What city is 98101 in?

98101 is a Seattle, WA mailing address. By land area, 100% lies inside Seattle.

What is the population of 98101?

About 17,153 people (±1,436), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,237.

What is the median household income in 98101?

$128,882 (±$16,987), 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 98101?

14 USPS carrier routes with 13,359 residential and 2,071 business mailboxes (15,437 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 98101?

The closest, measured center to center: 98154 (0.3 mi, Seattle), 98164 (0.4 mi, Seattle), 98174 (0.4 mi, Seattle), 98104 (0.7 mi, Seattle), 98121 (0.7 mi, Seattle) and 98109 (1.4 mi, Seattle).

98101 ZIP Code, Seattle, WA

98101 is a ZIP code in Seattle, Washington in King County. It covers 0.5 square miles of land. The closest ZIP codes are 98154, 98164 and 98174. 17,153 people live here in 11,722 households. It is densely built, at about 32,487 people per square mile, and most households rent (14% own). Median household income is $128,882, above the Washington median of $98,141; 34% of residents moved in during the past year.

Quick facts

Mailing city: Seattle, WA
County: King County
Land area: 0.5 sq mi
Population: 17,153
Median household income: $128,882
Carrier routes: 14 (13,359 homes)

Key figures

Measure	Value
Residents	17,153
Households	11,722
Median household income	$128,882
Income per person	$121,888
Median age	33.8
Homeowners	13.5%
Median home value	$784,200
Median rent	$2,483
Bachelor's degree or higher	74.3%
Average commute (minutes)	21.6
Households with kids under 18	2.5%
Moved in the past year	33.6%
Below the poverty line	10.8%
Broadband internet	92.5%
Speak a non-English language at home	33.6%

Household income

% of households	Value
<$10K	6.7%
$10–15K	2.8%
$15–25K	3.4%
$25–35K	5.6%
$35–50K	5.2%
$50–75K	9.8%
$75–100K	8.4%
$100–150K	13.2%
$150–200K	14.2%
$200K+	30.8%

Age

% of all residents	Value
<10	2.1%
10–19	0.8%
20–24	10.8%
25–34	39.9%
35–44	13.1%
45–54	9.3%
55–64	11.3%
65–74	4.8%
75+	8.0%

Tenure

% of housing units	Value
Owned, with mortgage	6.3%
Owned outright	5.4%
Rented	74.6%
Vacant	13.7%

Type of building

% of housing units	Value
Detached house	1.6%
Townhome	0.5%
2–4 units	0.2%
5–19 units	2.3%
20+ units	95.5%
Mobile / other	0.0%

Businesses in 98101

2,609 business establishments with 96,469 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 654
Finance and Insurance: 315
Accommodation and Food Services: 313
Real Estate and Rental and Leasing: 233
Retail Trade: 229
Health Care and Social Assistance: 201
Other Services (except Public Administration): 199
Information: 127

EDDM carrier routes

98101 has 14 USPS carrier routes with 13,359 residential and 2,071 business mailboxes. Open the EDDM route map.

Carrier routes in 98101

98101 has 14 USPS carrier routes (14 city (C)) with 13,359 residential and 2,071 business mailboxes. Routes range from 158 homes (C002) to 1,835 homes (C049); the median route has 1,037 homes. The Census counted 11,722 households in 98101 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	2
500–749	2
750–999	1
1,000–1,499	6
1,500+	2

Best routes in 98101 for…

Most businesses

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

Route C018 — USPS business mailboxes 274, 270 homes
Route C027 — USPS business mailboxes 257, 257 homes
Route C021 — USPS business mailboxes 247, 1,047 homes
Route C016 — USPS business mailboxes 241, 658 homes
Route C002 — USPS business mailboxes 203, 158 homes

Select these 5 routes on the route map

Every carrier route in 98101

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C002	City	158	203	$49,175	—	—	—
C005	City	1,372	12	$82,264	—	—	—
C010	City	1,694	86	$110,466	—	—	—
C016	City	658	241	$49,175	—	—	—
C018	City	270	274	$128,220	—	—	—
C019	City	1,370	84	$179,159	—	—	—
C021	City	1,047	247	$63,594	—	—	—
C027	City	257	257	$128,220	—	—	—
C028	City	703	143	$93,198	—	—	—
C030	City	1,129	48	$128,220	—	—	—
C036	City	792	171	$126,227	—	—	—
C049	City	1,835	41	$179,159	—	—	—
C053	City	1,037	89	$200,001+	—	—	—
C092	City	1,037	175	$63,594	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 98101 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

98154 — Seattle city, WA (0.3 mi)
98164 — Seattle city, WA (0.4 mi)
98174 — Seattle city, WA (0.4 mi)
98104 — Seattle city, WA (0.7 mi)
98121 — Seattle city, WA (0.7 mi)
98109 — Seattle city, WA (1.4 mi)
98102 — Seattle city, WA (1.7 mi)
98122 — Seattle city, WA (1.9 mi)

Areas that include 98101

Where it ranks

Mail every home in 98101

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) 98101, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 98101 in?: 98101 is a Seattle, WA mailing address. By land area, 100% lies inside Seattle.
What county is 98101 in?: 98101 is in King County.
What is the population of 98101?: About 17,153 people (±1,436), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 16,237.
What is the median household income in 98101?: $128,882 (±$16,987), 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 98101?: 14 USPS carrier routes with 13,359 residential and 2,071 business mailboxes (15,437 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 98101?: The closest, measured center to center: 98154 (0.3 mi, Seattle), 98164 (0.4 mi, Seattle), 98174 (0.4 mi, Seattle), 98104 (0.7 mi, Seattle), 98121 (0.7 mi, Seattle) and 98109 (1.4 mi, Seattle).

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