What city is 98155 in?

98155 is a Seattle, WA mailing address. By land area, 53% lies inside Shoreline and 47% lies inside Lake Forest Park.

What is the population of 98155?

About 36,511 people (±991), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 35,948.

What is the median household income in 98155?

$131,540 (±$8,395), 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 98155?

24 USPS carrier routes with 16,373 residential and 407 business mailboxes (16,780 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 98155?

The closest, measured center to center: 98133 (2.2 mi, Shoreline), 98028 (2.5 mi, Kenmore), 98125 (2.6 mi, Seattle), 98043 (2.8 mi, Mountlake Terrace), 98177 (3.4 mi, Shoreline) and 98036 (3.9 mi, Lynnwood).

98155 ZIP Code, Seattle, WA

98155 is a ZIP code in Seattle, Washington in King County. It covers 7.5 square miles of land. The closest ZIP codes are 98133, 98028 and 98125. 36,511 people live here in 14,344 households. At about 4,840 people per square mile it is built up to city-neighborhood density, and most homes are owner-occupied (70%). Median household income is $131,540, above the Washington median of $98,141.

Quick facts

Mailing city: Seattle, WA
County: King County
Land area: 7.5 sq mi
Population: 36,511
Median household income: $131,540
Carrier routes: 24 (16,373 homes)

Key figures

Measure	Value
Residents	36,511
Households	14,344
Median household income	$131,540
Income per person	$67,259
Median age	40.7
Homeowners	70.2%
Median home value	$816,400
Median rent	$2,127
Bachelor's degree or higher	56.5%
Average commute (minutes)	26.6
Households with kids under 18	29.1%
Moved in the past year	11.7%
Below the poverty line	6.1%
Broadband internet	95.2%
Speak a non-English language at home	22.0%

Household income

% of households	Value
<$10K	2.1%
$10–15K	1.6%
$15–25K	3.2%
$25–35K	3.0%
$35–50K	5.9%
$50–75K	12.5%
$75–100K	11.2%
$100–150K	17.2%
$150–200K	15.6%
$200K+	27.6%

Age

% of all residents	Value
<10	11.0%
10–19	10.8%
20–24	4.6%
25–34	15.3%
35–44	13.2%
45–54	15.2%
55–64	12.2%
65–74	10.7%
75+	7.0%

Tenure

% of housing units	Value
Owned, with mortgage	49.4%
Owned outright	18.2%
Rented	28.4%
Vacant	4.1%

Type of building

% of housing units	Value
Detached house	68.0%
Townhome	5.4%
2–4 units	4.7%
5–19 units	5.8%
20+ units	15.8%
Mobile / other	0.2%

Businesses in 98155

671 business establishments with 4,619 employees (ZIP Codes Business Patterns 2023).

Construction: 104
Health Care and Social Assistance: 102
Professional, Scientific, and Technical Services: 97
Other Services (except Public Administration): 79
Retail Trade: 57
Administrative and Support and Waste Management and Remediation Services: 51
Real Estate and Rental and Leasing: 47
Accommodation and Food Services: 47

EDDM carrier routes

98155 has 24 USPS carrier routes with 16,373 residential and 407 business mailboxes. Open the EDDM route map.

Carrier routes in 98155

98155 has 24 USPS carrier routes (24 city (C)) with 16,373 residential and 407 business mailboxes. Routes range from 341 homes (C033) to 1,313 homes (C001); the median route has 603 homes. The Census counted 14,344 households in 98155 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	3
500–749	15
750–999	2
1,000–1,499	4
1,500+	0

Best routes in 98155 for…

Most businesses

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

Route C032 — USPS business mailboxes 66, 1,042 homes
Route C042 — USPS business mailboxes 65, 1,004 homes
Route C002 — USPS business mailboxes 47, 714 homes
Route C054 — USPS business mailboxes 42, 518 homes
Route C071 — USPS business mailboxes 30, 596 homes

Select these 5 routes on the route map

Every carrier route in 98155

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	1,313	7	$154,265	—	—	—
C002	City	714	47	$148,608	—	—	—
C012	City	647	1	$154,593	—	—	—
C013	City	750	19	$46,837	—	—	—
C022	City	699	17	$115,300	—	—	—
C023	City	557	3	$143,730	—	—	—
C031	City	897	23	$154,593	—	—	—
C032	City	1,042	66	$79,689	—	—	—
C033	City	341	4	$188,498	—	—	—
C041	City	1,044	4	$79,689	—	—	—
C042	City	1,004	65	$70,593	—	—	—
C043	City	550	2	$200,001+	—	—	—
C051	City	634	11	$89,788	—	—	—
C052	City	698	4	$130,316	—	—	—
C053	City	610	3	$200,001+	—	—	—
C054	City	518	42	$151,887	—	—	—
C061	City	467	15	$112,443	—	—	—
C071	City	596	30	$122,432	—	—	—
C072	City	592	16	$148,608	—	—	—
C073	City	468	2	$114,204	—	—	—
C081	City	593	14	$118,204	—	—	—
C091	City	580	1	$141,776	—	—	—
C092	City	526	8	$141,776	—	—	—
C093	City	533	3	$112,443	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 98155 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

98133 — Shoreline city, WA (2.2 mi)
98028 — Kenmore city, WA (2.5 mi)
98125 — Seattle city, WA (2.6 mi)
98043 — Mountlake Terrace city, WA (2.8 mi)
98177 — Shoreline city, WA (3.4 mi)
98036 — Lynnwood city, WA (3.9 mi)
98011 — Bothell city, WA (4.7 mi)
98020 — Edmonds city, WA (4.7 mi)

Areas that include 98155

Seattle, WA ZIP codes — 38 ZIP codes
Shoreline, WA ZIP codes — 3 ZIP codes
Lake Forest Park, WA ZIP codes — 1 ZIP code
King County ZIP codes — 88 ZIP codes
Washington ZIP code data

Where it ranks

Mail every home in 98155

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.

Seattle EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 98155, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 98155 in?: 98155 is a Seattle, WA mailing address. By land area, 53% lies inside Shoreline and 47% lies inside Lake Forest Park.
What county is 98155 in?: 98155 is in King County.
What is the population of 98155?: About 36,511 people (±991), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 35,948.
What is the median household income in 98155?: $131,540 (±$8,395), 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 98155?: 24 USPS carrier routes with 16,373 residential and 407 business mailboxes (16,780 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 98155?: The closest, measured center to center: 98133 (2.2 mi, Shoreline), 98028 (2.5 mi, Kenmore), 98125 (2.6 mi, Seattle), 98043 (2.8 mi, Mountlake Terrace), 98177 (3.4 mi, Shoreline) and 98036 (3.9 mi, Lynnwood).

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