Cosmopolis ZIP Codes — Grays Harbor County, WA

There is one unique ZIP code in Cosmopolis, Washington and it is 98537. Area code: 360/564.

ZIP codes

162.77

sq mi land

0.07

sq mi water

360/564

area code

Cosmopolis, WA ZIP code map

About Cosmopolis, WA

Cosmopolis is a charming city located in Grays Harbor County, Washington. Known for its rich history and scenic landscapes, it provides a unique blend of small-town charm and natural beauty. The community embraces both its historical roots and the modern conveniences of today, making it a desirable place to live and visit.

Location & geography

Cosmopolis is situated on the west side of the Cascade Range and is bordered by the Chehalis River, which enhances its picturesque setting. Nearby cities include Hoquiam located about 4 miles to the northwest, Aberdeen 5 miles to the southwest, Elma approximately 15 miles to the east, and Ocean Shores around 20 miles to the west. The city spans a total land area of 162.77 square miles and includes a small water area of 0.07 square miles.

Community & economy

The character of Cosmopolis is defined by its friendly residents and a strong sense of community. Historically, the local economy was rooted in timber and logging due to the surrounding forests, but it has diversified to include small businesses and services catering to residents and visitors alike. Daily life in Cosmopolis reflects a balance of work and leisure, with recreational opportunities in nearby parks and rivers enhancing the local lifestyle.

Transportation

Cosmopolis is accessible via State Route 107, which connects it to other towns and highways in the region. The nearest major airport is the Olympia Regional Airport, located approximately 50 miles to the southeast, while smaller airfields serve the area as well. Public transportation options are limited, emphasizing the importance of personal vehicles for travel.

History

Cosmopolis was founded in the late 19th century, primarily established as a logging community to capitalize on the abundant natural resources in the area. The city played a significant role in the timber industry during its early years, contributing to the economic development of Grays Harbor County. Notable events in the city's history include the establishment of the Cosmopolis Mill, which was a central part of the local economy for many decades.

Did you know?

One surprising fact about Cosmopolis is that it was named after the Greek word for 'worldly' or 'cosmopolitan', reflecting the founders' aspirations. Additionally, despite its small size, the city has a rich cultural history that is celebrated during various local events.

ZIP codes for Cosmopolis, WA (1)

ZIP code	City	County	Map
98537	Cosmopolis	Grays Harbor	View map

Demographics & statistics

3,008

Population

40.5

Median age

$70,135

Median household income

$32,044

Per capita income

$273,000

Median home value

$779

Median monthly rent

78.9%

Home ownership

8.2%

Poverty rate

9.6%

Unemployment

968

Housing units

18.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

181

5–9

187

10–14

15–19

100

20–24

103

168

25–34

174

154

35–44

159

224

45–54

230

55–59

60–64

140

65–74

145

129

75–84

132

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	751	25.0%
18 and over	2,257	75.0%
65 and over	579	19.2%
Median age	40.5 years

Race & ethnicity

White 80.1%

Two or more races 10.3%

Asian 4.6%

Hispanic or Latino 4%

American Indian / Alaska Native 1%

Other race 0.1%

Group	Count	%
White	2,509	80.1%
Two or more races	323	10.3%
Asian	143	4.6%
Hispanic or Latino	124	4%
American Indian / Alaska Native	30	1%
Other race	3	0.1%

Household income

Under $10k 3.6%

$10k–$15k 3.9%

$15k–$25k 7.7%

$25k–$35k 7.5%

$35k–$50k 9.8%

$50k–$75k 23.8%

$75k–$100k 10.9%

$100k–$150k 23.7%

$150k–$200k 4.5%

$200k+ 4.5%

Range	% of households
Under $10k	3.6%
$10k–$15k	3.9%
$15k–$25k	7.7%
$25k–$35k	7.5%
$35k–$50k	9.8%
$50k–$75k	23.8%
$75k–$100k	10.9%
$100k–$150k	23.7%
$150k–$200k	4.5%
$200k+	4.5%
Median income	$70,135

Housing

Home values

Under $50k 1.1%

$50k–$100k 4.5%

$100k–$150k 5.8%

$150k–$200k 14.9%

$200k–$300k 31.6%

$300k–$500k 32.3%

$500k–$1M 9.6%

$1M+ 0.1%

Housing overview

Metric	Value
Median home value	$273,000
Median rent / month	$779
Owner occupied	78.9%
Renter occupied	21.1%
Vacant	10.4%
Single-family detached	86.4%
Large apartment buildings	0.0%
Mobile homes	6.7%
Median rooms	6.1
Avg household size (owned)	2.97

Year built

Era	%
2020 or later	0.2%
2010–2019	1.1%
2000–2009	9.6%
1990–1999	10.9%
1980–1989	10.1%
1970–1979	17.8%
1960–1969	10.5%
1950–1959	10.3%
1940–1949	2.8%
1939 or earlier	26.7%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	6.9%
2 bedrooms	14.9%
3 bedrooms	52.9%
4 bedrooms	20.4%
5+ bedrooms	3.4%

Vehicles per household

Vehicles	% of households
No vehicle	1.6%
1 vehicle	26.1%
2 vehicles	33.6%
3 or more	38.8%

Heating fuel

Fuel type	%
Utility gas	0.8%
Electricity	76.9%
Propane / LP gas	3.5%
Fuel oil	1.1%
Wood	16.4%
Solar	0.4%

Households & families

Household type	Count	%
Married-couple family	594	55.5%
Cohabiting couple	109	10.2%
Male householder, no spouse	128	12.0%
Female householder, no spouse	239	22.3%
Households with children under 18	323	30.2%
Households with seniors (65+)	395	36.9%
Average household size	2.81

Marital status

Status	Male	Female
Never married	33.3%	25.8%
Married	53.6%	54.1%
Separated	0.2%	0.2%
Widowed	4.3%	13.2%
Divorced	8.5%	6.7%

Education

Less than 9th grade 3.9%

Some HS, no diploma 4.5%

HS graduate 30.4%

Some college, no degree 30.7%

Associate's degree 12.0%

Bachelor's degree 12.6%

Graduate / professional 6.0%

Metric	%
HS diploma or higher	91.7%
Bachelor's or higher	18.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	56	8.3%
Kindergarten	17	2.5%
Elementary school	394	58.3%
High school	158	23.4%
College / grad school	51	7.5%

Employment

Industry of employment

Education & healthcare 22.0%

Manufacturing 14.0%

Retail trade 10.9%

Public administration 8.0%

Arts, food & hospitality 7.8%

Finance & real estate 7.4%

Construction 7.3%

Other services 6.7%

Professional & management 5.0%

Transportation & utilities 4.8%

Agriculture & mining 4.5%

Information 0.9%

Wholesale trade 0.8%

Occupation

Category	%
Management, business & arts	34.4%
Service	12.7%
Sales & office	23.2%
Natural resources & construction	11.5%
Production & transportation	18.3%

Employment type

Type	%
Private sector	70.2%
Government	22.0%
Self-employed	6.8%
Unpaid family workers	1.0%

Commute

Method	%
Drive alone	79.7%
Carpool	11.4%
Public transit	0.8%
Walk	1.5%
Other means	0.0%
Avg commute (minutes)	22.9

Poverty

All people 8.2%

Under 18 years 5.6%

18 and over 9.0%

Married-couple families 4.5%

Female-led households 3.8%

Income support

Source	% of households
Social Security	43.0%
Retirement income	25.2%
Supplemental Security	4.3%
Cash public assistance	2.1%
Food stamps / SNAP	15.1%

Health indicators

Condition	%
High blood pressure	37.1%
High cholesterol	36.9%
Heart disease	8.1%
Stroke	3.9%
Asthma	12.0%
Arthritis	31.5%
Kidney disease	3.5%
Pulmonary disease	9.2%
Cancer	7.3%

Behavior / access	%
Binge drinking	15.7%
No physical activity	23.0%
Less than 7 hrs sleep	37.0%
Fair or poor health	18.5%
Poor mental health	17.1%
Poor physical health	14.0%
No health insurance	12.2%
Visited doctor (checkup)	70.8%
Visited dentist	55.8%
Cholesterol screening	87.3%
Teeth loss	18.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	151	6.7%

Disability	%
Any disability	15.3%
Under 18	0.9%
18–64 years	11.9%
65 and over	43.7%

Health insurance coverage

Type	%
Private insurance	71.3%
Public insurance	45.7%
Uninsured under 19	3.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,861	95.1%
Spanish	118	4.1%
Other Indo-European	23	0.8%
Asian & Pacific Islander	13	0.5%
Other languages	82	2.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,868	95.3%
Born in same state	2,865	95.2%
Born in different state	2,194	72.9%
Foreign born	3	0.1%
Naturalized citizen	140	4.7%
Not a US citizen	70	50.0%

Ancestry

Ancestry	Count	%
Italian	373	12.4%
French	279	9.3%
Polish	98	3.3%
Dutch	88	2.9%

Ancestry	Count	%
Arab	49	1.6%
English	30	1%
Irish	2	0.1%
German	1	0%

Technology access

Metric	% of households
Computer access	35.6%
Internet access	93.3%

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

Frequently asked questions

What ZIP codes does Cosmopolis, WA have?

Cosmopolis, WA has one ZIP code: 98537. Each ZIP code serves a distinct delivery area within the city and surrounding region.