What city is ZIP code 98178?

98178 is a Seattle, Washington ZIP code. Tukwila is also accepted as the city name.

What county is 98178 in?

ZIP code 98178 is in King County, Washington.

What time zone is ZIP code 98178 in?

98178 is in the Pacific Time zone (America/Los_Angeles).

What area code is 98178?

Phone numbers in ZIP code 98178 use area codes 206 and 425.

What is the population of ZIP code 98178?

About 26,748 people live in ZIP code 98178, according to the Census Bureau’s American Community Survey (2020–2024).

What is the median income in 98178?

The median household income in 98178 is $99,505 a year, higher than 69% of Washington ZIP codes.

What ZIP codes are near 98178?

The nearest ZIP codes to 98178 are 98057 (Renton, 1.6 miles), 98055 (Renton, 2.3 miles), 98056 (Renton, 2.7 miles) and 98168 (Seattle, 3.1 miles).

ZIP code 98178

Where is ZIP code 98178?

Seattle, Washington

King County · Standard ZIP code

ZIP code 98178 belongs to Seattle, Washington in King County. 98178 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Pacific Time zone and uses area codes 206 and 425. About 26,748 people live in the 98178 area, where the median household income is $99,505. The closest ZIP codes are 98057 (Renton, 1.6 mi southeast), 98055 (Renton, 2.3 mi southeast) and 98056 (Renton, 2.7 mi east).

ZIP code	98178
Type	Standard ZIP code for street addresses and PO Boxes
Status	Active
City	Seattle
Also accepted	Tukwila
State	Washington (WA)
County	King County
Time zone	Pacific Time · now
Area codes	206, 425
Coordinates	47.4924, -122.2359 map
3-digit prefix	981

Population and income in 98178

Population	26,748 · higher than 78% of Washington ZIP codes
People per square mile	5,458 · higher than 93% of Washington ZIP codes
Median age	39.7 years · lower than 57% of Washington ZIP codes
Men / women	50% / 50%
Median household income	$99,505 · higher than 69% of Washington ZIP codes
Income per person	$49,953
Below the poverty line	9.9%
Bachelor’s degree or higher	36% of adults 25+
Median home value	$660,400 · higher than 80% of Washington ZIP codes
Median rent	$1,869 a month
Housing units	9,988
Households	9,349 (2.84 people on average)
Owners / renters	67% / 33%
Land area	4.9 sq mi (plus 1.04 sq mi of water)

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 98178. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.

ZIP codes near 98178

ZIP code	City	Distance	Type
98057	Renton, WA	1.6 mi SE	Standard
98055	Renton, WA	2.3 mi SE	Standard
98056	Renton, WA	2.7 mi E	Standard
98168	Seattle, WA	3.1 mi W	Standard
98188	Seattle, WA	3.5 mi SW	Standard
98118	Seattle, WA	3.8 mi NW	Standard
98158	Seattle, WA	4.5 mi SW	Standard
98040	Mercer Island, WA	4.7 mi N	Standard
98108	Seattle, WA	4.9 mi NW	Standard
98148	Seattle, WA	5.3 mi SW	Standard
98059	Renton, WA	5.7 mi E	Standard
98146	Seattle, WA	5.8 mi W	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 98178 or measure the distance to another ZIP code.

How to address mail to 98178

JANE SMITH
123 MAIN ST
SEATTLE WA 98178

Put the city, the two-letter state code and the ZIP code on the last line. USPS also accepts TUKWILA as the city name for 98178. Avoid Bryn Mawr and Skyway: USPS doesn’t recognize them as the city for this ZIP code. Adding the 4-digit ZIP+4 code (98178-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Seattle, WA

All Seattle ZIP codes with population and income →

Questions

What city is ZIP code 98178?: 98178 is a Seattle, Washington ZIP code. Tukwila is also accepted as the city name.
What county is 98178 in?: ZIP code 98178 is in King County, Washington.
What time zone is ZIP code 98178 in?: 98178 is in the Pacific Time zone (America/Los_Angeles).
What area code is 98178?: Phone numbers in ZIP code 98178 use area codes 206 and 425.
What is the population of ZIP code 98178?: About 26,748 people live in ZIP code 98178, according to the Census Bureau’s American Community Survey (2020–2024).
What is the median income in 98178?: The median household income in 98178 is $99,505 a year, higher than 69% of Washington ZIP codes.
What ZIP codes are near 98178?: The nearest ZIP codes to 98178 are 98057 (Renton, 1.6 miles), 98055 (Renton, 2.3 miles), 98056 (Renton, 2.7 miles) and 98168 (Seattle, 3.1 miles).