98223 ZIP Code, Arlington, WA

98223 is a ZIP code in Arlington, Washington in Snohomish County. It covers 316 square miles of land. The closest ZIP codes are 98274, 98258 and 98270. 46,497 people live here in 17,063 households, more than in 9 of every 10 Washington ZIP codes. With about 147 people per square mile it is lightly settled, and most homes are owner-occupied (78%). Median household income is $99,681, close to the Washington median of $98,141.

Quick facts

Key figures

MeasureValue
Residents46,497
Households17,063
Median household income$99,681
Income per person$46,879
Median age40.5
Homeowners77.6%
Median home value$601,400
Median rent$1,881
Bachelor's degree or higher21.8%
Average commute (minutes)33.8
Households with kids under 1832.2%
Moved in the past year13.4%
Below the poverty line8.5%
Broadband internet90.8%
Speak a non-English language at home10.2%

Household income

% of householdsValue
<$10K4.2%
$10–15K2.2%
$15–25K4.8%
$25–35K5.4%
$35–50K8.1%
$50–75K12.7%
$75–100K12.7%
$100–150K22.1%
$150–200K13.3%
$200K+14.5%

Age

% of all residentsValue
<1011.0%
10–1913.5%
20–245.6%
25–3411.4%
35–4413.8%
45–5413.2%
55–6414.6%
65–7410.5%
75+6.3%

Tenure

% of housing unitsValue
Owned, with mortgage51.5%
Owned outright20.8%
Rented20.7%
Vacant7.0%

Type of building

% of housing unitsValue
Detached house69.6%
Townhome3.9%
2–4 units2.9%
5–19 units4.8%
20+ units5.6%
Mobile / other13.2%

Businesses in 98223

1,174 business establishments with 14,383 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

98223 has 29 USPS carrier routes with 18,260 residential and 984 business mailboxes. Open the EDDM route map.

Carrier routes in 98223

98223 has 29 USPS carrier routes (3 city (C), 26 rural (R)) with 18,260 residential and 984 business mailboxes. Routes range from 333 homes (R030) to 1,051 homes (R020); the median route has 606 homes. The Census counted 17,063 households in 98223 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4993
500–74921
750–9994
1,000–1,4991
1,500+0

Best routes in 98223 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R012 — USPS business mailboxes 203, 676 homes
  2. Route C002 — USPS business mailboxes 166, 546 homes
  3. Route R025 — USPS business mailboxes 161, 720 homes
  4. Route R030 — USPS business mailboxes 99, 333 homes
  5. Route R015 — USPS business mailboxes 86, 638 homes

Select these 5 routes on the route map

Every carrier route in 98223

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City59715$81,499———
C002City546166$81,499———
C003City68335$82,400———
R001Rural6535$97,679———
R002Rural6260$79,158———
R003Rural4551$57,453———
R004Rural6320$145,287———
R005Rural5241$122,456———
R006Rural5996$56,764———
R007Rural76141$58,033———
R010Rural4683$104,326———
R011Rural6506$104,836———
R012Rural676203$138,968———
R013Rural5691$118,819———
R014Rural5579$121,216———
R015Rural63886$75,090———
R016Rural6060$104,836———
R017Rural6370$138,968———
R018Rural5894$97,679———
R019Rural5125$104,326———
R020Rural1,05122$75,090———
R022Rural50910$118,819———
R023Rural88280$94,077———
R024Rural7507$68,584———
R025Rural720161$68,025———
R026Rural5605$86,481———
R028Rural5455$169,472———
R029Rural9328$128,883———
R030Rural33399$68,025———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 98223 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 98223

Where it ranks

Mail every home in 98223

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 98223, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 98223 in?
98223 is a Arlington, WA mailing address. By land area, 4% lies inside Sisco Heights, 3% lies inside Arlington, 3% lies inside Arlington Heights and 2% lies inside Swede Heaven; the rest is outside any Census-defined city or community.
What county is 98223 in?
98223 is in Snohomish County.
What is the population of 98223?
About 46,497 people (±1,851), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 45,139.
What is the median household income in 98223?
$99,681 (±$7,056), compared with $98,141 for Washington as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 98223?
29 USPS carrier routes with 18,260 residential and 984 business mailboxes (19,251 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 98223?
The closest, measured center to center: 98274 (12.7 mi, Big Lake), 98258 (13.9 mi, Lake Stevens), 98270 (14.2 mi, Marysville), 98252 (15.4 mi, Verlot), 98271 (15.8 mi, Marysville) and 98292 (16.2 mi, Kayak Point).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.