Onalaska ZIP Codes — Lewis County, WA

There is one unique ZIP code in Onalaska, Washington and it is 98570. Area code: 360/564.
1
ZIP codes
126.01
sq mi land
0.04
sq mi water
360/564
area code
Onalaska, WA ZIP code map

About Onalaska, WA

Onalaska, Washington, is a quaint city located in Lewis County, known for its serene landscapes and close-knit community. The city, with its rich natural beauty, offers a peaceful retreat from the bustle of urban life. Residents and visitors alike enjoy the combination of rural charm and access to nearby recreational opportunities.

Location & geography

Onalaska is situated on a land area of 126.01 square miles, with an incredibly small water area of 0.04 square miles. It is located adjacent to the Cowlitz River and is surrounded by beautiful forests and rolling hills, which provide a picturesque setting. Nearby cities include Centralia about 17 miles to the northwest, Chehalis approximately 20 miles to the west, Napavine roughly 12 miles to the north, and Winlock about 12 miles to the south.

Community & economy

The character of Onalaska is deeply rooted in its agricultural heritage and community spirit, making it a warm and inviting place to live. The local economy is primarily driven by industries such as agriculture and forestry, which contribute to the town's rural identity. Daily life in Onalaska revolves around community events, outdoor activities, and local markets that showcase the region's produce and crafts.

Transportation

Onalaska is accessible via U.S. Route 12, which connects the city with larger urban centers and offers convenient travel options. The nearest commercial airport is located in nearby Olympia, which is approximately 40 miles to the west, providing regional flight services. Public transit options are limited, so having a personal vehicle is practical for getting around.

History

Onalaska was founded in the late 19th century, primarily as a logging and farming settlement, contributing to the development of the surrounding regions. The city's growth was largely influenced by the timber industry, which played a key role in its economy for many years. Over time, Onalaska has maintained its charm while adapting to modern changes, continuing to celebrate its historical roots.

Did you know?

One surprising fact about Onalaska is that it has a single ZIP code, 98570, which underscores its small-town ambiance. Additionally, despite its modest size, Onalaska is noted for its scenic beauty and proximity to natural attractions, making it a hidden gem in western Washington.

ZIP codes for Onalaska, WA (1)
ZIP code City County Map
98570 Onalaska Lewis View map

Demographics & statistics

4,417
Population
43.5
Median age
$67,996
Median household income
$28,806
Per capita income
$308,600
Median home value
$918
Median monthly rent
73.7%
Home ownership
12.1%
Poverty rate
4.6%
Unemployment
1,455
Housing units
11.7%
Bachelor's or higher

Age distribution

Male Female
144
Under 5
180
135
5–9
168
113
10–14
142
113
15–19
142
42
20–24
53
214
25–34
268
274
35–44
342
202
45–54
252
129
55–59
160
189
60–64
237
300
65–74
375
98
75–84
123
10
85+
12
← Male
Female →

Age summary

GroupCount%
Under 181,03523.4%
18 and over3,38276.6%
65 and over91820.8%
Median age43.5 years

Race & ethnicity

White 68.6%
Two or more races 14.9%
Hispanic or Latino 12.4%
American Indian / Alaska Native 2.3%
Other race 0.9%
Native Hawaiian / Pacific Islander 0.5%
Asian 0.2%
GroupCount%
White3,46268.6%
Two or more races75414.9%
Hispanic or Latino62712.4%
American Indian / Alaska Native1172.3%
Other race470.9%
Native Hawaiian / Pacific Islander240.5%
Asian120.2%

Household income

Under $10k 1.0%
$10k–$15k 2.2%
$15k–$25k 6.7%
$25k–$35k 10.2%
$35k–$50k 21.4%
$50k–$75k 13.4%
$75k–$100k 13.1%
$100k–$150k 20.9%
$150k–$200k 9.1%
$200k+ 2.0%
Range% of households
Under $10k1.0%
$10k–$15k2.2%
$15k–$25k6.7%
$25k–$35k10.2%
$35k–$50k21.4%
$50k–$75k13.4%
$75k–$100k13.1%
$100k–$150k20.9%
$150k–$200k9.1%
$200k+2.0%
Median income$67,996

Housing

Home values

Under $50k 4.9%
$50k–$100k 3.9%
$100k–$150k 12.4%
$150k–$200k 8.4%
$200k–$300k 17.9%
$300k–$500k 40.4%
$500k–$1M 11.4%
$1M+ 0.7%

Housing overview

MetricValue
Median home value$308,600
Median rent / month$918
Owner occupied73.7%
Renter occupied26.3%
Vacant15.8%
Single-family detached68.6%
Large apartment buildings0.0%
Mobile homes27.0%
Median rooms5.9
Avg household size (owned)2.70

Year built

Era%
2020 or later0.0%
2010–20197.0%
2000–200915.7%
1990–199910.5%
1980–198916.1%
1970–197922.1%
1960–19695.6%
1950–19595.9%
1940–19491.1%
1939 or earlier16.0%

Bedrooms

Size% of units
No bedroom (studio)2.1%
1 bedroom8.3%
2 bedrooms19.6%
3 bedrooms51.1%
4 bedrooms16.8%
5+ bedrooms2.1%

Vehicles per household

Vehicles% of households
No vehicle3.9%
1 vehicle10.3%
2 vehicles38.0%
3 or more47.7%

Heating fuel

Fuel type%
Utility gas0.1%
Electricity68.2%
Propane / LP gas10.7%
Wood18.5%

Households & families

Household typeCount%
Married-couple family1,03665.8%
Cohabiting couple251.6%
Male householder, no spouse1449.1%
Female householder, no spouse37023.5%
Households with children under 1852333.2%
Households with seniors (65+)61939.3%
Average household size2.80

Marital status

StatusMaleFemale
Never married20.1%20.4%
Married67.6%60.4%
Separated1.0%0.5%
Widowed1.9%8.7%
Divorced9.4%10.1%

Education

Less than 9th grade 5.5%
Some HS, no diploma 7.5%
HS graduate 29.5%
Some college, no degree 27.9%
Associate's degree 17.8%
Bachelor's degree 5.4%
Graduate / professional 6.3%
Metric%
HS diploma or higher87.0%
Bachelor's or higher11.7%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool151.7%
Kindergarten829.0%
Elementary school42246.5%
High school21723.9%
College / grad school17218.9%

Employment

Industry of employment

Education & healthcare 16.2%
Agriculture & mining 14.7%
Retail trade 12.7%
Public administration 11.3%
Arts, food & hospitality 8.1%
Professional & management 7.3%
Manufacturing 6.9%
Finance & real estate 6.9%
Construction 6.1%
Transportation & utilities 3.8%
Wholesale trade 3.0%
Other services 3.0%

Occupation

Category%
Management, business & arts21.6%
Service23.7%
Sales & office21.6%
Natural resources & construction18.7%
Production & transportation14.4%

Employment type

Type%
Private sector78.1%
Government18.9%
Self-employed3.0%
Unpaid family workers0.0%

Commute

Method%
Drive alone69.1%
Carpool8.3%
Public transit0.0%
Walk3.9%
Other means2.1%
Avg commute (minutes)32.1

Poverty

All people 12.1%
Under 18 years 24.7%
18 and over 8.3%
Married-couple families 9.3%
Female-led households 1.9%

Income support

Source% of households
Social Security46.9%
Retirement income37.6%
Supplemental Security4.8%
Cash public assistance3.2%
Food stamps / SNAP23.8%

Health indicators

Condition%
High blood pressure33.5%
High cholesterol36.8%
Heart disease7.4%
Stroke3.5%
Asthma10.9%
Arthritis30.1%
Kidney disease3.2%
Pulmonary disease7.9%
Cancer7.7%
Behavior / access%
Binge drinking16.9%
No physical activity20.1%
Less than 7 hrs sleep31.6%
Fair or poor health15.3%
Poor mental health15.5%
Poor physical health12.1%
No health insurance10.8%
Visited doctor (checkup)67.9%
Visited dentist62.9%
Cholesterol screening88.9%
Teeth loss13.2%

Veterans & disability

VeteransCount%
Civilian veterans38211.3%
Disability%
Any disability21.3%
Under 182.7%
18–64 years21.3%
65 and over42.6%

Health insurance coverage

Type%
Private insurance54.8%
Public insurance54.0%
Uninsured under 190.3%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only4,09392.7%
Spanish2325.7%
Other Indo-European1964.8%
Asian & Pacific Islander00.0%
Other languages360.9%

Place of birth & citizenship

OriginCount%
Native born (US)4,12093.3%
Born in same state4,08692.5%
Born in different state2,68260.7%
Foreign born340.8%
Naturalized citizen2976.7%
Not a US citizen8629.0%

Ancestry

AncestryCount%
Italian49611.2%
French48711%
Arab2335.3%
Polish2275.1%
AncestryCount%
Dutch581.3%
English491.1%
Irish110.2%

Technology access

Metric% of households
Computer access35.7%
Internet access97.6%

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

Frequently asked questions
What ZIP codes does Onalaska, WA have?
Onalaska, WA has one ZIP code: 98570. Each ZIP code serves a distinct delivery area within the city and surrounding region.
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