ZIP Code Tabulation Area · Alaska

ZIP Code 99639: Ninilchik, AK

ZIP Code 99639 (Ninilchik, Kenai Peninsula Borough, Alaska) has an estimated 1,175 residents in 570 households. The median household income is $47,333, the median home value is $250,800 and the median gross rent is $1,007/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

1,175

Margin of error ±185

Median household income

$47,333

Margin of error ±$14,659

Median home value

$250,800

Margin of error ±$36,864

Median gross rent

$1,007/mo

Margin of error ±$287

Median age

55.9 yrs

Margin of error ±8.0 yrs

Mean travel time to work

18.4 min

Margin of error ±6.2 min

How ZIP 99639 compares with Alaska and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 9963955.9 yrsAlaska35.8 yrsUnited States38.9 yrs

Median household income

ZIP 99639$47,333Alaska$92,788United States$80,734

Per capita income

ZIP 99639$33,502Alaska$46,573United States$44,673

Poverty rate

ZIP 9963919.7%Alaska10.1%United States12.5%

Unemployment rate

ZIP 996395.5%Alaska5.9%United States5.2%

Bachelor's degree or higher

ZIP 9963925.3%Alaska31.7%United States35.7%

Median home value

ZIP 99639$250,800Alaska$352,900United States$332,700

Median gross rent

ZIP 99639$1,007/moAlaska$1,419/moUnited States$1,413/mo

Owner-occupied homes

ZIP 9963985.3%Alaska66.8%United States65.2%

Mean travel time to work

ZIP 9963918.4 minAlaska19.4 minUnited States26.4 min

Worked from home

ZIP 9963914.0%Alaska9.7%United States15.1%

All figures for ZIP 99639

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 99639 — ACS 2020–2024 5-year estimates
Measure	ZIP 99639	Margin of error	Alaska	United States
Total population	1,175	±185	735,706	334,922,499
Median age	55.9 yrs	±8.0 yrs	35.8 yrs	38.9 yrs
Households	570	±92	270,533	129,227,496
Median household income	$47,333	±$14,659	$92,788	$80,734
Per capita income	$33,502	±$4,202	$46,573	$44,673
Poverty rate	19.7%	±6.7 pts	10.1%	12.5%
Unemployment rate	5.5%	±3.4 pts	5.9%	5.2%
Bachelor's degree or higher	25.3%	±6.0 pts	31.7%	35.7%
Median home value	$250,800	±$36,864	$352,900	$332,700
Median gross rent	$1,007/mo	±$287	$1,419/mo	$1,413/mo
Owner-occupied homes	85.3%	±5.7 pts	66.8%	65.2%
Mean travel time to work	18.4 min	±6.2 min	19.4 min	26.4 min
Worked from home	14.0%	±8.1 pts	9.7%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 99639
Group	ZIP 99639	Alaska	United States
White alone, not Hispanic or Latino	71.5%	57.7%	57.4%
Black or African American alone, not Hispanic or Latino	0.0%	2.9%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	12.5%	13.2%	0.5%
Asian alone, not Hispanic or Latino	1.1%	6.4%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.5%	1.5%	0.2%
Some other race alone, not Hispanic or Latino	0.3%	0.7%	0.6%
Two or more races, not Hispanic or Latino	11.4%	10.3%	4.3%
Hispanic or Latino (of any race)	2.6%	7.3%	19.3%

Where ZIP 99639 is

State: Alaska
Main county: Kenai Peninsula Borough
Largest overlapping place: Ninilchik (52% of the ZIP's land area)
Land area: 359.23 sq mi· about 3 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Kenai Peninsula Borough

99556 Anchor Point, AK 99568 Kenai Peninsula Borough, AK 99572 Cooper Landing, AK 99603 Kenai Peninsula Borough, AK 99605 Hope, AK 99610 Cohoe, AK 99611 Kenai Peninsula Borough, AK 99631 Kenai Peninsula Borough, AK 99635 Kenai Peninsula Borough, AK 99663 Kenai Peninsula Borough, AK 99664 Kenai Peninsula Borough, AK 99669 Kenai Peninsula Borough, AK 99672 Sterling, AK 99682 Beluga, AK

See every ZIP code in Alaska, or compare ZIP 99639 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.