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Issaquah, Washington ZIP code demographics

2 ZIP Code Tabulation Areas in Issaquah, Washington. The population-weighted median household income is about $162,143, the median home value about $1,028,971, and 64.9% of occupied homes are owner-occupied.

2
ZIP codes
59.5K
Population
54
Data points

Issaquah at a glance

$162,143
Median household income
$1,028,971
Median home value
38.9
Median age
64.9%
Owner-occupied
25,044
Housing units

Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.

Top 2 Issaquah ZIP codes by median household income
#ZIPCityPopulationHomeowner %Median HH $
198029Issaquah30,58662.3%$170,759
298027East Renton Highlands28,95567.6%$153,301
Top 2 Issaquah ZIP codes by population
#ZIPCityPopulationHomeowner %Median HH $
198029Issaquah30,58662.3%$170,759
298027East Renton Highlands28,95567.6%$153,301
Top 2 Issaquah ZIP codes by Homeowner GDP
#ZIPCityPopulationHomeowner %Median HH $Homeowner GDP
198029Issaquah30,58662.3%$170,759$1.3B
298027East Renton Highlands28,95567.6%$153,301$1.2B

Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.

Densest: 98029 (Issaquah) at 3,006 people/sq mi. Least dense: 98027 (East Renton Highlands) at 506 people/sq mi.

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