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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

Zip Code 98388, Steilacoom, WA

ZIP Code 98388 Details

Zip Code:98388
State:WA [Washington]
Counties:PIERCE, WA
Multi County:No
City Alias(es):Steilacoom
City Alias(es) To Avoid Using:Ketron Is
Ketron Island
Mcneil Island
Area Code:253
City Type:B [Branch]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:58 ft
State FIPS:53
County FIPS:053
Intro Date:<2004-10

ZIP Code 98388 2020 Census Demographics

Current Population:6,887
2020 Population:7,096
Households per ZIP Code:2,780
Average House Value:$442,500
Avg. Income Per Household:$95,316
Persons Per Household:2.42
White Population:4,843
Black Population:399
Hispanic Population:683
Asian Population:497
American Indian Population:69
Hawaiian Population:62
Other Population:199
Male Population:3,484
Female Population:3,612
Median Age:41.10 years
Male Median Age:40.20 years
Female Median Age:41.90 years

ZIP Code 98388 Other Demographics

# Residential Mailboxes:2,846
# Business Mailboxes:38
Total Delivery Receptacles:11,342
Number of Businesses:55
1st Quarter Payroll:$1,420,000
Annual Payroll:$6,766,000
# of Employees:174
Water Area:12.844 sq mi
Land Area:8.836 sq mi
118th Congressional District:10
118th Congressional Land Area:826.67 sq mi
Single Family Delivery Units:1,661
Multi Family Delivery Units:485
# Residential Mailboxes:2,846
# Business Mailboxes:38
Total Delivery Receptacles:11,342

ZIP Code 98388 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 1,535 1,565 +30
Retired Workers: 1,150 1,190 +40
Disabled Workers: 120 115 -5
Widow(er)s and Parents: 105 95 -10
Spouses: 90 90 0
Children: 70 75 +5
65+: 1,295 1,315 +20
Monthly Benefits - All: $2,371,000 $2,509,000 +$138,000
Monthly Benefits - Retired Workers: $1,905,000 $2,051,000 +$146,000
Monthly Benefits - Widow(ers): $155,000 $152,000 ($3,000)

ZIP Code 98388 Statistical Areas

CBSA: 42660
CBSA Name: Seattle-Tacoma-Bellevue, WA
CBSA Type: Metro
CBSA Division: 45104
CBSA Division Name: Tacoma-Lakewood, WA
CBSA Population:0
CBSA Division Population:0
MSA: 7602
MSA Name: Seattle-Tacoma-Bremerton, WA CMSA
PMSA: 8200
PMSA Name: Tacoma, WA PMSA
City State Key:Z17576
Preferred Last Line Key:Z17576
98387: Previous ZIP Code
Next ZIP Code: 98390


  1. U.S. Postal Service [Last Updated: 6/1/2023],
  2. Internal Data Creation [Last Updated: 6/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 6/1/2023],
  6. U.S. Census 2020 [Decennial] [Last Updated: 5/25/2023],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],