99751 ZIP Code
English Español
ZIP code 99751 covers Kobuk, Alaska, with a population of about 125.
- Population
- 1258 per square mile
- Poverty rate
- 36.8%24.4 points above the US average
- Median rent
- $1,3046% below the Alaska median
- Degree or higher
- 0%35 points below the US average
- Homeownership
- 52.6%12.4 points below the US average
- Time zone
- Alaska UTC-09:00observes daylight saving time
Where 99751 is
Kobuk, Alaska — the point the Postal Service gives for this ZIP code. A ZIP code is a set of delivery routes rather than an area, so this marks its centre, not its boundary.
People and households
American Community Survey 2019–2023 five-year estimates
| Population | 125 |
|---|---|
| Family households | 47.4% |
| Born outside the US | 0.8% |
| Speaks a language other than English at home | 17.4% |
| White (non-Hispanic) | 3.2% |
| Black (non-Hispanic) | 0% |
| Asian (non-Hispanic) | 0% |
| Hispanic or Latino | 0% |
| Veterans | 0% |
Income and poverty
American Community Survey 2019–2023 five-year estimates
| Income per person | $17,250 |
|---|---|
| Poverty rate | 36.8% |
| Households on SNAP or cash assistance | 42.1% |
Household income distribution
| Under $10k | |
|---|---|
| $10–15k | |
| $15–20k | |
| $20–25k | |
| $25–30k | |
| $30–35k | |
| $35–40k | |
| $40–45k | |
| $45–50k | |
| $50–60k | |
| $60–75k | |
| $75–100k | |
| $100–125k | |
| $125–150k | |
| $150–200k | |
| $200k or more |
Housing
American Community Survey 2019–2023 five-year estimates
| Median gross rent | $1,304 |
|---|---|
| Rent as a share of household income | 51% |
| Owner-occupied | 52.6% |
| Vacant homes | 32.1% |
| Median year built | 1992 |
What the homes are
| Detached house | |
|---|---|
| 2 to 4 units |
Work, commuting and education
American Community Survey 2019–2023 five-year estimates
| Unemployment rate | 5.4% |
|---|---|
| Bachelor's degree or higher | 0% |
| High school diploma or higher | 73.2% |
| Works from home | 0% |
| Drives to work alone | 0% |
| Takes public transport | 0% |
| Commutes 45 minutes or more | 9.7% |
Health
CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.
| Obesity | 40.2% 6.8 pts above the national average of 33.4% |
|---|---|
| Diagnosed diabetes | 12.5% 0.5 pts above the national average of 12% |
| Currently smokes | 30.1% 16.9 pts above the national average of 13.2% |
| High blood pressure | 33.9% same as the national average of 34.1% |
| Fair or poor general health | 32% 11.7 pts above the national average of 20.3% |
| No health insurance (18–64) | 17% 5.7 pts above the national average of 11.3% |
| Depression | 22.7% 0.8 pts above the national average of 21.9% |
| No leisure-time physical activity | 32.6% 7.2 pts above the national average of 25.4% |
| Arthritis | 21.7% 3.4 pts below the national average of 25.1% |
| Binge drinking | 17.6% 1.6 pts above the national average of 16% |
| Taking blood pressure medication | 61.7% 13 pts below the national average of 74.7% |
| Cancer (non-skin) | 4.8% 2.9 pts below the national average of 7.7% |
| Current asthma | 13.8% 3.4 pts above the national average of 10.4% |
| Coronary heart disease | 6.9% 0.7 pts above the national average of 6.2% |
| Routine check-up in past year | 63.4% 13.3 pts below the national average of 76.7% |
| Cholesterol screening | 66.3% 19.6 pts below the national average of 85.9% |
| Cognitive disability | 24.6% 9.8 pts above the national average of 14.8% |
| Colorectal screening | 49% 15.3 pts below the national average of 64.3% |
| COPD | 9.4% 2.8 pts above the national average of 6.6% |
| Visited a dentist | 37.1% 24.2 pts below the national average of 61.3% |
| Any disability | 45% 14.3 pts above the national average of 30.7% |
| Lacks emotional support | 34.1% 9.3 pts above the national average of 24.8% |
| Food insecurity | 38.8% 21.7 pts above the national average of 17.1% |
| Received food stamps | 30.6% 16.3 pts above the national average of 14.3% |
| Hearing disability | 10.3% 3.6 pts above the national average of 6.7% |
| High cholesterol | 29.6% 6.6 pts below the national average of 36.2% |
| Housing insecurity | 27.9% 14.1 pts above the national average of 13.8% |
| Independent living disability | 15.2% 6.8 pts above the national average of 8.4% |
| Lacks transport | 23.5% 14.3 pts above the national average of 9.2% |
| Loneliness | 41.5% 7.1 pts above the national average of 34.4% |
| Mammography use | 62.2% 13.7 pts below the national average of 75.9% |
| Poor mental health (14+ days) | 23.5% 6.7 pts above the national average of 16.8% |
| Mobility disability | 18.1% 4.1 pts above the national average of 14% |
| Poor physical health (14+ days) | 19.1% 5.6 pts above the national average of 13.5% |
| Self-care disability | 5.8% 1.8 pts above the national average of 4% |
| Utility shut-off threat | 19.9% 11.1 pts above the national average of 8.8% |
| Sleeps under 7 hours | 42.9% 6.5 pts above the national average of 36.4% |
| Stroke | 4.2% 0.8 pts above the national average of 3.4% |
| All natural teeth lost | 26.1% 13.1 pts above the national average of 13% |
| Vision disability | 10.5% 4.9 pts above the national average of 5.6% |
Natural hazard risk
FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.
| Overall risk | Higher than 99.4% of US census tracts |
|---|---|
| FEMA rating | Very High |
| Expected annual loss | 97.8 out of 100 |
| Community resilience | 1.9 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.
| Cold wave | 100Very High at its worst in this ZIP code |
|---|---|
| Winter weather | 99.7Very High at its worst in this ZIP code |
| Landslide | 99.1Relatively Moderate at its worst in this ZIP code |
| Wildfire | 95.2Relatively Moderate at its worst in this ZIP code |
| Earthquake | 84.1Relatively Moderate at its worst in this ZIP code |
| Avalanche | 52.8Very Low at its worst in this ZIP code |
| Lightning | 51.6Relatively Moderate at its worst in this ZIP code |
| Volcanic activity | 43.7Very Low at its worst in this ZIP code |
| Ice storm | 23.2Very Low at its worst in this ZIP code |
| River flooding | 21.4Relatively Low at its worst in this ZIP code |
| Tornado | 0.2Very 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 ZIP | Alaska | United States | |
|---|---|---|---|
| Median household income | — | $89,336 | $78,538 |
| Income per person | $17,250 | $44,928 | $43,289 |
| Poverty rate | 36.8% | 10.2% | 12.4% |
| Median home value | — | $333,300 | $303,400 |
| Median gross rent | $1,304 | $1,388 | $1,348 |
| Homeownership | 52.6% | 66.6% | 65% |
| Bachelor's degree or higher | 0% | 31.2% | 35% |
| Unemployment rate | 5.4% | 5.8% | 5.2% |
| Works from home | 0% | 8.8% | 13.5% |
| Born outside the US | 0.8% | 7.8% | 13.9% |
| Median age | — | 35.6 | 38.7 |
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 supermarket | 100% of this ZIP code's area |
|---|---|
| Far from a supermarket | None of this ZIP code |
| No vehicle and far from a supermarket | 100% 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%.
| Northwest Arctic Borough School District | 100% 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 vulnerability | 93more vulnerable than 93% of US census tracts |
|---|---|
| Socioeconomic status | 88more vulnerable than 88% of US census tracts |
| Household characteristics | 55more vulnerable than 55% of US census tracts |
| Racial and ethnic minority status | 93more vulnerable than 93% of US census tracts |
| Housing type and transport | 97more vulnerable than 97% of US census tracts |
| Walkability | 5.5 out of 20Least walkable |
Nearby ZIP codes
The closest ZIP codes by centre point, which is not the same as sharing a border.
| 99773 Shungnak, AK | 11.3 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.
| Northwest Arctic Borough | 100% of this ZIP code's land area |
|---|---|
| Time zone | Alaska (UTC-09:00 standard) |
| Daylight saving time | Observed |
| Land area | 15.51 sq mi |
| Water area | 0.51 sq mi |
| Population density | 8 people per sq mi |
| Latitude, longitude | 66.9072, -156.8811 |
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.