98570 ZIP Code — Onalaska, WA

Lewis County, Washington

ZIP code 98570 is located in Onalaska, Washington, within Lewis County. It covers approximately 126.01 square miles and serves a population of 4,417 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 360/564.

About ZIP code 98570

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $308,600. Owner-occupancy sits near the national average at 74%.

Median household income is $67,996. SNAP benefit usage at 24% of households reflects economic stress in the area. 47% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Notable community characteristics include a notable veteran presence at 11% of civilians, above the national average of 7%.

Overall, ZIP code 98570 reflects a community defined by a trades-oriented workforce, a strong veteran community, a significant Social Security-dependent population, and elevated reliance on food assistance.

4,417

population

126.01

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

98570 ZIP code map

Cities in ZIP code 98570

Below are the cities the US Postal Service accepts for ZIP code 98570. Using any city not on this list may result in mail delivery delays.

City	Status
Onalaska	Acceptable
Onalaska	Preferred

Nearby ZIP codes

98542 Ethel (3.6 mi) 98582 Salkum (5 mi) 98533 Cinebar (7.6 mi) 98591 Toledo (9.1 mi) 98585 Silver Creek (10.1 mi) 98596 Winlock (11.6 mi) 98532 Chehalis (14.4 mi) 98532 Chehalis (14.4 mi) 98564 Mossyrock (14.4 mi) 98531 Centralia (17.6 mi) 98593 Vader (18.1 mi) 98576 Rainier (18.4 mi)

Demographics updated 05/2026

Population
Total population	4,417
Population density	35 / sq mi
State FIPS	53
County FIPS	041

Geography
Land area	126.01 sq mi
Water area	0.04 sq mi
Latitude	46.5793
Longitude	-122.6959
Timezone	Pacific (PT)
Area code	360/564

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.7%	46.0%	31.7%
$50k – $100k	33.4%	32.8%	30.6%
$100k – $200k	28.0%	18.5%	27.1%
Over $200k	0.8%	2.7%	10.6%

Demographics & statistics

4,417

Population

People per sq mi

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

20–24

214

25–34

268

274

35–44

342

202

45–54

252

129

55–59

160

189

60–64

237

300

65–74

375

75–84

123

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,035	23.4%
18 and over	3,382	76.6%
65 and over	918	20.8%
Median age	43.5 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%

Group	Count	%
White	3,462	68.6%
Two or more races	754	14.9%
Hispanic or Latino	627	12.4%
American Indian / Alaska Native	117	2.3%
Other race	47	0.9%
Native Hawaiian / Pacific Islander	24	0.5%
Asian	12	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.7%	46.0%	31.7%
$50k – $100k	33.4%	32.8%	30.6%
$100k – $200k	28.0%	18.5%	27.1%
Over $200k	0.8%	2.7%	10.6%

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 $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%
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

Metric	Value
Median home value	$308,600
Median rent / month	$918
Owner occupied	73.7%
Renter occupied	26.3%
Vacant	15.8%
Single-family detached	68.6%
Large apartment buildings	0.0%
Mobile homes	27.0%
Median rooms	5.9
Avg household size (owned)	2.70

Year built

Era	%
2020 or later	0.0%
2010–2019	7.0%
2000–2009	15.7%
1990–1999	10.5%
1980–1989	16.1%
1970–1979	22.1%
1960–1969	5.6%
1950–1959	5.9%
1940–1949	1.1%
1939 or earlier	16.0%

Bedrooms

Size	% of units
No bedroom (studio)	2.1%
1 bedroom	8.3%
2 bedrooms	19.6%
3 bedrooms	51.1%
4 bedrooms	16.8%
5+ bedrooms	2.1%

Vehicles per household

Vehicles	% of households
No vehicle	3.9%
1 vehicle	10.3%
2 vehicles	38.0%
3 or more	47.7%

Heating fuel

Fuel type	%
Utility gas	0.1%
Electricity	68.2%
Propane / LP gas	10.7%
Wood	18.5%

Households & families

Household type	Count	%
Married-couple family	1,036	65.8%
Cohabiting couple	25	1.6%
Male householder, no spouse	144	9.1%
Female householder, no spouse	370	23.5%
Households with children under 18	523	33.2%
Households with seniors (65+)	619	39.3%
Average household size	2.80

Marital status

Status	Male	Female
Never married	20.1%	20.4%
Married	67.6%	60.4%
Separated	1.0%	0.5%
Widowed	1.9%	8.7%
Divorced	9.4%	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 higher	87.0%
Bachelor's or higher	11.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	15	1.7%
Kindergarten	82	9.0%
Elementary school	422	46.5%
High school	217	23.9%
College / grad school	172	18.9%

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 & arts	21.6%
Service	23.7%
Sales & office	21.6%
Natural resources & construction	18.7%
Production & transportation	14.4%

Employment type

Type	%
Private sector	78.1%
Government	18.9%
Self-employed	3.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	69.1%
Carpool	8.3%
Public transit	0.0%
Walk	3.9%
Work from home	16.6%
Other means	2.1%
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 Security	46.9%
Retirement income	37.6%
Supplemental Security	4.8%
Cash public assistance	3.2%
Food stamps / SNAP	23.8%

Health indicators

Condition	%
Obesity	33.2%
High blood pressure	33.5%
High cholesterol	36.8%
Diabetes	10.5%
Heart disease	7.4%
Stroke	3.5%
Asthma	10.9%
Arthritis	30.1%
Kidney disease	3.2%
Pulmonary disease	7.9%
Cancer	7.7%

Behavior / access	%
Smoking	17.6%
Binge drinking	16.9%
No physical activity	20.1%
Less than 7 hrs sleep	31.6%
Depression	26.3%
Fair or poor health	15.3%
Poor mental health	15.5%
Poor physical health	12.1%
No health insurance	10.8%
Visited doctor (checkup)	67.9%
Visited dentist	62.9%
Cholesterol screening	88.9%
Teeth loss	13.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	382	11.3%

Disability	%
Any disability	21.3%
Under 18	2.7%
18–64 years	21.3%
65 and over	42.6%

Health insurance coverage

Type	%
Private insurance	54.8%
Public insurance	54.0%
No insurance	7.2%
Uninsured under 19	0.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,093	92.7%
Spanish	232	5.7%
Other Indo-European	196	4.8%
Asian & Pacific Islander	0	0.0%
Other languages	36	0.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	4,120	93.3%
Born in same state	4,086	92.5%
Born in different state	2,682	60.7%
Foreign born	34	0.8%
Naturalized citizen	297	6.7%
Not a US citizen	86	29.0%

Ancestry

Ancestry	Count	%
Italian	496	11.2%
French	487	11%
Arab	233	5.3%
Polish	227	5.1%

Ancestry	Count	%
Dutch	58	1.3%
English	49	1.1%
Irish	11	0.2%

Technology access

Metric	% of households
Computer access	35.7%
Internet access	97.6%

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

Frequently asked questions about ZIP code 98570

What city is ZIP code 98570 in?

ZIP code 98570 is primarily assigned to Onalaska, Washington.

What county is ZIP code 98570 in?

ZIP code 98570 falls within Lewis County, Washington.

Does ZIP code 98570 have a large retiree population?

47% of households in ZIP code 98570 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 98570?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Does ZIP code 98570 have a large veteran population?

11% of civilians in ZIP code 98570 are veterans, above the national average of ~7%.

What is the typical home value in ZIP code 98570?

The median home value in ZIP code 98570 is $308,600.

What timezone is ZIP code 98570 in?

ZIP code 98570 observes the PST timezone.