Residential delivery area · Washington
ZIP Code 98029: Issaquah, WA
ZIP code 98029 uses the postal name Issaquah, Washington and lies entirely in King County (Census 2020 ZIP-county file). About 31,000 people live there (Census Bureau, ACS 2020-2024), the more populous of Issaquah's 2 residential ZIP codes. Median household income is $170,759 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Issaquah (39%) and Sammamish (19%); 42% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Issaquah · 2 residential ZIPs
- County
- King County
- Census places
- Issaquah (39%); Sammamish (19%)
- Metro area
- Seattle-Tacoma-Bellevue, WA
- House district
- WA-8 119th Congress
- State
- Washington
- Time zone
- Pacific
- Land area
- 10.2 sq mi · 3,006 people per sq mi
Where is ZIP code 98029?
98029 centers on 47.558°, -122.012° and covers 10.2 square miles of land plus 0.3 of water. It borders 3 ZIP codes: 98075, 98027, 98024.
The map draws ZIP code areas only. For the streets inside 98029, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 98029 compare with the rest of Issaquah?
| Measure | 98029 | In Issaquah | In King County | In WA |
|---|---|---|---|---|
| People (ACS 2020-2024) | 30,586 | 1st of 2 | 33rd of 89 | 99th of 605 |
| Median household income | $171k | 1st of 2 | 17th of 78 | 21st of 363 |
| Median home value | $1.06M | 1st of 2 | 19th of 78 | 20th of 392 |
Its median household income is higher than in 98% of U.S. residential ZIP codes, and it is denser than 89% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 98029?
The 2020 Census counted 31,432 people in 98029; the ACS, which samples households over 2020-2024, estimates 30,586. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 30,586
- 2020 Census count
- 31,432
- Households
- 12,115
- Median age
- 37.2
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 98029?
Of the 30,586 people the ACS estimates in 98029, 24.1% are under 18 and 11.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (50.2%), then Asian (not Hispanic) (33.5%).
- Under 1824.1%
- 18 to 6464.0%
- 65 and older11.9%
- White, not Hispanic50.2%
- Asian, not Hispanic33.5%
- Other or two or more8.4%
- Hispanic or Latino5.9%
- Black, not Hispanic2.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 98029 earn?
Median household income is $170,759 (ACS 2020-2024), the 17th highest of the 78 ranked ZIP codes in King County.
- Median household income
- $170,759±$19,816
- Income per person
- $97,208
- Below the poverty line
- 4.9%
- Unemployed (of the labor force)
- 3.1%
- Adults 25+ with a bachelor's degree
- 72.2%
- Adjusted gross income per tax return, 2022
- $219,44214,170 returns; wages 81% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 98029?
FHFA's house price index for 98029, built from repeat sales and appraisals of the same homes, rose 133% from 2015 to 2025 and rose 59% from 2020 to 2025, and moved +20.4% in 2025.
- Median home value (owners' estimate)
- $1,063,200
- Median gross rent
- $2,740
- Homes owned by their occupants
- 62.3%
- Housing units
- 12,722
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 98029?
498 business establishments had a location in this ZIP code in 2023, 5 fewer than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services81
- Health care and social assistance70
- Real estate and rental and leasing52
- Retail trade46
- Accommodation and food services45
- Other services (except public administration)35
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 98029?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98075 | Sammamish | 25,498 | $250k+ | 2.3 mi |
| 98027 | Issaquah | 28,955 | $153k | 3.1 mi |
| 98024 | Fall City | 3,908 | $161k | 5.3 mi |
| 98050 | Preston | 108 | – | 3.4 mi (near) |
| 98074 | Sammamish | 30,761 | $244k | 4.7 mi (near) |
| 98008 | Bellevue | 27,242 | $185k | 5.8 mi (near) |
| 98006 | Bellevue | 40,009 | $198k | 6.6 mi (near) |
| 98059 | Renton | 42,406 | $139k | 7.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.