PlainZIP

Ninilchik, AK · standard

ZIP Code 99639

Kenai Peninsula County, Alaska - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,131
2/sq mi
$47,333
Median income
$250,800
Median home value
25.3%
Bachelor's or higher

The verdict

Ninilchik pairs one of the lowest household incomes in the country with above-median home values, in a rural, homeowner-dominated area.

11th pct
household income, US ZIPs
Top 42%
home value, US ZIPs
2
people per sq mi
85%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 99639 against every reporting US ZIP.

ZIP code 99639 is a sparsely populated ZIP (a standard USPS delivery area) in Ninilchik, Kenai Peninsula County, Alaska, home to just 1,131 residents across 565.5 square miles, a density of 2 people per square mile, in the Anchorage time zone.

ZIP 99639 reports a modest median household income of $47,333 (35% below the Alaska average), while per-capita income is $33,502. The poverty rate stands at 19.7% and the unemployment rate at 5.5%. Housing costs here run $250,800 for a typical home value (19% above the state average), with rent averaging $1,007 a month; 85.3% of homes are owner-occupied.

Educational attainment sits below the national norm: 25.3% of adults hold a bachelor's degree or higher, the median age is 55.9, and the average commute is -. To put 99639 in local context, 1 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Kenai Peninsula County, for a geography-aware comparison.

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 99639

Top 5 sectors by establishment count in Ninilchik, AK

Which industries have the most business establishments in ZIP 99639.

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 · ZIP Code Business Patterns (ZBP) As of 2023

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 99639, Ninilchik, 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

1,131

Population

565.5

Area (sq mi)

2

People / sq mi

Anchorage

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 99639?

55.9

Median Age

50.3%

Male

49.7%

Female

2.3%

Foreign-Born

White 71.5%
African American 0.0%
Asian 1.1%
American Indian or Alaska Native 12.9%
Native Hawaiian or Pacific Islander 0.5%
Two or More Ethnicities 13.7%
Hispanic or Latino 2.6%

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?

$47,333

Median Household Income

-35% vs state

$33,502

Per Capita Income

19.7%

Poverty Rate

5.5%

Unemployment Rate

How ZIP 99639 ranks nationally

Ninilchik, AK household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$47,333 11th percentile higher than 11% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

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?

High School Graduate or Higher 57.8%
Bachelor's Degree or Higher 25.3%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

1,189

Total Housing Units

570

Occupied Units

619

Vacant Units

2.06

Avg Household Size

Occupancy Type

Owner 85.3%
Renter 14.7%

$250,800

Median Home Value

+19% vs state

$1,007

Median Rent

1994

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 39 business establishments in ZIP 99639, employing approximately 130 people with a combined annual payroll of $7,859,000.

39

Businesses

130

Employees

$7.9M

Annual Payroll

5

Industry Sectors

Industry Establishments % of Total
Accommodation and food services 10 25.6%
Retail trade 7 17.9%
Transportation and warehousing 4 10.3%
Construction 3 7.7%
Health care and social assistance 3 7.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 99639 vs 99568 →

ZIP Code City Population Distance
99568 Clam Gulch, AK 279 10.0 mi

More ZIP Codes in Kenai Peninsula County

99611 standard
Kenai, AK
Pop: 15,122
99669 standard
Soldotna, AK
Pop: 14,191
99603 standard
Homer, AK
Pop: 9,840
99664 standard
Seward, AK
Pop: 4,932
99672 standard
Sterling, AK
Pop: 3,704
99556 standard
Anchor Point, AK
Pop: 2,510

Related Areas

Kenai Peninsula County Ninilchik, AK Alaska

Frequently Asked Questions

What county is ZIP code 99639 in? ▼
ZIP code 99639 (Ninilchik) is located in Kenai Peninsula County, Alaska. Kenai Peninsula County contains multiple ZIP codes, see the full list at /counties/kenai-peninsula-ak.
What is the population of ZIP code 99639? ▼
ZIP code 99639 in Ninilchik, AK has a population of 1,131 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 99639? ▼
The median household income in ZIP 99639 is $47,333, which is 38% below the national average of $76,288.
What is the average home value in ZIP 99639? ▼
The median home value in ZIP 99639 is $250,800, which is 10% below the national average of $278,155.
What is the demographic makeup of ZIP 99639? ▼
The largest racial group in ZIP 99639 is White at 71.5%. Hispanic or Latino residents make up 2.6% of the population.
How many businesses are in ZIP code 99639? ▼
ZIP code 99639 has 39 business establishments employing approximately 130 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 99639? ▼
The top industries by establishment count in ZIP 99639 are: Accommodation and food services (10), Retail trade (7), Transportation and warehousing (4). There are 5 industry sectors represented in total.
What is the education level in ZIP code 99639? ▼
In ZIP code 99639, 57.8% of residents aged 25+ have a high school diploma or higher, and 25.3% 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 99639? ▼
In ZIP code 99639, approximately 85.3% of occupied housing units are owner-occupied and 14.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 99639? ▼
The poverty rate in ZIP code 99639 is 19.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.