Postal Codes

99568 ZIP Code

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ZIP code 99568 covers Clam Gulch, Alaska, with a population of about 498 and a median household income of $87,250.

Population
4981 per square mile
Median age
55.516.8 points above the US average
Median household income
$87,250about the Alaska median
Poverty rate
7.2%5.2 points below the US average
Typical home value
$282,667up 5.4% in five years
Degree or higher
25.8%9.2 points below the US average
Homeownership
95.7%30.7 points above the US average
Time zone
Alaska UTC-09:00observes daylight saving time
Businesses
7

Where 99568 is

Clam Gulch, Alaska — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population498
Median age55.5
Family households58%
Born outside the US2.8%
Speaks a language other than English at home3.5%
White (non-Hispanic)92.6%
Black (non-Hispanic)0%
Asian (non-Hispanic)0%
Hispanic or Latino1.2%
Veterans7.3%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$87,250
Income per person$52,724
Poverty rate7.2%
Households on SNAP or cash assistance10.1%

Household income distribution

Under $10k5.8%
$10–15k6.3%
$15–20k4.3%
$20–25k4.8%
$25–30k0.0%
$30–35k0.0%
$35–40k0.0%
$40–45k8.2%
$45–50k1.9%
$50–60k4.3%
$60–75k7.7%
$75–100k15.9%
$100–125k11.6%
$125–150k7.7%
$150–200k0.0%
$200k or more21.3%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed170
Mean adjusted gross income$79,412
Returns declaring $200,000 or more0%
Returns, under $25k41.2%
Returns, $25k–$50k17.6%
Returns, $50k–$75k17.6%
Returns, $75k–$100k0.0%
Returns, $100k–$200k23.5%
Returns, $200k or more0.0%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$260,900
Owner-occupied95.7%
Vacant homes29.1%
Median year built1992

What the homes are

Detached house98.6%
Mobile home1.4%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$282,667as of 2026-07
Typical home value, 1 yearup 6%
Typical home value, 5 yearsup 5.4%
Typical home value, 10 yearsup 43.8%
Typical home value since 2000
201220192026$289,698$166,690

$166,690 in 2012 to $282,667 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate6.4%
Bachelor's degree or higher25.8%
High school diploma or higher97.3%
Works from home0%
Drives to work alone78.3%
Takes public transport0%
Commutes 45 minutes or more26.2%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity34.2% 0.8 pts above the national average of 33.4%
Diagnosed diabetes14% 2 pts above the national average of 12%
Currently smokes17.9% 4.7 pts above the national average of 13.2%
High blood pressure45.9% 11.8 pts above the national average of 34.1%
Fair or poor general health23.2% 2.9 pts above the national average of 20.3%
No health insurance (18–64)9.2% 2.1 pts below the national average of 11.3%
Depression18.8% 3.1 pts below the national average of 21.9%
No leisure-time physical activity25.8% same as the national average of 25.4%
Arthritis36.9% 11.8 pts above the national average of 25.1%
Binge drinking13.3% 2.7 pts below the national average of 16%
Taking blood pressure medication78.9% 4.2 pts above the national average of 74.7%
Cancer (non-skin)13.1% 5.4 pts above the national average of 7.7%
Current asthma10.6% same as the national average of 10.4%
Coronary heart disease10.4% 4.2 pts above the national average of 6.2%
Routine check-up in past year72.4% 4.3 pts below the national average of 76.7%
Cholesterol screening85.9% same as the national average of 85.9%
Cognitive disability12.8% 2 pts below the national average of 14.8%
Colorectal screening63.2% 1.1 pts below the national average of 64.3%
COPD11% 4.4 pts above the national average of 6.6%
Visited a dentist60% 1.3 pts below the national average of 61.3%
Any disability36% 5.3 pts above the national average of 30.7%
Lacks emotional support20.2% 4.6 pts below the national average of 24.8%
Food insecurity12.6% 4.5 pts below the national average of 17.1%
Received food stamps9.8% 4.5 pts below the national average of 14.3%
Hearing disability12.5% 5.8 pts above the national average of 6.7%
High cholesterol45.5% 9.3 pts above the national average of 36.2%
Housing insecurity8.8% 5 pts below the national average of 13.8%
Independent living disability8.8% same as the national average of 8.4%
Lacks transport7.1% 2.1 pts below the national average of 9.2%
Loneliness29.3% 5.1 pts below the national average of 34.4%
Mammography use57.2% 18.7 pts below the national average of 75.9%
Poor mental health (14+ days)13.3% 3.5 pts below the national average of 16.8%
Mobility disability19.2% 5.2 pts above the national average of 14%
Poor physical health (14+ days)17.5% 4 pts above the national average of 13.5%
Self-care disability5% 1 pts above the national average of 4%
Utility shut-off threat6.4% 2.4 pts below the national average of 8.8%
Sleeps under 7 hours29.1% 7.3 pts below the national average of 36.4%
Stroke5.4% 2 pts above the national average of 3.4%
All natural teeth lost15.1% 2.1 pts above the national average of 13%
Vision disability6% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments7
People employed11
Annual payroll$511,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 99.8% of US census tracts
FEMA ratingVery High
Expected annual loss99.8 out of 100
Community resilience2.7 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Wildfire99.7Very High at its worst in this ZIP code
Earthquake99.6Very High at its worst in this ZIP code
Landslide99.2Relatively High at its worst in this ZIP code
Winter weather98.9Very High at its worst in this ZIP code
Avalanche98.8Very High at its worst in this ZIP code
Volcanic activity94.7Relatively Low at its worst in this ZIP code
Tsunami94.3Relatively Moderate at its worst in this ZIP code
River flooding71.8Relatively Moderate at its worst in this ZIP code
Drought64.4Very Low at its worst in this ZIP code
Lightning46.3Relatively Low at its worst in this ZIP code
Ice storm32.9Very Low at its worst in this ZIP code
Cold wave25.4Relatively Low at its worst in this ZIP code
Hail15.9Very Low at its worst in this ZIP code
Coastal flooding3.4Very Low at its worst in this ZIP code
Tornado0.2Very Low at its worst in this ZIP code
Compared with Alaska and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPAlaskaUnited States
Median household income$87,250$89,336$78,538
Income per person$52,724$44,928$43,289
Poverty rate7.2%10.2%12.4%
Median home value$260,900$333,300$303,400
Median gross rent$1,388$1,348
Homeownership95.7%66.6%65%
Bachelor's degree or higher25.8%31.2%35%
Unemployment rate6.4%5.8%5.2%
Works from home0%8.8%13.5%
Born outside the US2.8%7.8%13.9%
Median age55.535.638.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationSOLDOTNA 5SSW, AK US25.4 km away
Rain in a year22 in

Average high and low by month

January21.2°F / 4.8°F1.42 in rain
February28.3°F / 9.4°F1.3 in rain
March34.6°F / 11.5°F0.74 in rain
April45.9°F / 24.4°F0.83 in rain
May56.1°F / 32.3°F0.85 in rain
June62.3°F / 40.3°F1.32 in rain
July65.5°F / 45°F2.03 in rain
August63.7°F / 42.6°F2.99 in rain
September55.2°F / 36.6°F3.95 in rain
October42.4°F / 25.5°F2.74 in rain
November28.1°F / 12°F1.76 in rain
December23.3°F / 8.1°F1.65 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket2% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket2% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Kenai Peninsula Borough School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability52more vulnerable than 52% of US census tracts
Socioeconomic status57more vulnerable than 57% of US census tracts
Household characteristics22more vulnerable than 22% of US census tracts
Racial and ethnic minority status21more vulnerable than 21% of US census tracts
Housing type and transport75more vulnerable than 75% of US census tracts
Walkability4.4 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

99610 Kasilof, AK11.1 km away
99639 Ninilchik, AK28 km away
99669 Soldotna, AK31.3 km away
99672 Sterling, AK43.2 km away
99611 Kenai, AK43.3 km away
99556 Anchor Point, AK47.2 km away
99635 Nikiski, AK52.6 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Kenai Peninsula Borough100% of this ZIP code's land area
Time zoneAlaska (UTC-09:00 standard)
Daylight saving timeObserved
Land area879.33 sq mi
Water area45.42 sq mi
Population density1 people per sq mi
Latitude, longitude60.2311, -151.3936

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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