ZIP Code 99558 in Anvik, AK

Data Last Updated: February 1, 2026
City:Anvik, Alaska
Borough:Yukon Koyukuk Borough
Timezone:Alaska (GMT -09:00)
Local Time:9:22:18 AM
Population:70 [See All]
Area Code:907
Classification:PO Box
Coordinates:63.3026, -159.8683
Land Area:9.588 sq mi
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In the United States, a county equivalent is a political or administrative subdivision of a state. It has a specific geographic area and some level of governmental authority. The term "county" is used in 47 states. Alaska, Louisiana, and Connecticut have functionally equivalent subdivisions called Boroughs, Parishes, and Planning Regions, respectively. They functionally act like counties by subdividing the state.

99558 - Anvik, AK

ZIP Code 99558, Anvik

Tribal
LocationYukon Koyukuk County, AK
Area14.0 sq mi
Population70
Households21
PO Boxes6 Low Adoption (29%)
Median Age38.3 years
Seasonal Housing19%
ZIP CreatedBefore Oct 2004
Key Facts
  • Anvik has 70 residents spread across 14 square miles in the Yukon-Koyukuk Census Area of western Alaska.
  • 89% of the population is Alaska Native, making this a predominantly Indigenous community along the Yukon River.
  • The post office is one of only three business establishments in the ZIP code and employs seven people.
  • Households average 3.3 people, reflecting extended family living arrangements common in Alaska Native villages.
  • Only one street appears in USPS records (Main Street), with most mail delivered via rural carrier route and six PO Boxes available.
  • The median household income is $64,028, with 33 residents in the labor force and limited local employment options.

Geographic Context and Infrastructure

The numbers tell the story of geographic isolation. Yukon-Koyukuk Census Area covers some of Alaska's most remote terrain, and Anvik's ZIP code stretches across both land and water in a region where roads don't connect to larger highway systems. There's one documented street in the USPS database: Main Street. That single street has carrier delivery, but the community maintains six PO Boxes for residents who need them. The PO Box adoption rate of 0.29 means that while most households receive mail through the rural carrier route, a significant portion still relies on post office boxes.

Demographics and Housing

Households here average 3.3 people, higher than the national figure of 2.5. That pattern appears frequently in Alaska Native villages where extended families share homes. The median age of 38 years reflects a community with working-age adults and children, not the aging pattern seen in many rural areas of the Lower 48. Only 21 occupied housing units serve the population of 70, and those homes are valued at figures the American Community Survey can't report due to small sample sizes.

Economic Role of the Post Office

The post office in Anvik isn't just a place to pick up mail. It's one of three business establishments in the entire ZIP code, employing seven people according to Census business pattern data. For a community of 70, that makes the postal facility a major employer. The median household income of $64,028 sits above the national poverty line, supported in part by subsistence activities, seasonal work, and government employment. Two people work from home, and 33 residents participate in the labor force out of a working-age population that faces limited local employment options.

Mail Delivery System

Anvik's mail system uses Route R (Rural) and Route G (General Delivery) designations. The rural route serves Main Street and surrounding areas, while general delivery handles mail for residents without specific street addresses. This dual system reflects the reality of Alaska village life, where Western-style addressing systems don't always match how people actually live and receive services. The post office opened before October 2004 in USPS records, though the community itself has existed along the Yukon for far longer as a traditional Deg Hit'an Athabascan village site.

Street Name Patterns

Minimal Street Infrastructure Alaska Village

With only one documented street in USPS records, Anvik's address system reflects the reality of a small Alaska Native village where traditional geographic knowledge and general delivery often replace conventional street addressing. Main Street represents the limited Western-style infrastructure in a community that operates primarily through personal familiarity rather than formal addressing systems.

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Population & Demographics


ZIP Code 99558 has 70 residents and 21 households (average 3.33 persons per household). The median age is 38.3 years, slightly older than the state (35.6) and about the same as the nation (38.8). The gender split is 58.6% male and 41.4% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are American Indian & Alaska Native (88.6%, much higher than the state average of 15.2% and well above the national average of 1.1%) and White (4.3%, much lower than the state average of 59.4% and well below the national average of 61.6%); Hispanic or Latino residents make up 0.0%, which is much lower than the national average (18.7%), and American Indian & Alaska Native share is much higher than both the state (15.2%) and national averages (1.1%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:70Source: Census DHC
2024 ACS Population Estimate:79Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:7.3 people per sq mile
Average Income:$80,000Source: Census ACS
Households:21Source: Census DHC
Average House Value:$666,666,666Source: Census ACS
Persons Per Household:3.33Source: Census DHC
Average Family Size:5.00Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--1029499868786911041058593748579
Decennial Census85------------------70--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 38.3

Male Median Age: 38.2

Female Median Age: 43.5

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male416140434103324001
Female332112202151112011
Total748252636254436012
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:34.62%
Black:00%
Hispanic:*00%
Asian:00%
American Indian:6295.38%
Hawaiian:00%
Other:00%
Total:65100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:4158.57%38.2 years
Females:2941.43%43.5 years
Total:70100%38.3 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:79100.00%
Native, born in PR, Island Areas, or abroad:00.00%
Foreign born, naturalized U.S. citizen:00.00%
Foreign born, not a U.S. citizen:00.00%
Total Population:79100%
Total Native Population:79100.00%
Total Foreign-born Population:00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $80,000, which is roughly equal to the national median ($80,734), is up $65,357 (446.3%) since 2011 and above its 2019 pre-pandemic level by $38,750. Family households earn a median of $92,083 versus $48,750 for nonfamily households (a difference of $43,333). By gender, male median income is $0 and female is $49,375, which is well under the national female median ($55,274), with a current gap of $49,375 that has narrowed from 2011 to 2024. The labor-force participation rate is 76.9%, which is much higher than the national rate (63.5%). The unemployment rate is 22.5%, which is considerably above the national rate (5.2%). The largest occupation group is Sales (41.9%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$14,643$18,125$21,875$31,250$26,563$21,875$35,625$43,125$41,250$46,875$51,250$58,750$64,028$80,000
Median Family Income$34,583$33,750$32,917$56,250$0$35,625$41,250$50,625$51,875$55,625$53,750$61,042$64,236$92,083
Median NonFamily Income$13,750$15,833$14,583$20,625$23,750$14,375$18,125$17,500$16,250$15,000$0$45,625$47,917$48,750
Median Male Income$31,250$31,875$31,750$34,167$50,000$0$55,625$58,750$0$0$38,750$0$0$0
Median Female Income$30,000$31,250$26,250$26,875$26,250$26,250$26,250$31,250$31,250$41,875$41,563$48,333$60,833$49,375
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:3159.62%
Unemployed:917.31%
Not In Labor Force:1223.08%
Total:52100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:1135.48%
Service:619.35%
Sales and Office:1341.94%
Natural resources, construction, and maintenance:00.00%
Production, transportation, and material moving:13.23%
Total Civilian Employed Population:31100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $0, which is much lower than the national median ($332,700), is down $55,000 (100.00%) since 2011 and below its 2019 pre-pandemic level by $43,800. The median gross rent is $0, which is well under the national median ($1,413), is down $583 (100.00%) since 2011 and below its 2019 pre-pandemic level by $1,063. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$55,000$87,500$115,600$150,000$0$66,700$55,000$52,500$43,800$38,800$34,500$43,800$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:00.00%
$1,000 to $1,499:00.00%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:8100.00%
Total:8100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$583$656$0$0$0$0$1,125$1,125$1,063$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):310.00%
Owner Occupied (free and clear, no mortgage):1963.33%
Renter Occupied:826.67%
Total Occupied Housing Units:30100%

Occupied Housing Units:3053.57%
Vacant Housing Units (not graphed):2646.43%
Total Housing Units:56100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:56100.00%
Multi-Family Units:00.00%
Other Units:00.00%
Total Housing Units:56100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 0.00% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.70%). High school or higher is 85.70%, which is comparable to the national rate (89.60%). The uninsured rate is 29.10%, which is far higher than the national rate (8.40%). Private coverage is 12.70%, which is far lower than the national rate (67.10%). Public coverage is 67.10%, which is far higher than the national rate (36.70%). The share of people in poverty is 23.50%, which is comparable to the national rate (8.80%), down 24.70 percentage points since 2011 and below its 2019 pre-pandemic level by 1.90 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (57.14%). College enrollment is 21.43%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:614.29%
9th to 12th grade, no diploma:00.00%
High school graduate (includes equivalency):2047.62%
Some college, no degree:1228.57%
Associate's degree:49.52%
Bachelor's degree:00.00%
Graduate or professional degree:00.00%
Total:42100%
High school or higher:3685.71%
Bachelor's degree or higher:00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:1011.63%
Public Insurance:5361.63%
No Insurance:2326.74%
Total:86100%
Has Health Insurance:6373.26%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty33.3%36.8%39.1%19.0%23.5%26.7%12.5%5.3%10.5%5.3%22.7%26.3%8.6%23.5%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:27.14%
Elementary school (grades 1-8):1657.14%
High school (grades 9-12):414.29%
College or graduate school:621.43%
Total:28100%
Early Childhood:27.14%
K-12 (Primary & Secondary School):2278.57%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 99558 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 7 people with an annual payroll of $115,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:5Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:3Source: CBP
1st Quarter Payroll:$22,000Source: CBP
Annual Payroll:$115,000Source: CBP
# of Employees:7Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 99558 is located in Yukon Koyukuk Borough, Alaska, within the Metropolitan Statistical Area (CBSA ) and Alaska's 0th Congressional District. This area has a population of 0 people, about 0.00% of whom live in ZIP Code 99558. It covers 9.588 sq mi of land and a water area of 2.339 sq mi.

CBSA Name:--Source: Census
CBSA Number:--Source: Census
CBSA Type:--Source: Census
CBSA Division:--Source: Census
CBSA Population:0Source: Census
MSA:Source: Census
Land Area:9.588 sq miSource: Census
Water Area:2.339 sq miSource: Census
Congressional District:00Source: USPS
Congressional Land Area:571951.26 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:0203880Source: Census
Place Name:Anvik city; AlaskaSource: Census

Adjacent & Nearby ZIP Codes


99559 | | 99557

Schools in ZIP Code 99558


ZIP Code 99558 is in the Iditarod Area School District, which serves grades Pre-Kindergarten thru 12th. There are 1 public school(s) in this ZIP Code, and we have located 0 private school(s).

Blackwell School 1 School Dr
Anvik, AK 99558
District: Iditarod Area School District

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov