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: December 1, 2022

ZIP Codes for City of Issaquah, WA

Issaquah, WA Covers 3 ZIP Codes

ZIP CodeTypeCountyPopulation
ZIP Code 98027StandardKing26,141
ZIP Code 98029StandardKing24,348
ZIP Code 98075StandardKing20,715

Timezone(s):Pacific (GMT -08:00)
Counties:KING, WA
Population:30,434 (More Details)
Male Population:14,509
Female Population:15,925
Median Age:37
ZIP Codes:3
Area Codes:1
Total Area:2,307 square miles (county)
Land Area:2,115 square miles (county)
Water Area:191 square miles (county)

Issaquah, WA Demographic Information *

Total population30,434
Male population14,509
Female population15,925
Median age (years)36.8
White Population22,736
Black Population422
Indian Population115
Asian Population5,322
Hawaiian Population36
Hispanic Population1,764
Median age (Male)35.8
Median age (Female)37.9
Total households12,841
Family households (families)8,018
Average household size2.34
Average family size2.95
Total housing units13,914
* Demographic data is based on 2010 Census. Products


  1. U.S. Postal Service [Last Updated: 12/1/2022],
  2. Internal Data Creation [Last Updated: 12/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],