Issaquah, WA ZIP codes

2 ZIP/ZCTAs intersecting this Census place in King County.

ACS 2023 population

39,472

Median household income

$153,786

Median home value

$934,100

U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Issaquah (GEOID 5333805). Methodology

Combined population of ZIP/ZCTAs intersecting this place: 59,265 (2 ZIPs).

Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology

Map of Issaquah, WA

Census place boundary and intersecting ZIP Code Tabulation Areas for Issaquah, WA — Census place boundary for Issaquah, WA. Intersecting ZCTAs may extend past the city limit. Not a USPS city limit. Boundaries: U.S. Census Bureau. Methodology · Data sources

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ZIP/ZCTA overlap with Issaquah

Population overlap

Share of each ZIP/ZCTA’s population located within Issaquah, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.

9802771.3%
USPS primary city
9802961.4%
USPS primary city

ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology

ZIP codes intersecting Issaquah

ZIP	City	County	Population	Income
98027	Issaquah	King County	28,335	$150,000
98029	Issaquah	King County	30,930	$164,058

USPS associates these ZIPs with Issaquah

These codes list Issaquah as a primary or acceptable city. They are not used for the ACS headline.

ZIP	City	County	Population	Income
98075	Sammamish	King County	25,231	$250,000+