Postal Codes

99688 ZIP Code

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ZIP code 99688 covers Willow, Alaska, with a population of about 2,542 and a median household income of $67,907.

Population
2,5422 per square mile
Median age
47.38.6 points above the US average
Median household income
$67,90724% below the Alaska median
Poverty rate
15.6%3.2 points above the US average
Typical home value
$271,245up 12% in five years
Median rent
$1,331about the Alaska median
Degree or higher
25.2%9.8 points below the US average
Homeownership
90.3%25.3 points above the US average
Time zone
Alaska UTC-09:00observes daylight saving time
Businesses
62

Where 99688 is

Willow, 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

Population2,542
Median age47.3
Family households55.4%
Born outside the US1.5%
Speaks a language other than English at home5.8%
White (non-Hispanic)86.4%
Black (non-Hispanic)0%
Asian (non-Hispanic)0.5%
Hispanic or Latino3%
Veterans17.5%
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$67,907
Income per person$38,720
Poverty rate15.6%
Households on SNAP or cash assistance9.9%

Household income distribution

Under $10k6.9%
$10–15k2.4%
$15–20k6.0%
$20–25k5.1%
$25–30k4.3%
$30–35k0.9%
$35–40k5.5%
$40–45k9.0%
$45–50k1.6%
$50–60k4.9%
$60–75k10.0%
$75–100k12.4%
$100–125k11.2%
$125–150k6.1%
$150–200k5.1%
$200k or more8.5%

Income as declared to the IRS

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

Tax returns filed1,450
Mean adjusted gross income$76,141
Returns declaring $200,000 or more6.9%
Returns, under $25k28.3%
Returns, $25k–$50k19.3%
Returns, $50k–$75k14.5%
Returns, $75k–$100k11.0%
Returns, $100k–$200k20.0%
Returns, $200k or more6.9%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$266,700
Median gross rent$1,331
Rent as a share of household income23.8%
Owner-occupied90.3%
Vacant homes64.1%
Median year built1996

What the homes are

Detached house98.6%
2 to 4 units0.4%
5 to 19 units0.3%
Mobile home0.4%
Boat, RV or van0.3%
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$271,245as of 2026-07
Typical home value, 1 yearup 0.5%
Typical home value, 5 yearsup 12%
Typical home value, 10 yearsup 39.1%
Typical home value since 2000
201220192026$271,245$156,981

$156,981 in 2012 to $271,245 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate9.6%
Bachelor's degree or higher25.2%
High school diploma or higher95.1%
Works from home23.2%
Drives to work alone59%
Takes public transport0%
Commutes 45 minutes or more55.6%
Health

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

Obesity39.2% 5.8 pts above the national average of 33.4%
Diagnosed diabetes13.1% 1.1 pts above the national average of 12%
Currently smokes18.3% 5.1 pts above the national average of 13.2%
High blood pressure42.4% 8.3 pts above the national average of 34.1%
Fair or poor general health22% 1.7 pts above the national average of 20.3%
No health insurance (18–64)8.2% 3.1 pts below the national average of 11.3%
Depression20.6% 1.3 pts below the national average of 21.9%
No leisure-time physical activity25.7% same as the national average of 25.4%
Arthritis36.3% 11.2 pts above the national average of 25.1%
Binge drinking12.6% 3.4 pts below the national average of 16%
Taking blood pressure medication75.7% 1 pts above the national average of 74.7%
Cancer (non-skin)11% 3.3 pts above the national average of 7.7%
Current asthma10.7% same as the national average of 10.4%
Coronary heart disease9.5% 3.3 pts above the national average of 6.2%
Routine check-up in past year76.7% same as the national average of 76.7%
Cholesterol screening85.9% same as the national average of 85.9%
Cognitive disability13.6% 1.2 pts below the national average of 14.8%
Colorectal screening60.7% 3.6 pts below the national average of 64.3%
COPD9.9% 3.3 pts above the national average of 6.6%
Visited a dentist57.5% 3.8 pts below the national average of 61.3%
Any disability36.3% 5.6 pts above the national average of 30.7%
Lacks emotional support22.3% 2.5 pts below the national average of 24.8%
Food insecurity12.4% 4.7 pts below the national average of 17.1%
Received food stamps9.9% 4.4 pts below the national average of 14.3%
Hearing disability11.4% 4.7 pts above the national average of 6.7%
High cholesterol43.7% 7.5 pts above the national average of 36.2%
Housing insecurity9.9% 3.9 pts below the national average of 13.8%
Independent living disability8.7% same as the national average of 8.4%
Lacks transport7.7% 1.5 pts below the national average of 9.2%
Loneliness28.7% 5.7 pts below the national average of 34.4%
Mammography use66.7% 9.2 pts below the national average of 75.9%
Poor mental health (14+ days)14.2% 2.6 pts below the national average of 16.8%
Mobility disability17.3% 3.3 pts above the national average of 14%
Poor physical health (14+ days)16.3% 2.8 pts above the national average of 13.5%
Self-care disability4.7% 0.7 pts above the national average of 4%
Utility shut-off threat7.1% 1.7 pts below the national average of 8.8%
Sleeps under 7 hours32.4% 4 pts below the national average of 36.4%
Stroke4.7% 1.3 pts above the national average of 3.4%
All natural teeth lost16.3% 3.3 pts above the national average of 13%
Vision disability5.4% same as the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments62
People employed301
Annual payroll$14,728,000
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 99.9% of US census tracts
FEMA ratingRelatively High to Very High across the 4 census tracts this ZIP code covers
Expected annual loss99.9 out of 100
Community resilience1.1 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.

Avalanche99.8Very High at its worst in this ZIP code
Landslide98.4Relatively High at its worst in this ZIP code
Earthquake97.8Very High at its worst in this ZIP code
Wildfire97.8Relatively High at its worst in this ZIP code
Winter weather95.7Very High at its worst in this ZIP code
Cold wave87.8Relatively High at its worst in this ZIP code
Volcanic activity85.6Relatively Low at its worst in this ZIP code
Lightning32Relatively Low at its worst in this ZIP code
River flooding20.1Relatively Low at its worst in this ZIP code
Hail6Very Low at its worst in this ZIP code
Ice storm3.1Very 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$67,907$89,336$78,538
Income per person$38,720$44,928$43,289
Poverty rate15.6%10.2%12.4%
Median home value$266,700$333,300$303,400
Median gross rent$1,331$1,388$1,348
Homeownership90.3%66.6%65%
Bachelor's degree or higher25.2%31.2%35%
Unemployment rate9.6%5.8%5.2%
Works from home23.2%8.8%13.5%
Born outside the US1.5%7.8%13.9%
Median age47.335.638.7
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 stationWILLOW WEST, AK US16.7 km away

Average high and low by month

January15.3°F / -3.9°F
February24.9°F / 1.8°F
March34.3°F / 7.4°F
April46.4°F / 24.6°F
May58.3°F / 36.9°F
June66.6°F / 46.9°F
July68.4°F / 51.8°F
August65.1°F / 48.5°F
September56.3°F / 38.5°F
October40.6°F / 24°F
November23.5°F / 7.4°F
December17.5°F / 0.1°F
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 supermarket100% of this ZIP code's area
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarketNone of this ZIP code
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%.

Matanuska-Susitna 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 vulnerability51more vulnerable than 51% of US census tracts
Socioeconomic status71more vulnerable than 71% of US census tracts
Household characteristics23more vulnerable than 23% of US census tracts
Racial and ethnic minority status21more vulnerable than 21% of US census tracts
Housing type and transport53more vulnerable than 53% of US census tracts
Walkability3.5 out of 20Least walkable
Nearby ZIP codes

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

99694 Houston, AK31.2 km away
99676 Talkeetna, AK40.8 km away
99652 Big Lake, AK41.8 km away
99623 Wasilla, AK44.6 km away
99683 Trapper Creek, AK48.2 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.

Matanuska-Susitna Borough100% of this ZIP code's land area
Time zoneAlaska (UTC-09:00 standard)
Daylight saving timeObserved
Land area1677.35 sq mi
Water area10.24 sq mi
Population density2 people per sq mi
Latitude, longitude61.8966, -150.0038

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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