Issaquah ZIP Codes — King County, WA

There are 2 unique ZIP codes in Issaquah, Washington. Area code: 425.

ZIP codes

67.36

sq mi land

1.12

sq mi water

425

area code

Issaquah, WA ZIP code map

About Issaquah, WA

Issaquah, Washington, is a charming city located in King County. Nestled in the scenic foothills of the Cascade Range, it is known for its beautiful parks and vibrant community. The city offers a blend of outdoor recreation and urban amenities, making it an attractive destination for residents and visitors alike.

Location & geography

Issaquah is situated approximately 17 miles east of Seattle and is bordered by the cities of Bellevue to the northwest and Sammamish to the northeast. The city encompasses a land area of 67.36 square miles, complemented by a water area of 1.12 square miles. The terrain features rolling hills and lush green spaces, with several lakes and rivers enhancing its natural beauty.

Community & economy

The character of Issaquah is defined by its family-friendly atmosphere and strong community spirit. The economy is diverse, with key industries including technology, healthcare, and retail, providing a robust job market. Daily life in Issaquah is enriched by numerous events, festivals, and recreational opportunities that foster engagement among residents.

Transportation

Issaquah is easily accessible via Interstate 90, which runs along the northern edge of the city and connects it to Seattle and other neighboring regions. The nearest airport is Seattle-Tacoma International Airport, located approximately 20 miles to the west. Public transportation options, including bus services, help residents navigate the area efficiently.

History

Issaquah was founded in the late 19th century and grew rapidly with the arrival of the railroad and the timber industry. The city's economy transitioned over the years, with notable developments in technology and retail. A significant event in its history is the annual Salmon Days Festival, which celebrates the city's rich history and ties to the local salmon population.

Did you know?

A surprising fact about Issaquah is that it is home to the historic Gilman Village, a unique shopping center that was once a 19th-century lumber mill. Additionally, Issaquah has a reputation for its abundant outdoor recreational opportunities, including hiking trails and natural parks.

ZIP codes for Issaquah, WA (2)

ZIP code	City	County	Map
98027	Issaquah	King	View map
98029	Issaquah	King	View map

Demographics & statistics

59,142

Population

38.3

Median age

$148,936

Median household income

$81,115

Per capita income

$910,750

Median home value

$2,378

Median monthly rent

66.1%

Home ownership

5.8%

Poverty rate

3.4%

Unemployment

16,473

Housing units

68.3%

Bachelor's or higher

Age distribution

Male Female

1,499

Under 5

1,522

1,894

5–9

1,923

1,880

10–14

1,908

1,677

15–19

1,703

1,004

20–24

1,019

4,962

25–34

5,037

5,146

35–44

5,224

4,307

45–54

4,372

1,860

55–59

1,888

1,339

60–64

1,359

1,936

65–74

1,965

1,246

75–84

1,265

599

85+

608

← Male

Female →

Age summary

Group	Count	%
Under 18	12,955	21.8%
18 and over	46,187	78.3%
65 and over	7,619	13.0%
Median age	38.3 years

Race & ethnicity

White 59.6%

Asian 23.2%

Two or more races 7.7%

Hispanic or Latino 4.8%

Other race 2.4%

Black or African American 1.9%

American Indian / Alaska Native 0.3%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
White	37,023	59.6%
Asian	14,402	23.2%
Two or more races	4,762	7.7%
Hispanic or Latino	2,999	4.8%
Other race	1,492	2.4%
Black or African American	1,160	1.9%
American Indian / Alaska Native	156	0.3%
Native Hawaiian / Pacific Islander	147	0.2%

Household income

Under $10k 3.1%

$10k–$15k 0.8%

$15k–$25k 3.8%

$25k–$35k 3.1%

$35k–$50k 3.0%

$50k–$75k 9.6%

$75k–$100k 9.7%

$100k–$150k 17.3%

$150k–$200k 14.9%

$200k+ 35.0%

Range	% of households
Under $10k	3.1%
$10k–$15k	0.8%
$15k–$25k	3.8%
$25k–$35k	3.1%
$35k–$50k	3.0%
$50k–$75k	9.6%
$75k–$100k	9.7%
$100k–$150k	17.3%
$150k–$200k	14.9%
$200k+	35.0%
Median income	$148,936

Housing

Home values

Under $50k 1.0%

$50k–$100k 0.2%

$100k–$150k 0.9%

$150k–$200k 1.5%

$200k–$300k 1.8%

$300k–$500k 10.8%

$500k–$1M 44.1%

$1M+ 40.0%

Housing overview

Metric	Value
Median home value	$910,750
Median rent / month	$2,378
Owner occupied	66.1%
Renter occupied	34.0%
Vacant	3.5%
Single-family detached	50.4%
Large apartment buildings	15.1%
Mobile homes	0.6%
Median rooms	5.6
Avg household size (owned)	2.56

Year built

Era	%
2020 or later	0.3%
2010–2019	16.5%
2000–2009	25.9%
1990–1999	19.2%
1980–1989	18.4%
1970–1979	10.6%
1960–1969	6.0%
1950–1959	1.4%
1940–1949	0.8%
1939 or earlier	1.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.4%
1 bedroom	8.5%
2 bedrooms	30.4%
3 bedrooms	30.6%
4 bedrooms	23.9%
5+ bedrooms	5.3%

Vehicles per household

Vehicles	% of households
No vehicle	3.7%
1 vehicle	33.9%
2 vehicles	44.8%
3 or more	17.6%

Heating fuel

Fuel type	%
Utility gas	50.6%
Electricity	44.9%
Propane / LP gas	2.1%
Fuel oil	1.2%
Wood	0.6%
Solar	0.5%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	13,761	58.1%
Cohabiting couple	1,838	7.8%
Male householder, no spouse	3,047	12.9%
Female householder, no spouse	5,066	21.4%
Households with children under 18	8,185	34.3%
Households with seniors (65+)	5,115	21.8%
Average household size	2.48

Marital status

Status	Male	Female
Never married	28.9%	26.9%
Married	61.6%	56.5%
Separated	0.6%	0.5%
Widowed	1.7%	6.1%
Divorced	7.3%	10.2%

Education

Less than 9th grade 1.4%

Some HS, no diploma 1.2%

HS graduate 8.7%

Some college, no degree 14.4%

Associate's degree 6.1%

Bachelor's degree 39.5%

Graduate / professional 28.8%

Metric	%
HS diploma or higher	97.5%
Bachelor's or higher	68.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1,056	7.8%
Kindergarten	884	6.6%
Elementary school	5,797	42.2%
High school	3,216	24.3%
College / grad school	2,630	19.3%

Employment

Industry of employment

Professional & management 24.2%

Retail trade 16.6%

Education & healthcare 16.6%

Arts, food & hospitality 7.4%

Manufacturing 6.8%

Finance & real estate 6.7%

Information 6.3%

Other services 3.8%

Transportation & utilities 3.7%

Construction 3.5%

Public administration 2.6%

Wholesale trade 1.8%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	66.3%
Service	9.8%
Sales & office	16.6%
Natural resources & construction	2.5%
Production & transportation	4.9%

Employment type

Type	%
Private sector	85.4%
Government	8.8%
Self-employed	5.7%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	52.2%
Carpool	7.5%
Public transit	7.0%
Walk	2.1%
Other means	1.7%
Avg commute (minutes)	29.8

Poverty

All people 5.8%

Under 18 years 7.5%

18 and over 5.3%

Married-couple families 3.1%

Female-led households 27.5%

Income support

Source	% of households
Social Security	20.0%
Retirement income	18.9%
Supplemental Security	1.1%
Cash public assistance	2.8%
Food stamps / SNAP	4.1%

Health indicators

Condition	%
High blood pressure	24.9%
High cholesterol	29.1%
Heart disease	4.0%
Stroke	2.0%
Asthma	8.8%
Arthritis	18.4%
Kidney disease	2.1%
Pulmonary disease	3.5%
Cancer	6.2%

Behavior / access	%
Binge drinking	18.5%
No physical activity	11.8%
Less than 7 hrs sleep	25.7%
Fair or poor health	8.1%
Poor mental health	11.9%
Poor physical health	6.9%
No health insurance	7.5%
Visited doctor (checkup)	68.3%
Visited dentist	76.3%
Cholesterol screening	90.8%
Teeth loss	6.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,321	5.1%

Disability	%
Any disability	7.9%
Under 18	4.0%
18–64 years	5.0%
65 and over	29.0%

Health insurance coverage

Type	%
Private insurance	87.6%
Public insurance	20.0%
Uninsured under 19	1.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	56,121	94.9%
Spanish	4,191	7.4%
Other Indo-European	402	0.7%
Asian & Pacific Islander	791	1.4%
Other languages	2,614	4.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	43,467	74.0%
Born in same state	42,742	72.8%
Born in different state	20,635	35.3%
Foreign born	725	1.2%
Naturalized citizen	15,675	26.1%
Not a US citizen	6,698	44.5%

Ancestry

Ancestry	Count	%
French	7,126	12%
Italian	4,028	6.8%
Polish	2,132	3.6%
Arab	1,816	3.1%
English	629	1.1%

Ancestry	Count	%
German	378	0.6%
Dutch	317	0.5%
Irish	261	0.4%
Norwegian	144	0.2%

Technology access

Metric	% of households
Computer access	40.2%
Internet access	98.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Issaquah, WA have?

Issaquah, WA has two ZIP codes: 98027 and 98029. Each ZIP code serves a distinct delivery area within the city and surrounding region.