99664 ZIP Code — Seward, AK

Kenai Peninsula County, Alaska

ZIP code 99664 is located in Seward, Alaska, within Kenai Peninsula County. It covers approximately 2,688.34 square miles and serves a population of 4,197 residents. This is a standard ZIP code in the Alaska (AKT) timezone, served by area code 907.

About ZIP code 99664

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $275,300. Owner-occupancy sits near the national average at 65%.

Median household income is $78,200. The poverty rate of 7% is below the national average. 34% 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. The average commute of 13 minutes is near the national average.

Educational attainment is near the national average, with 35% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (24%) compared to national benchmarks.

4,197

population

2,688.34

sq mi land

Standard

ZIP type

Alaska (AKT)

timezone

99664 ZIP code map

Cities in ZIP code 99664

Below are the cities the US Postal Service accepts for ZIP code 99664. Using any city not on this list may result in mail delivery delays.

City	Status
Seward	Preferred

Demographics updated 05/2026

Population
Total population	4,197
Population density	2,099 / sq mi
State FIPS	02
County FIPS	122

Geography
Land area	2,688.34 sq mi
Water area	120.74 sq mi
Latitude	60.3160
Longitude	-149.2156
Timezone	Alaska (AKT)
Area code	907

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.4%	35.5%	29.8%
$50k – $100k	27.5%	32.4%	32.4%
$100k – $200k	30.9%	24.9%	28.9%
Over $200k	4.2%	7.2%	8.8%

Demographics & statistics

4,197

Population

2,099

People per sq mi

44.2

Median age

$78,200

Median household income

$35,743

Per capita income

$275,300

Median home value

$956

Median monthly rent

65.4%

Home ownership

7.2%

Poverty rate

3.7%

Unemployment

1,560

Housing units

35.3%

Bachelor's or higher

Age distribution

Male Female

118

Under 5

121

5–9

248

10–14

159

100

15–19

20–24

335

25–34

215

410

35–44

263

366

45–54

235

175

55–59

112

215

60–64

137

333

65–74

214

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	951	22.7%
18 and over	3,246	77.3%
65 and over	689	16.4%
Median age	44.2 years

Race & ethnicity

White 75.6%

American Indian / Alaska Native 9.4%

Two or more races 6.6%

Native Hawaiian / Pacific Islander 3.2%

Black or African American 2%

Asian 1.5%

Hispanic or Latino 1.2%

Other race 0.6%

Group	Count	%
White	3,211	75.6%
American Indian / Alaska Native	399	9.4%
Two or more races	279	6.6%
Native Hawaiian / Pacific Islander	137	3.2%
Black or African American	83	2%
Asian	62	1.5%
Hispanic or Latino	52	1.2%
Other race	26	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.4%	35.5%	29.8%
$50k – $100k	27.5%	32.4%	32.4%
$100k – $200k	30.9%	24.9%	28.9%
Over $200k	4.2%	7.2%	8.8%

Under $10k 4.3%

$10k–$15k 8.3%

$15k–$25k 3.8%

$25k–$35k 3.9%

$35k–$50k 15.4%

$50k–$75k 11.9%

$75k–$100k 17.3%

$100k–$150k 19.4%

$150k–$200k 11.1%

$200k+ 4.7%

Range	% of households
Under $10k	4.3%
$10k–$15k	8.3%
$15k–$25k	3.8%
$25k–$35k	3.9%
$35k–$50k	15.4%
$50k–$75k	11.9%
$75k–$100k	17.3%
$100k–$150k	19.4%
$150k–$200k	11.1%
$200k+	4.7%
Median income	$78,200

Housing

Home values

$50k–$100k 5.7%

$150k–$200k 9.1%

$200k–$300k 46.4%

$300k–$500k 30.2%

$500k–$1M 8.5%

Housing overview

Metric	Value
Median home value	$275,300
Median rent / month	$956
Owner occupied	65.4%
Renter occupied	34.6%
Vacant	27.0%
Single-family detached	73.8%
Large apartment buildings	0.0%
Mobile homes	6.1%
Median rooms	4.5
Avg household size (owned)	2.58

Year built

Era	%
2020 or later	0.0%
2010–2019	8.6%
2000–2009	17.3%
1990–1999	8.8%
1980–1989	32.4%
1970–1979	9.7%
1960–1969	3.8%
1950–1959	8.3%
1940–1949	3.6%
1939 or earlier	7.4%

Bedrooms

Size	% of units
No bedroom (studio)	9.3%
1 bedroom	18.7%
2 bedrooms	26.5%
3 bedrooms	34.3%
4 bedrooms	7.3%
5+ bedrooms	3.8%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	48.4%
2 vehicles	40.6%
3 or more	11.0%

Heating fuel

Fuel type	%
Utility gas	7.9%
Electricity	9.2%
Propane / LP gas	14.1%
Fuel oil	57.8%
Wood	8.7%

Households & families

Household type	Count	%
Married-couple family	749	49.1%
Cohabiting couple	48	3.1%
Male householder, no spouse	330	21.7%
Female householder, no spouse	397	26.0%
Households with children under 18	420	27.6%
Households with seniors (65+)	476	31.2%
Average household size	2.30

Marital status

Status	Male	Female
Never married	41.1%	24.0%
Married	44.6%	53.6%
Separated	0.7%	2.1%
Widowed	6.2%	12.2%
Divorced	7.3%	8.2%

Education

Less than 9th grade 0.2%

Some HS, no diploma 4.4%

HS graduate 35.4%

Some college, no degree 17.5%

Associate's degree 7.1%

Bachelor's degree 24.9%

Graduate / professional 10.4%

Metric	%
HS diploma or higher	95.4%
Bachelor's or higher	35.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	23	2.9%
Kindergarten	63	7.9%
Elementary school	517	64.5%
High school	129	16.1%
College / grad school	69	8.6%

Employment

Industry of employment

Education & healthcare 21.1%

Construction 17.1%

Public administration 15.6%

Arts, food & hospitality 11.3%

Agriculture & mining 7.8%

Professional & management 6.6%

Retail trade 5.9%

Other services 5.6%

Transportation & utilities 4.4%

Manufacturing 3.7%

Finance & real estate 1.0%

Occupation

Category	%
Management, business & arts	41.2%
Service	16.1%
Sales & office	11.6%
Natural resources & construction	23.0%
Production & transportation	8.0%

Employment type

Type	%
Private sector	66.0%
Government	25.3%
Self-employed	8.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	65.0%
Carpool	11.6%
Public transit	0.0%
Walk	9.8%
Work from home	7.8%
Other means	5.9%
Avg commute (minutes)	12.5

Poverty

All people 7.2%

Under 18 years 3.0%

18 and over 8.6%

Married-couple families 1.7%

Female-led households 0.0%

Income support

Source	% of households
Social Security	34.0%
Retirement income	30.6%
Supplemental Security	2.8%
Cash public assistance	2.8%
Food stamps / SNAP	9.4%

Health indicators

Condition	%
Obesity	35.3%
High blood pressure	33.6%
High cholesterol	30.5%
Diabetes	8.7%
Heart disease	6.0%
Stroke	3.1%
Asthma	10.0%
Arthritis	22.0%
Kidney disease	2.7%
Pulmonary disease	6.9%
Cancer	5.3%

Behavior / access	%
Smoking	23.6%
Binge drinking	20.2%
No physical activity	25.3%
Less than 7 hrs sleep	34.8%
Depression	17.5%
Fair or poor health	15.0%
Poor mental health	13.5%
Poor physical health	10.9%
No health insurance	15.6%
Visited doctor (checkup)	59.6%
Visited dentist	52.3%
Cholesterol screening	84.4%
Teeth loss	16.5%

Veterans & disability

Veterans	Count	%
Civilian veterans	221	6.8%

Disability	%
Any disability	6.3%
Under 18	2.2%
18–64 years	4.3%
65 and over	19.7%

Health insurance coverage

Type	%
Private insurance	67.6%
Public insurance	31.3%
No insurance	12.2%
Uninsured under 19	23.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,004	95.4%
Spanish	69	1.7%
Other Indo-European	23	0.6%
Asian & Pacific Islander	23	0.6%
Other languages	18	0.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,913	93.2%
Born in same state	3,771	89.8%
Born in different state	1,687	40.2%
Foreign born	142	3.4%
Naturalized citizen	284	6.8%
Not a US citizen	125	44.0%

Ancestry

Ancestry	Count	%
French	396	9.4%
Italian	284	6.8%
Polish	276	6.6%

Ancestry	Count	%
English	68	1.6%
Arab	58	1.4%
Norwegian	8	0.2%

Technology access

Metric	% of households
Computer access	36.3%
Internet access	94.7%

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

Frequently asked questions about ZIP code 99664

What city is ZIP code 99664 in?

ZIP code 99664 is primarily assigned to Seward, Alaska.

What county is ZIP code 99664 in?

ZIP code 99664 falls within Kenai Peninsula County, Alaska.

What is the population of ZIP code 99664?

ZIP code 99664 has an estimated population of 4,197 residents, with a density of 2 people per square mile.

What is the typical home value in ZIP code 99664?

The median home value in ZIP code 99664 is $275,300.

What is the median household income in ZIP code 99664?

The median household income in ZIP code 99664 is $78,200, above the national median of ~$75,000.

What timezone is ZIP code 99664 in?

ZIP code 99664 observes the AKST timezone.