Residential delivery area · Washington
ZIP Code 98223: Arlington, WA
ZIP code 98223 uses the postal name Arlington, Washington and lies entirely in Snohomish County (Census 2020 ZIP-county file). About 46,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $99,681 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Sisco Heights (4%), Arlington (3%), Arlington Heights (3%), Swede Heaven (2%), Bryant (2%), Canyon Creek (1%) and Oso (under 1%), and under 1% in smaller places; 84% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Arlington · its only residential ZIP
- County
- Snohomish County
- Census places
- Sisco Heights (4%) census-designated place; Arlington (3%); Arlington Heights (3%) census-designated place; Swede Heaven (2%) census-designated place
- Metro area
- Seattle-Tacoma-Bellevue, WA
- House districts
- WA-8 (88%), WA-1 (7%), WA-2 (4%) 119th Congress, by share of land
- State
- Washington
- Time zone
- Pacific
- Land area
- 316.2 sq mi · 147 people per sq mi
Where is ZIP code 98223?
98223 centers on 48.217°, -121.954° and covers 316.2 square miles of land plus 1.7 of water. It borders 7 ZIP codes: 98274, 98258, 98270, 98252, 98271, 98292, 98241.
The map draws ZIP code areas only. For the streets inside 98223, 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 98223 compare with the rest of Snohomish County?
| Measure | 98223 | In Snohomish County | In WA |
|---|---|---|---|
| People (ACS 2020-2024) | 46,497 | 5th of 30 | 29th of 605 |
| Median household income | $100k | 20th of 27 | 138th of 363 |
| Median home value | $601k | 20th of 28 | 128th of 392 |
Its median household income is higher than in 81% of U.S. residential ZIP codes, and it is denser than 59% 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 98223?
The 2020 Census counted 45,139 people in 98223; the ACS, which samples households over 2020-2024, estimates 46,497. Between the 2010 and 2020 censuses its population grew 10.6% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 46,497
- 2020 Census count
- 45,139+10.6% since 2010 (40,815)
- Households
- 17,063
- Median age
- 40.5
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 98223?
Of the 46,497 people the ACS estimates in 98223, 22.6% are under 18 and 16.8% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (76.6%), then Hispanic or Latino (10.5%).
- Under 1822.6%
- 18 to 6460.6%
- 65 and older16.8%
- White, not Hispanic76.6%
- Hispanic or Latino10.5%
- Other or two or more8.7%
- Asian, not Hispanic3.5%
- Black, not Hispanic0.7%
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 98223 earn?
Median household income is $99,681 (ACS 2020-2024), the 20th highest of the 27 ranked ZIP codes in Snohomish County. It is not measurably different from 2015-2019 ($108,337 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $99,681
- Income per person
- $46,879
- Below the poverty line
- 8.5%
- Unemployed (of the labor force)
- 3.2%
- Adults 25+ with a bachelor's degree
- 21.8%
- Adjusted gross income per tax return, 2022
- $89,24121,890 returns; wages 71% 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 98223?
FHFA's house price index for 98223, built from repeat sales and appraisals of the same homes, rose 124% from 2015 to 2025 and rose 50% from 2020 to 2025, and moved +4.2% in 2025.
- Median home value (owners' estimate)
- $601,400
- Median gross rent
- $1,881
- Homes owned by their occupants
- 77.6%
- Housing units
- 18,360
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 98223?
1,174 business establishments had a location in this ZIP code in 2023, 95 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction260
- Health care and social assistance120
- Other services (except public administration)108
- Manufacturing106
- Retail trade96
- Accommodation and food services90
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 98223?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 98274 | Mount Vernon | 18,860 | $96k | 12.7 mi |
| 98258 | Lake Stevens | 52,752 | $124k | 13.9 mi |
| 98270 | Marysville | 55,049 | $108k | 14.2 mi |
| 98252 | Granite Falls | 10,361 | $98k | 15.4 mi |
| 98271 | Marysville | 30,838 | $96k | 15.8 mi |
| 98292 | Stanwood | 27,389 | $102k | 16.2 mi |
| 98241 | Darrington | 2,339 | $73k | 37.4 mi |
| 98290 | Snohomish | 39,826 | $133k | 18.1 mi (near) |
| 98201 | Everett | 31,895 | $75k | 18.8 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.