Seward, AK · standard
ZIP Code 99664
Kenai Peninsula, Alaska - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4,932
- 1/sq mi Low-density area
- $87,760
- Median income Above-median income area
- $384,600
- Median home value Above-median home value
- 40.8%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Seward pairs an above-median household income with upper-quartile home values, in a rural, homeowner-dominated area.
- Top 29%
- household income, US ZIPs
- Top 22%
- home value, US ZIPs
- 1
- people per sq mi
- 64%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99664 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 99664 (Seward, AK) rose +20.6% from 2023 to 2024. The all-transactions index moved from 261.4 in 2023 to 315.3 in 2024 (2000 = 100).
ZIP code 99664 covers 7045.7 square miles in Seward, Kenai Peninsula, Alaska (a standard USPS delivery area), with a modest 4,932 residents on file, a density of 1 people per square mile, in the Anchorage time zone.
ZIP 99664 lands in the middle-income range, with a median household income of $87,760 (21% above the average Alaska ZIP), while per-capita income is $39,384. The poverty rate is 6.9%, with unemployment at 4.1%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $384,600 (83% above the average Alaska ZIP), while 63.9% of occupied homes are owner-occupied and median rent is $1,205.
A solid share of residents have a four-year degree: 40.8% of adults hold a bachelor's degree or higher, the median age is 42, and the average commute is -. No nearby ZIP peer set is available for this delivery area, so the Alaska and national benchmarks above are the appropriate context for 99664.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 99664
Top 5 sectors by establishment count in Seward, AK
Which industries have the most business establishments in ZIP 99664.
- Accommodation and food services
Accommodation and food services
72 establishments
- Transportation and warehousing
Transportation and warehousing
34 establishments
- Retail trade 26
Retail trade
26 establishments
- Health care and social assistance 25
Health care and social assistance
25 establishments
- Construction 14
Construction
14 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 99664, Seward, AK · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
4,932
Population
7045.7
Area (sq mi)
1
People / sq mi
Anchorage
Time Zone
standard
ZIP Type
Who lives in ZIP 99664?
42.0
Median Age
55.3%
Male
44.7%
Female
6.2%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$87,760
Median Household Income
+21% vs state ZIP avg
$39,384
Per Capita Income
6.9%
Poverty Rate
4.1%
Unemployment Rate
How ZIP 99664 ranks among Alaska ZIPs
Seward, AK household income vs. every Alaska ZIP code
Median household income among 197 reporting Alaska ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$87,760 Top 25% higher than 75% of 197 Alaska ZIPs
Each bar is a $20K-wide band; taller bars hold more Alaska ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
2,268housing units
2,268
Total Housing Units
1,697
Occupied Units
571
Vacant Units
2.26
Avg Household Size
Occupancy Type
$384,600
Median Home Value
+83% vs state ZIP avg
$1,205
Median Rent
1986
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+20.6%
YoY Change (2024)
315
HPI Index (2000 = 100)
+215%
Total Change Since 2000
Home values in ZIP 99664 have increased 20.6% over the past year (2024). Since 2000, this ZIP has seen +215% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +1.5% | 198 |
| 2021 | +10.5% | 219 |
| 2022 | +24.4% | 272 |
| 2023 | -4.0% | 261 |
| 2024 | +20.6% | 315 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 243 business establishments in ZIP 99664, employing approximately 1,420 people with a combined annual payroll of $97,930,000.
243
Businesses
1,420
Employees
$97.9M
Annual Payroll
14
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Accommodation and food services | 72 | 29.6% |
| Transportation and warehousing | 34 | 14.0% |
| Retail trade | 26 | 10.7% |
| Health care and social assistance | 25 | 10.3% |
| Construction | 14 | 5.8% |
| Other services (except public administration) | 13 | 5.3% |
| Arts, entertainment, and recreation | 12 | 4.9% |
| Real estate and rental and leasing | 10 | 4.1% |
| Manufacturing | 8 | 3.3% |
| Agriculture, forestry, fishing and hunting | 6 | 2.5% |
| Professional, scientific, and technical services | 6 | 2.5% |
| Administrative and support and waste management and remediation services | 6 | 2.5% |
| Finance and insurance | 5 | 2.1% |
| Wholesale trade | 3 | 1.2% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 99664, both outside AK so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (4,932 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Kenai Peninsula
Related Areas
Frequently Asked Questions
What county is ZIP code 99664 in?
ZIP code 99664 (Seward) is located in Kenai Peninsula, Alaska. Kenai Peninsula contains multiple ZIP codes, see the full list at /counties/kenai-peninsula-ak.
What is the population of ZIP code 99664?
ZIP code 99664 in Seward, AK has a population of 4,932 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99664?
The median household income in ZIP 99664 is $87,760, which is 15% above the national average of $76,288.
What is the average home value in ZIP 99664?
The median home value in ZIP 99664 is $384,600, which is 38% above the national average of $278,155.
What is the demographic makeup of ZIP 99664?
The largest racial group in ZIP 99664 is White at 84.6%. Hispanic or Latino residents make up 2.5% of the population.
How many businesses are in ZIP code 99664?
ZIP code 99664 has 243 business establishments employing approximately 1,420 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 99664?
The top industries by establishment count in ZIP 99664 are: Accommodation and food services (72), Transportation and warehousing (34), Retail trade (26). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 99664?
According to the FHFA House Price Index, home values in ZIP 99664 increased by 20.6% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 215%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 99664?
In ZIP code 99664, 69.9% of residents aged 25+ have a high school diploma or higher, and 40.8% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 99664?
In ZIP code 99664, approximately 63.9% of occupied housing units are owner-occupied and 36.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99664?
The poverty rate in ZIP code 99664 is 6.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 99664's numbers, next.
- See how ZIP 99664 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Seward, AK ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.