Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

Zip Code 98040, Mercer Island, WA

ZIP Code 98040 Details

Zip Code:98040
City:Mercer Island
State:WA [Washington]
Counties:KING, WA
Multi County:No
City Alias(es):Mercer Island
Area Code:206
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Pacific (GMT -08:00)
Observes Daylight Saving:Yes
Elevation:16 ft
State FIPS:53
County FIPS:033
Intro Date:<2004-10

ZIP Code 98040 2010 Census Demographics

Current Population:25,625
2010 Population:22,699
Households per ZIP Code:9,109
Average House Value:$1,386,300
Avg. Income Per Household:$150,506
Persons Per Household:2.48
White Population:18,494
Black Population:407
Hispanic Population:634
Asian Population:4,279
American Indian Population:169
Hawaiian Population:84
Other Population:230
Male Population:11,046
Female Population:11,653
Median Age:46.00 years
Male Median Age:45.00 years
Female Median Age:46.80 years

ZIP Code 98040 Other Demographics

# Residential Mailboxes:10,333
# Business Mailboxes:453
Total Delivery Receptacles:11,925
Number of Businesses:844
1st Quarter Payroll:$86,223,000
Annual Payroll:$379,361,000
# of Employees:7,052
Water Area:6.518 sq mi
Land Area:6.383 sq mi
113th Congressional District:09
113th Congressional Land Area:183.43 sq mi
Single Family Delivery Units:6,808
Multi Family Delivery Units:2,911
# Residential Mailboxes:10,333
# Business Mailboxes:453
Total Delivery Receptacles:11,925

ZIP Code 98040 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 4,610 4,620 +10
Retired Workers: 3,625 3,675 +50
Disabled Workers: 140 125 -15
Widow(er)s and Parents: 295 290 -5
Spouses: 420 405 -15
Children: 130 125 -5
65+: 4,275 4,295 +20
Monthly Benefits - All: $8,265,000 $8,621,000 +$356,000
Monthly Benefits - Retired Workers: $6,947,000 $7,343,000 +$396,000
Monthly Benefits - Widow(ers): $520,000 $519,000 ($1,000)

ZIP Code 98040 Statistical Areas

CBSA: 42660
CBSA Name: Seattle-Tacoma-Bellevue, WA
CBSA Type: Metro
CBSA Division: 42644
CBSA Division Name: Seattle-Bellevue-Kent, WA
CBSA Population:3,439,809
CBSA Division Population:2,644,584
MSA: 7602
MSA Name: Seattle-Tacoma-Bremerton, WA CMSA
PMSA: 7600
PMSA Name: Seattle-Bellevue-Everett, WA PMSA
City State Key:Z17129
Preferred Last Line Key:Z17129
98039: Previous ZIP Code
Next ZIP Code: 98041


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  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: 5/1/2022],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],