71.47%
Public School Majority Race/EthnictyWhite - 48.89%

98388 Race/Ethnicty Breakdown

Native American1161.6%
Hawaiian/Pac. Islander150.21%

98388 Public School Race/Ethnicty Breakdown

Native American60.39%
Hawaiian/Pac. Islander251.64%

98388 Educational Attainment Levels

Highest Education Level AttainedTotalPercentage
Less Than 1 Year of College3617.5%
Bachelor Degree85217.7%
High School Diploma90118.72%
No High School Diploma581.21%
GED or Alternate3677.63%
1 or More Years of College94719.68%
Associates Degree66013.71%
Masters Degree4088.48%
Professional Degree1934.01%
Doctorate Degree661.37%

98388 Geography

Adjacent ZIP Codes
Cities/Towns in 98388
RegionMetro Seattle-Tacoma
Metropolitan/Micropolitan Stat AreaSeattle-Tacoma-Bellevue, WA
Time ZonePacific Daylight Time
IANA TimezoneAmerica/Los_Angeles
Area10 Square Miles

98388 Politics

US Congressional Districts in 98388
Washington State Senate Districts in 98388
Washington State House of Representatives Districts in 98388

98388 Schools

School Districts in 98388
Elementary Schools in 98388
Middle Schools in 98388
High Schools in 98388

98388 Weather and Climate Data

Plant Hardiness ZoneZone 8b: 15F to 20F
Average First Frost DateOctober 21 - 31
Average Last Frost DateApril 11 - 20
Koppen-Geiger Climate ZoneCsb - Warm-Summer Mediterranean Climate
Ecoregion2g - Southern Puget Prairies

98388 Annual Climate Data

Avg Min Temp (°F)34353740454953534943383443
Avg Max Temp (°F)46505459667076767161514660
Avg Precip (In.)5.494.534.062.931.921.67.911.21.863.456.076.0940.2

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