Postal Codes

99664 ZIP Code

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ZIP code 99664 covers Seward, Alaska, with a population of about 4,296 and a median household income of $83,101.

Population
4,2962 per square mile
Median age
43.24.5 points above the US average
Median household income
$83,1017% below the Alaska median
Poverty rate
7.6%4.8 points below the US average
Typical home value
$408,843up 32.8% in five years
Median rent
$1,15817% below the Alaska median
Degree or higher
39.4%4.4 points above the US average
Homeownership
67.8%2.8 points above the US average
Time zone
Alaska UTC-09:00observes daylight saving time
Businesses
242

Where 99664 is

Seward, Alaska — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population4,296
Median age43.2
Family households56.8%
Born outside the US8.4%
Speaks a language other than English at home7.8%
White (non-Hispanic)76.7%
Black (non-Hispanic)1.6%
Asian (non-Hispanic)0.5%
Hispanic or Latino3.4%
Veterans6.8%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$83,101
Income per person$38,696
Poverty rate7.6%
Households on SNAP or cash assistance9.9%

Household income distribution

Under $10k4.8%
$10–15k5.3%
$15–20k3.2%
$20–25k1.8%
$25–30k1.3%
$30–35k0.0%
$35–40k2.1%
$40–45k6.7%
$45–50k5.5%
$50–60k7.4%
$60–75k8.1%
$75–100k17.4%
$100–125k4.7%
$125–150k15.8%
$150–200k8.9%
$200k or more6.9%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed2,280
Mean adjusted gross income$79,339
Returns declaring $200,000 or more5.7%
Returns, under $25k25.0%
Returns, $25k–$50k23.2%
Returns, $50k–$75k15.8%
Returns, $75k–$100k10.5%
Returns, $100k–$200k19.7%
Returns, $200k or more5.7%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$335,500
Median gross rent$1,158
Rent as a share of household income33%
Owner-occupied67.8%
Vacant homes24.8%
Median year built1985

What the homes are

Detached house75.6%
Attached house2.9%
2 to 4 units6.6%
5 to 19 units9.1%
Mobile home5.7%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$408,843as of 2026-07
Typical home value, 1 yearup 13.7%
Typical home value, 5 yearsup 32.8%
Typical home value, 10 yearsup 83.8%
Typical home value since 2000
200520152026$408,843$182,187

$182,187 in 2005 to $408,843 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.1%
Bachelor's degree or higher39.4%
High school diploma or higher94%
Works from home6.7%
Drives to work alone62.5%
Takes public transport0%
Commutes 45 minutes or more5.5%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity31% 2.4 pts below the national average of 33.4%
Diagnosed diabetes7.8% 4.2 pts below the national average of 12%
Currently smokes14.5% 1.3 pts above the national average of 13.2%
High blood pressure30.2% 3.9 pts below the national average of 34.1%
Fair or poor general health15.7% 4.6 pts below the national average of 20.3%
No health insurance (18–64)9.2% 2.1 pts below the national average of 11.3%
Depression18.9% 3 pts below the national average of 21.9%
No leisure-time physical activity17.9% 7.5 pts below the national average of 25.4%
Arthritis21.4% 3.7 pts below the national average of 25.1%
Binge drinking19.9% 3.9 pts above the national average of 16%
Taking blood pressure medication66.3% 8.4 pts below the national average of 74.7%
Cancer (non-skin)7.4% same as the national average of 7.7%
Current asthma9.9% 0.5 pts below the national average of 10.4%
Coronary heart disease5.1% 1.1 pts below the national average of 6.2%
Routine check-up in past year62.9% 13.8 pts below the national average of 76.7%
Cholesterol screening79.1% 6.8 pts below the national average of 85.9%
Cognitive disability12.2% 2.6 pts below the national average of 14.8%
Colorectal screening59.9% 4.4 pts below the national average of 64.3%
COPD5.4% 1.2 pts below the national average of 6.6%
Visited a dentist58.9% 2.4 pts below the national average of 61.3%
Any disability25.6% 5.1 pts below the national average of 30.7%
Lacks emotional support22% 2.8 pts below the national average of 24.8%
Food insecurity11.3% 5.8 pts below the national average of 17.1%
Received food stamps7.3% 7 pts below the national average of 14.3%
Hearing disability6.8% same as the national average of 6.7%
High cholesterol34.2% 2 pts below the national average of 36.2%
Housing insecurity9.8% 4 pts below the national average of 13.8%
Independent living disability6.2% 2.2 pts below the national average of 8.4%
Lacks transport7.2% 2 pts below the national average of 9.2%
Loneliness31.9% 2.5 pts below the national average of 34.4%
Mammography use60.3% 15.6 pts below the national average of 75.9%
Poor mental health (14+ days)14.4% 2.4 pts below the national average of 16.8%
Mobility disability9.7% 4.3 pts below the national average of 14%
Poor physical health (14+ days)12.1% 1.4 pts below the national average of 13.5%
Self-care disability2.8% 1.2 pts below the national average of 4%
Utility shut-off threat6.5% 2.3 pts below the national average of 8.8%
Sleeps under 7 hours31.6% 4.8 pts below the national average of 36.4%
Stroke2.7% 0.7 pts below the national average of 3.4%
All natural teeth lost11.1% 1.9 pts below the national average of 13%
Vision disability3.7% 1.9 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments242
People employed1,324
Annual payroll$83,644,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 99.8% of US census tracts
FEMA ratingVery High
Expected annual loss99.8 out of 100
Community resilience2.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Landslide99.6Relatively High at its worst in this ZIP code
Avalanche99.2Very High at its worst in this ZIP code
Earthquake97.3Very High at its worst in this ZIP code
Winter weather94.5Very High at its worst in this ZIP code
Tsunami87.5Relatively High at its worst in this ZIP code
Wildfire84.3Relatively Low at its worst in this ZIP code
Coastal flooding57.9Relatively Low at its worst in this ZIP code
Lightning35.8Relatively Low at its worst in this ZIP code
Volcanic activity24Very Low at its worst in this ZIP code
Ice storm20.8Very Low at its worst in this ZIP code
River flooding20Relatively Low at its worst in this ZIP code
Hail10.4Very Low at its worst in this ZIP code
Cold wave5Very Low at its worst in this ZIP code
Tornado0.2Very Low at its worst in this ZIP code
Compared with Alaska and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPAlaskaUnited States
Median household income$83,101$89,336$78,538
Income per person$38,696$44,928$43,289
Poverty rate7.6%10.2%12.4%
Median home value$335,500$333,300$303,400
Median gross rent$1,158$1,388$1,348
Homeownership67.8%66.6%65%
Bachelor's degree or higher39.4%31.2%35%
Unemployment rate6.1%5.8%5.2%
Works from home6.7%8.8%13.5%
Born outside the US8.4%7.8%13.9%
Median age43.235.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSEWARD AP, AK US1.1 km away
Rain in a year70 in

Average high and low by month

January31.3°F / 21.1°F6.47 in rain
February34.3°F / 23.5°F6.35 in rain
March37.3°F / 24.9°F3.85 in rain
April45.4°F / 32.2°F4.29 in rain
May53.4°F / 39.2°F3.5 in rain
June59°F / 45.7°F2.34 in rain
July62.2°F / 50.2°F3.11 in rain
August62°F / 49.6°F5.39 in rain
September55.7°F / 43.4°F9.9 in rain
October45.7°F / 34.7°F8.69 in rain
November36.1°F / 26.6°F7.6 in rain
December33.2°F / 23.2°F8.22 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket69% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Kenai Peninsula Borough School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability44more vulnerable than 44% of US census tracts
Socioeconomic status49more vulnerable than 49% of US census tracts
Household characteristics19more vulnerable than 19% of US census tracts
Racial and ethnic minority status35more vulnerable than 35% of US census tracts
Housing type and transport63more vulnerable than 63% of US census tracts
Walkability5.6 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

99572 Cooper Landing, AK44.8 km away
99631 Moose Pass, AK53.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Kenai Peninsula Borough100% of this ZIP code's land area
Time zoneAlaska (UTC-09:00 standard)
Daylight saving timeObserved
Land area2688.34 sq mi
Water area120.74 sq mi
Population density2 people per sq mi
Latitude, longitude60.1329, -149.3985

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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