98255 ZIP Code — Hamilton, WA

Skagit County, Washington

ZIP code 98255 is located in Hamilton, Washington, within Skagit County. It covers approximately 0.66 square miles and serves a population of 312 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 360/564.

About ZIP code 98255

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $300,000. Owner-occupancy is high at 84%, well above the national average.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 30 minutes is near the national average.

Educational attainment is near the national average, with 24% of residents holding a bachelor's degree or higher.

Overall, ZIP code 98255 reflects a community defined by economic challenges above the national average, high homeownership, and elevated reliance on food assistance.

312
population
0.66
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
98255 ZIP code map
Cities in ZIP code 98255

Below are the cities the US Postal Service accepts for ZIP code 98255. Using any city not on this list may result in mail delivery delays.

City Status
Hamilton Acceptable
Demographics updated 05/2026
Population
Total population 312
Population density 473 / sq mi
State FIPS 53
County FIPS 057
Geography
Land area 0.66 sq mi
Water area 0.00 sq mi
Latitude 48.5225
Longitude -121.9901
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 72.2% 33.8% 31.7%
$50k – $100k 26.8% 34.8% 30.6%
$100k – $200k 1.0% 25.1% 27.1%
Over $200k 0.0% 6.3% 10.6%

Demographics & statistics

312
Population
473
People per sq mi
45.8
Median age
$0
Median household income
$37,731
Per capita income
$300,000
Median home value
$2,021
Median monthly rent
84.1%
Home ownership
19.9%
Poverty rate
10.1%
Unemployment
122
Housing units
24.2%
Bachelor's or higher

Age distribution

Male Female
3
Under 5
4
5
5–9
5
7
10–14
7
19
15–19
20
1
20–24
1
12
25–34
12
27
35–44
28
32
45–54
33
29
55–59
29
4
60–64
4
13
65–74
13
2
75–84
2
← Male
Female →

Age summary

GroupCount%
Under 186119.6%
18 and over25180.4%
65 and over309.6%
Median age45.8 years

Race & ethnicity

White 74.9%
Hispanic or Latino 9%
Two or more races 7.9%
Other race 4.7%
Asian 3.5%
GroupCount%
White25774.9%
Hispanic or Latino319%
Two or more races277.9%
Other race164.7%
Asian123.5%

Household income

Income range This ZIP County avg State avg
Under $50k 72.2% 33.8% 31.7%
$50k – $100k 26.8% 34.8% 30.6%
$100k – $200k 1.0% 25.1% 27.1%
Over $200k 0.0% 6.3% 10.6%
Under $10k 8.3%
$10k–$15k 8.3%
$15k–$25k 9.0%
$25k–$35k 6.9%
$35k–$50k 11.7%
$50k–$75k 11.0%
$75k–$100k 4.1%
$100k–$150k 10.3%
$150k–$200k 30.3%
Range% of households
Under $10k8.3%
$10k–$15k8.3%
$15k–$25k9.0%
$25k–$35k6.9%
$35k–$50k11.7%
$50k–$75k11.0%
$75k–$100k4.1%
$100k–$150k10.3%
$150k–$200k30.3%
Median income$0

Housing

Home values

Under $50k 0.8%
$50k–$100k 3.3%
$100k–$150k 8.2%
$150k–$200k 13.9%
$200k–$300k 23.8%
$300k–$500k 50.0%

Housing overview

MetricValue
Median home value$300,000
Median rent / month$2,021
Owner occupied84.1%
Renter occupied15.9%
Vacant0.0%
Single-family detached79.3%
Large apartment buildings0.0%
Mobile homes9.7%
Median rooms6.8
Avg household size (owned)2.11

Year built

Era%
2020 or later0.0%
2010–20191.4%
2000–20094.1%
1990–19996.9%
1980–19894.1%
1970–197930.3%
1960–19698.3%
1950–19595.5%
1940–19493.4%
1939 or earlier35.9%

Bedrooms

Size% of units
No bedroom (studio)0.0%
1 bedroom7.6%
2 bedrooms10.3%
3 bedrooms67.6%
4 bedrooms8.3%
5+ bedrooms6.2%

Vehicles per household

Vehicles% of households
No vehicle0.0%
1 vehicle26.9%
2 vehicles58.6%
3 or more14.5%

Heating fuel

Fuel type%
Utility gas2.8%
Electricity42.1%
Propane / LP gas4.8%
Wood44.8%
No fuel used2.8%

Households & families

Household typeCount%
Married-couple family6846.9%
Cohabiting couple117.6%
Male householder, no spouse2215.2%
Female householder, no spouse4430.3%
Households with children under 184329.7%
Households with seniors (65+)2315.9%
Average household size2.15

Marital status

StatusMaleFemale
Never married22.8%21.4%
Married52.9%48.3%
Separated0.0%2.1%
Widowed11.0%13.8%
Divorced13.2%14.5%

Education

Less than 9th grade 4.6%
Some HS, no diploma 13.8%
HS graduate 16.3%
Some college, no degree 38.3%
Associate's degree 2.9%
Bachelor's degree 19.2%
Graduate / professional 5.0%
Metric%
HS diploma or higher81.7%
Bachelor's or higher24.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool00.0%
Kindergarten813.1%
Elementary school1626.2%
High school3049.2%
College / grad school711.5%

Employment

Industry of employment

Manufacturing 50.9%
Construction 19.0%
Retail trade 7.8%
Arts, food & hospitality 7.8%
Transportation & utilities 6.9%
Agriculture & mining 4.3%
Wholesale trade 1.7%
Professional & management 1.7%

Occupation

Category%
Management, business & arts48.3%
Service9.5%
Sales & office7.8%
Natural resources & construction14.7%
Production & transportation19.8%

Employment type

Type%
Private sector87.9%
Government0.0%
Self-employed12.1%
Unpaid family workers0.0%

Commute

Method%
Drive alone96.9%
Carpool0.0%
Public transit0.0%
Walk3.1%
Work from home0.0%
Other means0.0%
Avg commute (minutes)29.7

Poverty

All people 19.9%
Under 18 years 34.4%
18 and over 16.3%
Married-couple families 0.0%
Female-led households 54.1%

Income support

Source% of households
Social Security16.6%
Retirement income7.6%
Supplemental Security2.8%
Cash public assistance6.9%
Food stamps / SNAP18.6%

Health indicators

Condition%
Obesity34.6%
High blood pressure26.4%
High cholesterol32.6%
Diabetes8.3%
Heart disease5.5%
Stroke2.7%
Asthma11.1%
Arthritis23.2%
Kidney disease2.5%
Pulmonary disease6.5%
Cancer6.1%
Behavior / access%
Smoking17.2%
Binge drinking18.5%
No physical activity18.2%
Less than 7 hrs sleep31.5%
Depression28.2%
Fair or poor health13.0%
Poor mental health16.5%
Poor physical health10.7%
No health insurance10.8%
Visited doctor (checkup)66.4%
Visited dentist67.9%
Cholesterol screening86.9%
Teeth loss11.9%

Veterans & disability

VeteransCount%
Civilian veterans197.6%
Disability%
Any disability18.6%
Under 189.8%
18–64 years18.6%
65 and over36.7%

Health insurance coverage

Type%
Private insurance66.3%
Public insurance40.4%
No insurance7.7%
Uninsured under 197.6%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only30597.8%
Spanish62.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)28992.6%
Born in same state28992.6%
Born in different state10634.0%
Foreign born00.0%
Naturalized citizen237.4%
Not a US citizen14.3%

Ancestry

AncestryCount%
Italian8126%
French5216.7%
AncestryCount%
Dutch103.2%
Arab41.3%

Technology access

Metric% of households
Computer access46.5%
Internet access97.2%

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

Frequently asked questions about ZIP code 98255

What city is ZIP code 98255 in?

ZIP code 98255 is primarily assigned to Hamilton, Washington.

What county is ZIP code 98255 in?

ZIP code 98255 falls within Skagit County, Washington.

What is the poverty rate in ZIP code 98255?

20% of residents in ZIP code 98255 live below the poverty line, above the national average.

Is ZIP code 98255 mostly owner-occupied?

84% of occupied units in ZIP code 98255 are owner-occupied, well above the national average.

What is the population of ZIP code 98255?

ZIP code 98255 has an estimated population of 312 residents, with a density of 471 people per square mile.

What is the typical home value in ZIP code 98255?

The median home value in ZIP code 98255 is $300,000.

What timezone is ZIP code 98255 in?

ZIP code 98255 observes the PST timezone.

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