Seward, AK · standard
ZIP Code 99664
Kenai Peninsula County, Alaska — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4,932
- 1/sq mi
- $87,760
- Median income
- $384,600
- Median home value
- 40.8%
- Bachelor's or higher
The verdict
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.
ZIP code 99664 is classified by USPS as a standard delivery area and covers roughly 7045.7 square miles in Seward, Kenai Peninsula County, Alaska. The area is home to 4,932 residents, producing a population density of 1 people per square mile, and falls within the Anchorage time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 99664 against Alaska and the nation.
On the economic side, the median household income for ZIP 99664 sits at $87,760 (21% above the Alaska average), while per-capita income is $39,384. The poverty rate stands at 6.9% and the unemployment rate at 4.1%. On housing, the median home value is $384,600 (83% above the state average) with median rent at $1,205 per month, and 63.9% of occupied units are owner-occupied, a direct signal of whether 99664 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 40.8% of adults hold a bachelor's degree or higher, the median age is 42, and the average commute is —. Use the benchmarks above to see where 99664 sits relative to Alaska and the national baseline rather than viewing the numbers in isolation. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 99664
Top 5 sectors by establishment count
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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
$39,384
Per Capita Income
6.9%
Poverty Rate
4.1%
Unemployment Rate
How ZIP 99664 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$87,760 Top 29% higher than 71% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US 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?
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
$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.
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Frequently Asked Questions
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ZIP Code Research Guides
Official Data Resources for Seward, AK
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.