98115 ZIP Code, Seattle, WA

98115 is a ZIP code in Seattle, Washington in King County. It covers 6.6 square miles of land. The closest ZIP codes are 98105, 98125 and 98103. 54,349 people live here in 23,843 households, more than in 9 of every 10 Washington ZIP codes. At about 8,294 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (60% own). Median household income is $156,142, well above the Washington median of $98,141.

Quick facts

Key figures

MeasureValue
Residents54,349
Households23,843
Median household income$156,142
Income per person$91,860
Median age37.5
Homeowners59.7%
Median home value$1,094,600
Median rent$2,143
Bachelor's degree or higher80.6%
Average commute (minutes)24.9
Households with kids under 1825.5%
Moved in the past year17.7%
Below the poverty line5.9%
Broadband internet97.0%
Speak a non-English language at home16.6%

Household income

% of householdsValue
<$10K3.7%
$10–15K1.4%
$15–25K3.2%
$25–35K2.8%
$35–50K4.3%
$50–75K8.7%
$75–100K8.4%
$100–150K15.8%
$150–200K11.0%
$200K+40.8%

Age

% of all residentsValue
<109.2%
10–199.7%
20–245.3%
25–3422.2%
35–4414.4%
45–5413.4%
55–6411.2%
65–749.1%
75+5.4%

Tenure

% of housing unitsValue
Owned, with mortgage38.6%
Owned outright17.6%
Rented37.4%
Vacant6.4%

Type of building

% of housing unitsValue
Detached house59.7%
Townhome3.6%
2–4 units4.4%
5–19 units7.8%
20+ units24.5%
Mobile / other0.1%

Businesses in 98115

1,276 business establishments with 11,038 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

98115 has 44 USPS carrier routes with 26,226 residential and 930 business mailboxes. Open the EDDM route map.

Carrier routes in 98115

98115 has 44 USPS carrier routes (44 city (C)) with 26,226 residential and 930 business mailboxes. Routes range from 284 homes (C082) to 1,584 homes (C024); the median route has 526 homes. The Census counted 23,843 households in 98115 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49918
500–74917
750–9997
1,000–1,4991
1,500+1

Best routes in 98115 for…

Most businesses

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

  1. Route C026 — USPS business mailboxes 132, 616 homes
  2. Route C012 — USPS business mailboxes 80, 921 homes
  3. Route C022 — USPS business mailboxes 78, 1,125 homes
  4. Route C011 — USPS business mailboxes 55, 833 homes
  5. Route C001 — USPS business mailboxes 55, 669 homes

Select these 5 routes on the route map

Every carrier route in 98115

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City66955$126,063———
C003City5343$186,979———
C004City5122$200,001+———
C005City6689$108,159———
C011City83355$126,063———
C012City92180$200,001+———
C014City4284$182,307———
C022City1,12578$109,798———
C024City1,58428$107,461———
C026City616132$108,159———
C031City55715$186,979———
C032City4713$138,352———
C033City3675$188,199———
C036City86013$136,242———
C041City3705$188,199———
C042City52837$188,199———
C044City46344$156,719———
C045City59618$190,559———
C051City4021$145,224———
C052City53818$200,001+———
C053City3270$100,323———
C054City39116$190,559———
C055City97516$177,299———
C056City6711$190,559———
C061City3310$200,001+———
C062City4731$200,001+———
C064City30412$190,559———
C065City50213$190,559———
C071City73410$200,001+———
C072City50119$191,950———
C074City4632$139,479———
C075City4310$139,479———
C076City74511$190,559———
C082City2842$175,649———
C083City47330$191,950———
C084City3291$100,323———
C094City94739$123,130———
C095City47614$108,159———
C096City59737$108,159———
C100City3273$200,001+———
C102City52438$158,577———
C103City6031$200,001+———
C104City90618$107,461———
C111City87041$200,001+———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 98115 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 98115

Where it ranks

Mail every home in 98115

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) 98115, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 98115 in?
98115 is a Seattle, WA mailing address. By land area, 100% lies inside Seattle.
What county is 98115 in?
98115 is in King County.
What is the population of 98115?
About 54,349 people (±1,832), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 54,322.
What is the median household income in 98115?
$156,142 (±$10,611), 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 98115?
44 USPS carrier routes with 26,226 residential and 930 business mailboxes (27,157 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 98115?
The closest, measured center to center: 98105 (1.8 mi, Seattle), 98125 (2.3 mi, Seattle), 98103 (2.5 mi, Seattle), 98195 (2.5 mi, Seattle), 98112 (3.3 mi, Seattle) and 98034 (3.9 mi, Kirkland).

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