98303 ZIP Code — Anderson Island, WA

Pierce County, Washington

ZIP code 98303 is located in Anderson Island, Washington, within Pierce County. It covers approximately 7.93 square miles and serves a population of 1,621 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 253.

About ZIP code 98303

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $449,000.

The gap between median ($92,933) and mean household income suggests income inequality — a small number of higher earners pull the average up. Poverty affects 19% of residents, above the national average. 45% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 35 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 33% of residents holding a bachelor's degree or higher.

Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.

Overall, ZIP code 98303 reflects a community defined by economic challenges above the national average, a strong veteran community, high homeownership, and a significant Social Security-dependent population.

1,621

population

7.93

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

98303 ZIP code map

Cities in ZIP code 98303

Below are the cities the US Postal Service accepts for ZIP code 98303. Using any city not on this list may result in mail delivery delays.

City	Status
Anderson Island	Acceptable
Anderson Island	Acceptable

Demographics updated 06/2026

Population
Total population	1,621
Population density	204 / sq mi
State FIPS	53
County FIPS	053

Geography
Land area	7.93 sq mi
Water area	13.06 sq mi
Latitude	47.1557
Longitude	-122.7077
Timezone	Pacific (PT)
Area code	253

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.1%	31.0%	31.7%
$50k – $100k	18.3%	33.3%	30.6%
$100k – $200k	34.6%	28.4%	27.1%
Over $200k	5.0%	7.3%	10.6%

Demographics & statistics

1,621

Population

204

People per sq mi

60.2

Median age

$92,933

Median household income

$73,851

Per capita income

$449,000

Median home value

Median monthly rent

100.0%

Home ownership

18.9%

Poverty rate

0.0%

Unemployment

1,036

Housing units

33.4%

Bachelor's or higher

Age distribution

Male Female

5–9

10–14

15–19

25–34

35–44

179

45–54

148

121

55–59

100

171

60–64

142

233

65–74

192

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	135	8.3%
18 and over	1,486	91.7%
65 and over	506	31.2%
Median age	60.2 years

Race & ethnicity

White 82.6%

Two or more races 10%

Hispanic or Latino 2.6%

Other race 2.6%

Asian 2.2%

Group	Count	%
White	1,375	82.6%
Two or more races	167	10%
Hispanic or Latino	43	2.6%
Other race	43	2.6%
Asian	36	2.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.1%	31.0%	31.7%
$50k – $100k	18.3%	33.3%	30.6%
$100k – $200k	34.6%	28.4%	27.1%
Over $200k	5.0%	7.3%	10.6%

Under $10k 14.8%

$10k–$15k 1.0%

$15k–$25k 11.8%

$25k–$35k 1.8%

$35k–$50k 5.8%

$50k–$75k 11.0%

$75k–$100k 13.8%

$100k–$150k 19.4%

$150k–$200k 5.8%

$200k+ 14.8%

Range	% of households
Under $10k	14.8%
$10k–$15k	1.0%
$15k–$25k	11.8%
$25k–$35k	1.8%
$35k–$50k	5.8%
$50k–$75k	11.0%
$75k–$100k	13.8%
$100k–$150k	19.4%
$150k–$200k	5.8%
$200k+	14.8%
Median income	$92,933

Housing

Home values

$100k–$150k 1.9%

$150k–$200k 5.2%

$200k–$300k 18.2%

$300k–$500k 33.6%

$500k–$1M 35.5%

$1M+ 5.6%

Housing overview

Metric	Value
Median home value	$449,000
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	20.4%
Single-family detached	95.0%
Large apartment buildings	0.0%
Mobile homes	5.0%
Median rooms	5.8
Avg household size (owned)	1.96

Year built

Era	%
2020 or later	1.2%
2010–2019	7.7%
2000–2009	11.8%
1990–1999	36.2%
1980–1989	19.4%
1970–1979	9.6%
1960–1969	4.2%
1950–1959	5.8%
1940–1949	4.2%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.2%
2 bedrooms	22.7%
3 bedrooms	67.9%
4 bedrooms	5.3%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.1%
1 vehicle	15.9%
2 vehicles	34.5%
3 or more	47.5%

Heating fuel

Fuel type	%
Utility gas	2.2%
Electricity	84.5%
Propane / LP gas	1.0%
Fuel oil	1.9%
Wood	10.4%

Households & families

Household type	Count	%
Married-couple family	566	68.6%
Cohabiting couple	13	1.6%
Male householder, no spouse	168	20.4%
Female householder, no spouse	78	9.5%
Households with children under 18	46	5.6%
Households with seniors (65+)	371	45.0%
Average household size	1.96

Marital status

Status	Male	Female
Never married	10.9%	0.0%
Married	68.4%	87.8%
Separated	4.7%	0.0%
Widowed	1.5%	5.4%
Divorced	14.5%	6.8%

Education

Less than 9th grade 0.0%

Some HS, no diploma 0.0%

HS graduate 4.6%

Some college, no degree 45.7%

Associate's degree 16.3%

Bachelor's degree 21.5%

Graduate / professional 11.9%

Metric	%
HS diploma or higher	100.0%
Bachelor's or higher	33.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	30	18.8%
Elementary school	30	18.8%
High school	100	62.5%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 21.2%

Retail trade 18.8%

Transportation & utilities 15.3%

Professional & management 14.1%

Arts, food & hospitality 13.6%

Wholesale trade 6.8%

Manufacturing 3.0%

Public administration 3.0%

Information 2.8%

Construction 1.6%

Occupation

Category	%
Management, business & arts	53.4%
Service	4.7%
Sales & office	23.5%
Natural resources & construction	3.1%
Production & transportation	15.3%

Employment type

Type	%
Private sector	71.0%
Government	17.2%
Self-employed	11.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.6%
Carpool	4.2%
Public transit	3.1%
Walk	3.8%
Work from home	14.3%
Other means	0.0%
Avg commute (minutes)	35.2

Poverty

All people 18.9%

Under 18 years 0.0%

18 and over 20.6%

Married-couple families 23.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.3%
Retirement income	26.7%
Supplemental Security	1.1%
Cash public assistance	0.0%
Food stamps / SNAP	5.2%

Health indicators

Condition	%
Obesity	35.1%
High blood pressure	46.6%
High cholesterol	44.3%
Diabetes	13.4%
Heart disease	9.5%
Stroke	4.4%
Asthma	10.8%
Arthritis	36.4%
Kidney disease	4.1%
Pulmonary disease	9.4%
Cancer	10.3%

Behavior / access	%
Smoking	15.4%
Binge drinking	12.4%
No physical activity	22.8%
Less than 7 hrs sleep	30.4%
Depression	25.1%
Fair or poor health	17.1%
Poor mental health	13.8%
Poor physical health	13.9%
No health insurance	8.8%
Visited doctor (checkup)	75.4%
Visited dentist	66.2%
Cholesterol screening	92.7%
Teeth loss	12.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	212	14.3%

Disability	%
Any disability	10.0%
Under 18	21.5%
18–64 years	2.8%
65 and over	20.9%

Health insurance coverage

Type	%
Private insurance	78.5%
Public insurance	46.8%
No insurance	0.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,621	100.0%
Spanish	51	3.1%
Other Indo-European	0	0.0%
Asian & Pacific Islander	51	3.1%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,562	96.4%
Born in same state	1,562	96.4%
Born in different state	798	49.2%
Foreign born	0	0.0%
Naturalized citizen	59	3.6%
Not a US citizen	45	76.3%

Ancestry

Ancestry	Count	%
Italian	224	13.8%
Polish	96	5.9%
French	69	4.3%

Ancestry	Count	%
Arab	44	2.7%
English	29	1.8%
Dutch	25	1.5%

Technology access

Metric	% of households
Computer access	50.9%
Internet access	94.8%

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

Frequently asked questions about ZIP code 98303

What city is ZIP code 98303 in?

ZIP code 98303 is primarily assigned to Anderson Island, Washington.

What county is ZIP code 98303 in?

ZIP code 98303 falls within Pierce County, Washington.

Does ZIP code 98303 have an older population?

31% of residents in ZIP code 98303 are 65 or older, above the national average of ~17%.

Does ZIP code 98303 have a large retiree population?

45% of households in ZIP code 98303 receive Social Security income, suggesting a significant retiree or disability population.

What is the poverty rate in ZIP code 98303?

19% of residents in ZIP code 98303 live below the poverty line, above the national average.

Does ZIP code 98303 have a large veteran population?

14% of civilians in ZIP code 98303 are veterans, above the national average of ~7%.

What timezone is ZIP code 98303 in?

ZIP code 98303 observes the PST timezone.