ZIP Code 99580 in Ekwok, AK

Data Last Updated: March 1, 2026
City:Ekwok, Alaska
Borough:Dillingham Borough
Timezone:Alaska (GMT -09:00)
Local Time:9:22:31 AM
Population:111 [See All]
Area Code:907
Classification:PO Box
Coordinates:59.5289, -157.6535
Land Area:16.844 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/99580/zip-code-99580.asp

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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.

99580 - Ekwok, AK

ZIP Code 99580, Ekwok

Tribal
LocationDillingham County, AK
Area18.0 sq mi
Population111
Households36
PO Boxes39 (108% adoption)
Median Age29.8 years
Seasonal Housing19%
ZIP CreatedBefore Oct 2004
Key Facts
  • This is a true PO Box Only zone where residents have no alternative delivery options beyond picking up mail at the post office.
  • The post office maintains 39 PO Boxes for 36 local households, with the extra boxes serving people from surrounding communities without postal facilities.
  • About 86% of the 111 residents are Native American, making this one of Alaska's predominantly tribal communities.
  • Average household size is 3.08 people, reflecting extended family structures common in Alaska Native communities.
  • The ZIP covers 18 square miles with one rural carrier route, but no doorstep delivery exists anywhere in the area.
  • Only one street name appears in postal records (Postal Way), used for administrative purposes rather than actual mail delivery.

Geographic Isolation and Community Structure

The ZIP covers 18 square miles of Dillingham Census Area, but that modest size masks the real isolation. This is Alaska Native country. Of the 111 residents, 86% identify as Native American, with extended family structures common across the community. The population-to-household ratio of 3.08 reflects those larger, multigenerational households typical of tribal communities in rural Alaska.

Why PO Boxes Are the Only Option

The single street in the postal database—Postal Way—exists for administrative purposes, not actual carrier delivery. One rural route serves the area, but it doesn't bring mail to doorsteps. Instead, residents travel to the post office. For communities scattered across Southwest Alaska's roadless terrain, that PO Box becomes the fixed address that connects them to schools, government agencies, and businesses that require a mailing address.

Living in a PO Box ZIP

With a median household income around $50,833 and a median age of 29.8 years, Ekwok has a young population making do in one of America's most challenging postal environments. The post office isn't just a convenience here. It's essential infrastructure for people living where geography makes traditional street delivery impossible.

Street Name Patterns

Administrative Only

The single street name in postal records—Postal Way—exists purely for administrative purposes. No traditional street delivery network exists in this remote Alaska community.

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Population & Demographics


ZIP Code 99580 has 111 residents and 36 households (average 3.08 persons per household). The median age is 29.8 years, younger than the state (35.6) and significantly younger than the nation (38.8). The gender split is 55.9% male and 44.1% female, which is higher than the national male share (49.1%), making this a male-majority area. Largest groups are American Indian & Alaska Native (85.6%, much higher than the state average of 15.2% and well above the national average of 1.1%) and White (9.0%, much lower than the state average of 59.4% and well below the national average of 61.6%); Hispanic or Latino residents make up 6.3%, 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:111Source: Census DHC
2024 ACS Population Estimate:36Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:6.6 people per sq mile
Average Income:$0Source: Census ACS
Households:36Source: Census DHC
Average House Value:$108,900Source: Census ACS
Persons Per Household:3.08Source: Census DHC
Average Family Size:3.09Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--16111913910078798880786853513536
Decennial Census115------------------111--------
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: 29.8

Male Median Age: 30.5

Female Median Age: 29.5

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male1395310214054526200
Female367054230134551000
Total491658144441881077200
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:108.77%
Black:10.88%
Hispanic:*76.14%
Asian:10.88%
American Indian:9583.33%
Hawaiian:00%
Other:00%
Total:114100%
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:6255.86%30.5 years
Females:4944.14%29.5 years
Total:111100%29.8 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:3288.89%
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:411.11%
Total Population:36100%
Total Native Population:3288.89%
Total Foreign-born Population:411.11%
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 $0, which is well under the national median ($80,734), is down $33,750 (100.0%) since 2011 and below its 2019 pre-pandemic level by $33,000. Family households earn a median of $100,417 versus $0 for nonfamily households (a difference of $100,417). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has widened from 2011 to 2024. The labor-force participation rate is 54.2%, which is markedly below the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Sales (84.6%).

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$33,750$31,667$31,250$22,917$31,875$32,500$28,750$31,875$33,000$32,917$35,500$39,063$50,833$0
Median Family Income$118,438$108,750$55,625$26,250$46,875$56,250$31,250$34,063$34,500$34,375$36,500$48,125$51,250$100,417
Median NonFamily Income$16,250$16,042$19,250$19,063$16,250$23,333$23,333$23,750$25,000$22,083$20,833$23,333$0$0
Median Male Income$44,688$43,750$63,125$33,750$0$0$0$0$0$0$0$0$0$0
Median Female Income$55,417$57,250$56,563$28,750$0$36,250$28,750$35,000$0$0$0$0$0$0
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:1354.17%
Unemployed:00.00%
Not In Labor Force:1145.83%
Total:24100%
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:00.00%
Service:215.38%
Sales and Office:1184.62%
Natural resources, construction, and maintenance:00.00%
Production, transportation, and material moving:00.00%
Total Civilian Employed Population:13100%
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 $108,900, which is considerably lower than the national median ($332,700), is up $18,900 (21.00%) since 2011 and below its 2019 pre-pandemic level by $1,800. The median gross rent is $0, which is well under the national median ($1,413), is down $617 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. 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$90,000$118,800$108,300$115,600$137,500$117,900$112,500$104,200$110,700$95,000$0$0$0$108,900
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00%
$500 to $999:00%
$1,000 to $1,499:00%
$1,500 to $1,999:00%
$2,000 to $2,499:00%
$2,500 to $2,999:00%
$3,000 or more:00%
No Rent:00%
Total:0100%
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$617$0$0$0$0$0$0$0$0$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):430.77%
Owner Occupied (free and clear, no mortgage):969.23%
Renter Occupied:00.00%
Total Occupied Housing Units:13100%

Occupied Housing Units:1348.15%
Vacant Housing Units (not graphed):1451.85%
Total Housing Units:27100%
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:27100.00%
Multi-Family Units:00.00%
Other Units:00.00%
Total Housing Units:27100%
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 57.10%, which is far lower than the national rate (89.60%). The uninsured rate is 33.30%, which is far higher than the national rate (8.40%). Private coverage is 5.60%, which is far lower than the national rate (67.10%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%), down 20.00 percentage points since 2011 and below its 2019 pre-pandemic level by 25.00 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 (60.00%). College enrollment is 0.00%, 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:419.05%
9th to 12th grade, no diploma:523.81%
High school graduate (includes equivalency):733.33%
Some college, no degree:14.76%
Associate's degree:419.05%
Bachelor's degree:00.00%
Graduate or professional degree:00.00%
Total:21100%
High school or higher:1257.14%
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:25.56%
Public Insurance:2261.11%
No Insurance:1233.33%
Total:36100%
Has Health Insurance:2466.67%
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 Poverty20.0%14.8%27.6%30.0%20.0%16.7%33.3%23.5%25.0%23.5%25.0%15.4%0.0%0.0%
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:00.00%
Elementary school (grades 1-8):660.00%
High school (grades 9-12):440.00%
College or graduate school:00.00%
Total:10100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):10100.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 99580 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 22 people with an annual payroll of $4,626,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:42Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:3Source: CBP
1st Quarter Payroll:$2,390,000Source: CBP
Annual Payroll:$4,626,000Source: CBP
# of Employees:22Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 99580 is located in Dillingham 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 99580. It covers 16.844 sq mi of land and a water area of 1.163 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:16.844 sq miSource: Census
Water Area:1.163 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:0221810Source: Census
Place Name:Ekwok city; AlaskaSource: Census

Adjacent & Nearby ZIP Codes


99581 | | 99579

Schools in ZIP Code 99580


ZIP Code 99580 is in the Southwest Region School District, which serves grades Pre-Kindergarten thru 12th. There are 1 public school(s) in this ZIP Code, and we have located 1 private school(s).

William Sonny Nelson School #5 Ekwok School Rd
Ekwok, AK 99580
District: Southwest Region School District
Bristol Bay Christian Learning Center 1317 Lynx Loop
Naknek, AK 99633
District: Private SchoolNearby

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 March 1, 2026.

  1. U.S. Postal Service [Last Updated: 3/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 3/1/2026], 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: 3/1/2026], https://nces.ed.gov