99691 ZIP Code — Nikolai, AK
Yukon Koyukuk County, Alaska
ZIP code 99691 is located in Nikolai, Alaska, within Yukon Koyukuk County. It covers approximately 4,624.72 square miles and serves a population of 91 residents. This is a standard ZIP code in the Alaska (AKT) timezone, served by area code 907.
91
population
4,624.72
sq mi land
Standard
ZIP type
Alaska (AKT)
timezone
99691 ZIP code map
Cities in ZIP code 99691
Below are the cities the US Postal Service accepts for ZIP code 99691. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Nikolai | Acceptable |
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 91 |
| Population density | 23 / sq mi |
| State FIPS | 02 |
| County FIPS | 290 |
| Geography | |
|---|---|
| Land area | 4,624.72 sq mi |
| Water area | 17.63 sq mi |
| Latitude | 63.0767 |
| Longitude | -154.4330 |
| Timezone | Alaska (AKT) |
| Area code | 907 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 68.4% | 57.9% | 29.8% |
| $50k – $100k | 19.3% | 28.7% | 32.4% |
| $100k – $200k | 12.3% | 11.4% | 28.9% |
| Over $200k | 0.0% | 2.0% | 8.8% |
Demographics & statistics
91
Population
23
People per sq mi
36.9
Median age
$0
Median household income
$31,762
Per capita income
$91,700
Median home value
$0
Median monthly rent
70.0%
Home ownership
53.8%
Poverty rate
1.7%
Unemployment
96
Housing units
11.3%
Bachelor's or higher
Age distribution
Male
Female
3
Under 5
2
3
5–9
3
17
25–34
14
4
35–44
3
10
45–54
9
2
55–59
2
4
60–64
3
2
65–74
1
3
75–84
3
2
85+
1
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 11 | 12.1% |
| 18 and over | 80 | 87.9% |
| 65 and over | 12 | 13.2% |
| Median age | 36.9 years | |
Race & ethnicity
American Indian / Alaska Native
54%
Two or more races
25%
Hispanic or Latino
9%
Other race
9%
Black or African American
2%
White
1%
| Group | Count | % |
|---|---|---|
| American Indian / Alaska Native | 54 | 54% |
| Two or more races | 25 | 25% |
| Hispanic or Latino | 9 | 9% |
| Other race | 9 | 9% |
| Black or African American | 2 | 2% |
| White | 1 | 1% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 68.4% | 57.9% | 29.8% |
| $50k – $100k | 19.3% | 28.7% | 32.4% |
| $100k – $200k | 12.3% | 11.4% | 28.9% |
| Over $200k | 0.0% | 2.0% | 8.8% |
Under $10k
33.3%
$15k–$25k
13.3%
$35k–$50k
18.3%
$50k–$75k
5.0%
$75k–$100k
5.0%
$100k–$150k
15.0%
$150k–$200k
10.0%
| Range | % of households |
|---|---|
| Under $10k | 33.3% |
| $15k–$25k | 13.3% |
| $35k–$50k | 18.3% |
| $50k–$75k | 5.0% |
| $75k–$100k | 5.0% |
| $100k–$150k | 15.0% |
| $150k–$200k | 10.0% |
| Median income | $0 |
Housing
Home values
Under $50k
21.4%
$50k–$100k
40.5%
$100k–$150k
7.1%
$150k–$200k
9.5%
$300k–$500k
21.4%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $91,700 |
| Median rent / month | $0 |
| Owner occupied | 70.0% |
| Renter occupied | 30.0% |
| Vacant | 47.4% |
| Single-family detached | 100.0% |
| Large apartment buildings | 0.0% |
| Mobile homes | 0.0% |
| Median rooms | 2.4 |
| Avg household size (owned) | 1.50 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 0.0% |
| 2000–2009 | 13.2% |
| 1990–1999 | 7.0% |
| 1980–1989 | 20.2% |
| 1970–1979 | 41.2% |
| 1960–1969 | 14.0% |
| 1950–1959 | 1.8% |
| 1940–1949 | 2.6% |
| 1939 or earlier | 0.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 23.7% |
| 1 bedroom | 32.5% |
| 2 bedrooms | 14.0% |
| 3 bedrooms | 21.9% |
| 4 bedrooms | 7.9% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 86.7% |
| 1 vehicle | 8.3% |
| 2 vehicles | 5.0% |
| 3 or more | 0.0% |
Heating fuel
| Fuel type | % |
|---|---|
| Fuel oil | 35.0% |
| Wood | 65.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 7 | 11.7% |
| Cohabiting couple | 16 | 26.7% |
| Male householder, no spouse | 18 | 30.0% |
| Female householder, no spouse | 19 | 31.7% |
| Households with children under 18 | 7 | 11.7% |
| Households with seniors (65+) | 12 | 20.0% |
| Average household size | 1.52 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 57.9% | 42.9% |
| Married | 18.4% | 23.8% |
| Separated | 7.9% | 0.0% |
| Widowed | 0.0% | 7.1% |
| Divorced | 15.8% | 26.2% |
Education
Less than 9th grade
11.3%
Some HS, no diploma
7.5%
HS graduate
36.3%
Some college, no degree
33.8%
Associate's degree
0.0%
Bachelor's degree
11.3%
Graduate / professional
0.0%
| Metric | % |
|---|---|
| HS diploma or higher | 81.3% |
| Bachelor's or higher | 11.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 2 | 13.3% |
| Elementary school | 6 | 40.0% |
| High school | 1 | 6.7% |
| College / grad school | 6 | 40.0% |
Employment
Industry of employment
Public administration
49.1%
Education & healthcare
21.1%
Agriculture & mining
10.5%
Transportation & utilities
8.8%
Arts, food & hospitality
8.8%
Retail trade
1.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 22.8% |
| Service | 29.8% |
| Sales & office | 21.1% |
| Natural resources & construction | 10.5% |
| Production & transportation | 15.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 28.1% |
| Government | 63.2% |
| Self-employed | 8.8% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 0.0% |
| Carpool | 0.0% |
| Public transit | 0.0% |
| Walk | 21.4% |
| Work from home | 2.4% |
| Other means | 76.2% |
| Avg commute (minutes) | 3.9 |
Poverty
All people
53.8%
Under 18 years
100.0%
18 and over
47.5%
Married-couple families
42.9%
Female-led households
100.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 16.7% |
| Retirement income | 10.0% |
| Supplemental Security | 6.7% |
| Cash public assistance | 8.3% |
| Food stamps / SNAP | 31.7% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 38.5% |
| High blood pressure | 41.8% |
| High cholesterol | 32.2% |
| Diabetes | 18.0% |
| Heart disease | 11.0% |
| Stroke | 6.4% |
| Asthma | 11.5% |
| Arthritis | 26.9% |
| Kidney disease | 4.6% |
| Pulmonary disease | 11.1% |
| Cancer | 6.3% |
| Behavior / access | % |
|---|---|
| Smoking | 35.2% |
| Binge drinking | 19.4% |
| No physical activity | 32.3% |
| Less than 7 hrs sleep | 36.6% |
| Depression | 18.6% |
| Fair or poor health | 26.6% |
| Poor mental health | 16.1% |
| Poor physical health | 17.2% |
| No health insurance | 18.2% |
| Visited doctor (checkup) | 64.3% |
| Visited dentist | 43.6% |
| Cholesterol screening | 84.0% |
| Teeth loss | 31.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 3 | 3.8% |
| Disability | % |
|---|---|
| Any disability | 40.7% |
| Under 18 | 27.3% |
| 18–64 years | 32.4% |
| 65 and over | 100.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 13.2% |
| Public insurance | 37.4% |
| No insurance | 52.7% |
| Uninsured under 19 | 72.7% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 86 | 94.5% |
| Spanish | 0 | 0.0% |
| Other Indo-European | 0 | 0.0% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 91 | 100.0% |
| Born in same state | 91 | 100.0% |
| Born in different state | 76 | 83.5% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 0 | 0.0% |
| Not a US citizen | 0 | 0.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2 | 2.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 65.9% |
| Internet access | 51.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 99691
What city is ZIP code 99691 in?
ZIP code 99691 is primarily assigned to Nikolai, Alaska.
What county is ZIP code 99691 in?
ZIP code 99691 falls within Yukon Koyukuk County, Alaska.
What is the poverty rate in ZIP code 99691?
54% of residents in ZIP code 99691 live below the poverty line, above the national average.
How educated is the population of ZIP code 99691?
11% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the typical home value in ZIP code 99691?
The median home value in ZIP code 99691 is $91,700.
What are the health statistics for ZIP code 99691?
Health data for ZIP code 99691 shows elevated rates of diabetes (18%) and smoking (35%) compared to national benchmarks.
What timezone is ZIP code 99691 in?
ZIP code 99691 observes the AKST timezone.