| City: | Dillingham, Alaska |
| City Alias: | Koliganek, Twin Hills |
| Borough: | Dillingham Borough |
| Timezone: | Alaska (GMT -09:00) |
| Local Time: | 9:22:28 AM |
| Population: | 2,647 [See All] |
| Area Code: | 907 |
| Classification: | PO Box |
| Coordinates: | 60.0903, -158.4268 |
| Land Area: | 11432.584 sq mi |
| Quick Link: |
Dillingham sits at the edge of Bristol Bay in southwest Alaska, serving as the regional hub for one of the world's most productive salmon fisheries. This ZIP covers 8,123 square miles of tundra, river valleys, and remote villages, stretching from Dillingham itself to outlying communities like Twin Hills and Koliganek. It's a PO Box Only Zone. There's no alternative mail delivery across this vast territory.
The Dillingham post office maintains 1,021 PO Boxes for 935 occupied homes, an adoption rate of 109%. That's because this post office serves not just Dillingham but surrounding villages and seasonal fishing workers. Twin Hills and Koliganek, both recognized as valid mailing addresses for this ZIP, have Community Post Offices that connect to the main Dillingham facility. Residents from across the region travel to pick up mail, packages, and supplies.
Of the 2,647 residents, 57% are Alaska Native (primarily Yup'ik), 25% are White, and 14% identify as two or more races. Median age is 32.9 years. The economy runs on commercial fishing, fish processing, and regional government services. During Bristol Bay's legendary salmon runs, the population swells with seasonal workers. That's visible in the housing numbers: 23% of the 1,400 housing units are seasonal or vacant, used by fishermen and processors who work here only during summer.
With a median household income of $94,519, Dillingham benefits from high-paying fishing industry jobs. Transportation workers make up 29% of the workforce (DP03_0047E: 689 of approximately 2,370 workers), which includes commercial fishing boat crews. Public administration employs another 18% (430 workers), supporting regional government and tribal services. The rural carrier routes (2 distinct routes) serve scattered residential areas, but most mail goes to PO Boxes because of the region's infrastructure limitations and transient fishing population.
Street names tell the story of this place. Kanakanak Road leads to the regional health clinic. Nerka Loop takes its name from the Yup'ik word for sockeye salmon. Koliganek Road connects to the upriver village. Blueberry Street and Diamond Willow Road reference the tundra vegetation. Only 17 of the 54 ZIP+4 records are street addresses; the rest (36 records) are PO Box ranges. That's because Dillingham's layout, seasonal population, and role as a regional service point make PO Boxes the only practical solution for reliable mail delivery.
All mail must use PO Box addresses. The primary city name is DILLINGHAM, but TWIN HILLS and KOLIGANEK are also valid for their respective communities within this ZIP. Format: PO Box [number], Dillingham, AK 99576.
Street names blend Yup'ik language (Nerka for sockeye salmon), regional landmarks (Kanakanak health clinic), and natural features (Blueberry, Diamond Willow).
ZIP Code 99576 has 2,647 residents and 935 households (average 2.76 persons per household). The median age is 32.9 years, slightly younger than the state (35.6) and younger than the nation (38.8). The gender split is 50.8% male and 49.2% female, which is slightly higher than the national male share (49.1%), making this a male-majority area. Largest groups are American Indian & Alaska Native (57.5%, much higher than the state average of 15.2% and well above the national average of 1.1%) and White (24.9%, much lower than the state average of 59.4% and well below the national average of 61.6%); Hispanic or Latino residents make up 4.3%, 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
| 2020 Population: | 2,647Source: Census DHC |
| 2024 ACS Population Estimate: | 2,454Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 0.2 people per sq mile |
| Average Income: | $99,125Source: Census ACS |
| Households: | 935Source: Census DHC |
| Average House Value: | $288,400Source: Census ACS |
| Persons Per Household: | 2.76Source: Census DHC |
| Average Family Size: | 3.39Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 2,535 | 2,471 | 2,400 | 2,445 | 2,464 | 2,467 | 2,427 | 2,494 | 2,499 | 2,384 | 2,536 | 2,577 | 2,464 | 2,454 |
| Decennial Census | 2,603 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2,647 | -- | -- | -- | -- |
Median Age: 32.9
Male Median Age: 33.7
Female Median Age: 32.3
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 91 | 104 | 127 | 87 | 73 | 88 | 122 | 91 | 73 | 61 | 87 | 101 | 99 | 63 | 32 | 21 | 17 | 7 |
| Female | 112 | 125 | 106 | 77 | 84 | 87 | 114 | 88 | 63 | 60 | 58 | 105 | 82 | 62 | 38 | 27 | 6 | 9 |
| Total | 203 | 229 | 233 | 164 | 157 | 175 | 236 | 179 | 136 | 121 | 145 | 206 | 181 | 125 | 70 | 48 | 23 | 16 |
| White: | 660 | 27.57% |
| Black: | 22 | 0.92% |
| Hispanic:* | 114 | 4.76% |
| Asian: | 44 | 1.84% |
| American Indian: | 1,521 | 63.53% |
| Hawaiian: | 9 | 0.38% |
| Other: | 24 | 1.00% |
| Total: | 2,394 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 1,344 | 50.77% | 33.7 years |
| Females: | 1,303 | 49.23% | 32.3 years |
| Total: | 2,647 | 100% | 32.9 years |
| Native, born in the United States: | 2,302 | 93.81% |
| Native, born in PR, Island Areas, or abroad: | 4 | 0.16% |
| Foreign born, naturalized U.S. citizen: | 23 | 0.94% |
| Foreign born, not a U.S. citizen: | 125 | 6.03% |
| Total Population: | 2,454 | 100% |
| Total Native Population: | 2,306 | 93.97% |
| Total Foreign-born Population: | 148 | 6.03% |
In 2024, the Median household income is $99,125, which is much higher than the national median ($80,734), is up $32,175 (48.1%) since 2011 and above its 2019 pre-pandemic level by $25,673. Family households earn a median of $109,063 versus $65,556 for nonfamily households (a difference of $43,507). By gender, male median income is $56,667 and female is $70,781, which is much higher than the national female median ($55,274), with a current gap of $14,114 that has narrowed from 2011 to 2024. The labor-force participation rate is 67.6%, which is above the national rate (63.5%). The unemployment rate is 7.3%, which is considerably above the national rate (5.2%). The largest occupation group is Management (41.3%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $66,950 | $69,630 | $67,981 | $68,077 | $66,250 | $70,677 | $75,563 | $73,500 | $73,452 | $72,857 | $78,698 | $90,543 | $94,519 | $99,125 |
| Median Family Income | $81,042 | $93,125 | $83,750 | $78,500 | $74,904 | $76,944 | $81,705 | $77,386 | $75,417 | $76,250 | $84,750 | $91,645 | $97,303 | $109,063 |
| Median NonFamily Income | $55,000 | $58,000 | $56,250 | $55,357 | $53,359 | $56,625 | $57,750 | $55,625 | $54,063 | $53,750 | $44,583 | $50,250 | $56,250 | $65,556 |
| Median Male Income | $56,509 | $52,679 | $52,875 | $55,000 | $61,172 | $63,571 | $69,659 | $66,667 | $61,429 | $56,350 | $57,771 | $63,049 | $68,000 | $56,667 |
| Median Female Income | $52,417 | $54,400 | $51,890 | $54,453 | $53,900 | $54,570 | $54,286 | $54,500 | $49,737 | $52,400 | $59,050 | $59,539 | $65,208 | $70,781 |
| Employed: | 1,136 | 62.69% |
| Unemployed: | 89 | 4.91% |
| Not In Labor Force: | 587 | 32.40% |
| Total: | 1,812 | 100% |
| Management, business, science, and arts: | 469 | 41.29% |
| Service: | 214 | 18.84% |
| Sales and Office: | 209 | 18.40% |
| Natural resources, construction, and maintenance: | 130 | 11.44% |
| Production, transportation, and material moving: | 114 | 10.04% |
| Total Civilian Employed Population: | 1,136 | 100% |
In 2024, the median home value is $288,400, which is much lower than the national median ($332,700), is up $65,900 (29.62%) since 2011 and above its 2019 pre-pandemic level by $33,800. The median gross rent is $1,223, which is considerably lower than the national median ($1,413), is up $245 (25.05%) since 2011 and above its 2019 pre-pandemic level by $46. Of occupied housing, owners make up 58.86% (41.03% with a mortgage, 58.97% free-and-clear) and renters 41.14% - making this ZIP Code higher than national rental averages. The vacancy rate is 39.37%, which is markedly above the national rate (10.12%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $222,500 | $220,400 | $238,600 | $246,700 | $241,900 | $252,200 | $248,100 | $253,500 | $254,600 | $253,300 | $251,700 | $272,000 | $283,500 | $288,400 |
| Less than $500: | 38 | 11.21% |
| $500 to $999: | 55 | 16.22% |
| $1,000 to $1,499: | 72 | 21.24% |
| $1,500 to $1,999: | 73 | 21.53% |
| $2,000 to $2,499: | 34 | 10.03% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 5 | 1.47% |
| No Rent: | 62 | 18.29% |
| Total: | 339 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $978 | $1,094 | $1,058 | $1,101 | $1,053 | $1,185 | $1,171 | $1,184 | $1,177 | $1,182 | $1,230 | $1,228 | $1,233 | $1,223 |
| Owner Occupied (with mortgage): | 199 | 24.15% |
| Owner Occupied (free and clear, no mortgage): | 286 | 34.71% |
| Renter Occupied: | 339 | 41.14% |
| Total Occupied Housing Units: | 824 | 100% |
| Occupied Housing Units: | 824 | 60.63% |
| Vacant Housing Units (not graphed): | 535 | 39.37% |
| Total Housing Units: | 1,359 | 100% |
| Single-Family Units: | 1,052 | 77.41% |
| Multi-Family Units: | 290 | 21.34% |
| Other Units: | 17 | 1.25% |
| Total Housing Units: | 1,359 | 100% |
In 2024, 23.20% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.70%). High school or higher is 93.00%, which is well above the national rate (89.60%). The uninsured rate is 15.60%, which is comparable to the national rate (8.40%). The share of people in poverty is 10.60%, which is comparable to the national rate (8.80%), up 2.10 percentage points since 2011 and above its 2019 pre-pandemic level by 1.40 percentage points. This points to rising hardship - a weaker consumer base, greater strain on public services, and job-market headwinds. Among residents ages 3+, the largest enrollment group is elementary (49.93%). College enrollment is 10.49%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 27 | 1.75% |
| 9th to 12th grade, no diploma: | 81 | 5.25% |
| High school graduate (includes equivalency): | 605 | 39.21% |
| Some college, no degree: | 301 | 19.51% |
| Associate's degree: | 171 | 11.08% |
| Bachelor's degree: | 234 | 15.17% |
| Graduate or professional degree: | 124 | 8.04% |
| Total: | 1,543 | 100% |
| High school or higher: | 1,435 | 93.00% |
| Bachelor's degree or higher: | 358 | 23.20% |
| Private Insurance: | 1,345 | 49.12% |
| Public Insurance: | 1,013 | 37.00% |
| No Insurance: | 380 | 13.88% |
| Total: | 2,738 | 100% |
| Has Health Insurance: | 2,358 | 86.12% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 9.1% | 6.5% | 8.4% | 9.3% | 10.2% | 7.2% | 6.9% | 9.5% | 9.8% | 10.1% | 12.8% | 12.4% | 11.2% | 10.6% |
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.
| Nursery School, Preschool: | 40 | 6.00% |
| Kindergarten: | 32 | 4.80% |
| Elementary school (grades 1-8): | 333 | 49.93% |
| High school (grades 9-12): | 192 | 28.79% |
| College or graduate school: | 70 | 10.49% |
| Total: | 667 | 100% |
| Early Childhood: | 72 | 10.79% |
| K-12 (Primary & Secondary School): | 557 | 83.51% |
ZIP Code 99576 supports both business and residential activity. According to the Business Census (2024), there are 94 business establishments, employing about 1,065 people with an annual payroll of $107,691,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,141Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 94Source: CBP |
| 1st Quarter Payroll: | $21,878,000Source: CBP |
| Annual Payroll: | $107,691,000Source: CBP |
| # of Employees: | 1,065Source: CBP |
ZIP Code 99576 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 99576. It covers 11432.584 sq mi of land and a water area of 519.042 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: | 11432.584 sq miSource: Census |
| Water Area: | 519.042 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: | 0218950Source: Census |
| Place Name: | Dillingham city; AlaskaSource: Census |
ZIP Code 99576 is part of 2 school districts, including: Dillingham City School District (Grades PK thru 12) and Southwest Region School District (Grades Pre-Kindergarten thru 12th). There are 4 public school(s) in this ZIP Code, and we have located 1 private school(s).
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.