ZIP Code 99830 in Kake, AK

Data Last Updated: February 1, 2026
City:Kake, Alaska
Borough:Petersburg Borough
Timezone:Alaska (GMT -09:00)
Local Time:9:24:47 AM
Population:545 [See All]
Area Code:907
Classification:PO Box
Coordinates:56.9676, -133.9362
Land Area:268.13 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/99830/zip-code-99830.asp

Download this data |

Download ZIP Boundaries |

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.

99830 Kake, AK - Serving a Tlingit Island Community

ZIP Code 99830, Kake

Tribal
LocationPetersburg County, AK
Area1,494.6 sq mi
Population545
Households188
PO Boxes50 Low Adoption (27%)
Median Age35.5 years
ZIP CreatedBefore Oct 2004
Key Facts
  • This is a PO Box Only Zone and there is no alternative mail delivery across the 1,495 square mile island territory
  • 76% of residents (416 of 545 people) are Alaska Native, making this one of Southeast Alaska's predominantly Tlingit communities
  • The post office maintains 50 PO Boxes for 188 households, with limited rural delivery on just 3 streets
  • Public administration employs 121 workers, dominating the economy through tribal government and federal agencies
  • Only 3 streets exist across 1,495 square miles: Keku Road, Totem Way, and Creek Street
  • Accessible only by boat or floatplane, this remote island community relies on the post office as a vital supply connection

Community Overview

Kake sits on the northwest coast of Kupreanof Island in Southeast Alaska's Inside Passage, accessible only by boat or floatplane. This Tlingit community of 545 residents spans 1,495 square miles of rugged coastal territory in Petersburg Census Area. It's a PO Box Only Zone. No alternative mail delivery exists across this vast island and marine territory.

Population and Demographics

Of the 545 residents, 76% are Alaska Native (416 people), making Kake one of Southeast Alaska's predominantly Tlingit communities. The median age is 35.5 years, with multi-generational households common. The population-to-household ratio of 2.9 indicates family structures typical of Alaska Native communities, with 188 occupied homes serving the local population.

Why PO Boxes Are Essential

The Kake post office maintains 50 PO Boxes, with an adoption rate of 26.6% relative to local households. Not everyone needs a box. Limited rural carrier delivery serves some residents on Keku Road, Totem Way, and Creek Street, but the vast majority of the service area has no street addressing infrastructure. For most residents, the post office is the only mail access point.

Economic Context

Public administration employs 121 workers, making it the dominant sector. This includes tribal government, federal agencies, and local administration. With only 20 business establishments and 79 total employees, government and subsistence activities form the economic foundation. Median household income of $50,833 aligns with rural Alaska communities.

Geographic Context

The ZIP+4 records show only 3 streets across the entire 1,495 square miles: Keku Road (2 delivery points), Totem Way (1 point), and Creek Street (1 point). There are no secondary units, no apartment buildings, and minimal commercial development. Street names tell the story of Tlingit heritage and island geography. Most addresses in Kake use PO Boxes rather than physical street locations.

Postal History

Kake has been served by this ZIP code since before tracking began in October 2004. With no city carrier delivery indicator and classification as a Post Office (facility code P), this is a true PO Box community where the post office serves as a vital connection point for receiving mail, packages, government documents, and supplies that arrive by air or sea.

Street Name Patterns

Indigenous Names Minimal Infrastructure

Only 3 streets exist across the entire 1,495 square mile territory, with names honoring Tlingit heritage and natural features.

Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 99830 has 545 residents and 188 households (average 2.89 persons per household). The median age is 35.5 years, about the same as the state (35.6) and younger than the nation (38.8). The gender split is 53.8% male and 46.2% female, which is higher than the national male share (49.1%), making this a male-majority area. Largest groups are American Indian & Alaska Native (76.3%, much higher than the state average of 15.2% and well above the national average of 1.1%) and White (11.9%, much lower than the state average of 59.4% and well below the national average of 61.6%); Hispanic or Latino residents make up 1.5%, 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:545Source: Census DHC
2024 ACS Population Estimate:629Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:2.0 people per sq mile
Average Income:$52,159Source: Census ACS
Households:188Source: Census DHC
Average House Value:$124,600Source: Census ACS
Persons Per Household:2.89Source: Census DHC
Average Family Size:3.16Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--470413487592628644635595585509447473598629
Decennial Census561------------------545--------
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: 35.5

Male Median Age: 37.9

Female Median Age: 33.8

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male27171926315281724151419191913477
Female3024161361926119131715121412942
Total5741353993454283328313431332513119
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:6513.03%
Black:20.40%
Hispanic:*81.60%
Asian:30.60%
American Indian:41683.37%
Hawaiian:20.40%
Other:30.60%
Total:499100%
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:29353.76%37.9 years
Females:25246.24%33.8 years
Total:545100%35.5 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:61998.41%
Native, born in PR, Island Areas, or abroad:00.00%
Foreign born, naturalized U.S. citizen:71.11%
Foreign born, not a U.S. citizen:31.59%
Total Population:629100%
Total Native Population:61998.41%
Total Foreign-born Population:101.59%
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 $52,159, which is far less than the national median ($80,734), is up $11,390 (27.9%) since 2011 and below its 2019 pre-pandemic level by $3,258. Family households earn a median of $56,058 versus $36,000 for nonfamily households (a difference of $20,058). By gender, male median income is $49,125 and female is $51,250, which is considerably lower than the national female median ($55,274), with a current gap of $2,125 that has narrowed from 2011 to 2024. The labor-force participation rate is 55.8%, which is markedly below the national rate (63.5%). The unemployment rate is 12.5%, which is markedly higher than the national rate (5.2%). The largest occupation group is Management (38.3%).

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$40,769$36,875$38,750$38,750$40,417$44,250$51,250$53,625$55,417$56,250$64,000$61,250$50,833$52,159
Median Family Income$40,192$40,568$42,188$45,625$47,917$46,250$51,429$44,688$51,250$58,333$70,139$69,375$63,750$56,058
Median NonFamily Income$46,250$24,688$23,250$22,500$21,563$33,125$47,917$59,167$59,500$34,688$0$22,750$22,857$36,000
Median Male Income$35,833$52,250$54,107$53,214$39,688$39,375$40,000$32,344$43,125$40,781$41,429$45,694$49,000$49,125
Median Female Income$34,583$39,167$39,688$38,000$31,250$32,500$37,188$35,417$37,031$41,563$40,000$46,250$53,750$51,250
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:23048.83%
Unemployed:337.01%
Not In Labor Force:20844.16%
Total:471100%
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:8838.26%
Service:2812.17%
Sales and Office:6729.13%
Natural resources, construction, and maintenance:2812.17%
Production, transportation, and material moving:198.26%
Total Civilian Employed Population:230100%
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 $124,600, which is considerably lower than the national median ($332,700), is up $46,200 (58.93%) since 2011 and below its 2019 pre-pandemic level by $19,700. The median gross rent is $1,016, which is much lower than the national median ($1,413), is up $635 (166.67%) since 2011 and above its 2019 pre-pandemic level by $91. Of occupied housing, owners make up 65.15% (21.02% with a mortgage, 78.98% free-and-clear) and renters 34.85% - making this ZIP Code higher than national rental averages. The vacancy rate is 26.07%, which is considerably higher than the national rate (10.12%).

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$78,400$86,800$110,400$103,700$137,500$144,600$140,600$145,300$144,300$147,900$169,300$171,900$158,300$124,600
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:55.95%
$500 to $999:2327.38%
$1,000 to $1,499:2327.38%
$1,500 to $1,999:44.76%
$2,000 to $2,499:33.57%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:2630.95%
Total:84100%
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$381$398$413$431$869$850$938$930$925$833$817$925$958$1,016
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):3313.69%
Owner Occupied (free and clear, no mortgage):12451.45%
Renter Occupied:8434.85%
Total Occupied Housing Units:241100%

Occupied Housing Units:24173.93%
Vacant Housing Units (not graphed):8526.07%
Total Housing Units:326100%
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:25377.61%
Multi-Family Units:278.28%
Other Units:4614.11%
Total Housing Units:326100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 14.50% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 94.80%, which is far higher than the national rate (89.60%). The uninsured rate is 22.90%, which is far higher than the national rate (8.40%). Private coverage is 32.60%, which is far lower than the national rate (67.10%). Public coverage is 55.50%, which is far higher than the national rate (36.70%). The share of people in poverty is 15.40%, which is comparable to the national rate (8.80%), down 3.40 percentage points since 2011 and below its 2019 pre-pandemic level by 0.60 percentage points. This suggests a positive shift in the local economic and social landscape - higher incomes, steadier consumer demand, and a strengthening tax base. Among residents ages 3+, the largest enrollment group is elementary (46.31%). College enrollment is 12.08%, 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

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:10.25%
9th to 12th grade, no diploma:204.93%
High school graduate (includes equivalency):19648.28%
Some college, no degree:11428.08%
Associate's degree:163.94%
Bachelor's degree:368.87%
Graduate or professional degree:235.67%
Total:406100%
High school or higher:38594.83%
Bachelor's degree or higher:5914.53%
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:20529.37%
Public Insurance:34950.00%
No Insurance:14420.63%
Total:698100%
Has Health Insurance:55479.37%
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 Poverty13.7%21.8%23.1%15.7%14.3%11.8%10.0%7.8%10.9%11.7%13.6%8.9%10.3%15.4%
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:85.37%
Kindergarten:106.71%
Elementary school (grades 1-8):6946.31%
High school (grades 9-12):4429.53%
College or graduate school:1812.08%
Total:149100%
Early Childhood:1812.08%
K-12 (Primary & Secondary School):12382.55%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 99830 supports both business and residential activity. According to the Business Census (2024), there are 21 business establishments, employing about 82 people with an annual payroll of $3,208,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:51Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:21Source: CBP
1st Quarter Payroll:$710,000Source: CBP
Annual Payroll:$3,208,000Source: CBP
# of Employees:82Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 99830 is located in Petersburg 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 99830. It covers 268.13 sq mi of land and a water area of 142.095 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:268.13 sq miSource: Census
Water Area:142.095 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:0236770Source: Census
Place Name:Kake city; AlaskaSource: Census

Adjacent & Nearby ZIP Codes


99832 | | 99829

Schools in ZIP Code 99830


ZIP Code 99830 is in the Kake City 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). It also has 1 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Kake Elementary & High School 175 Library Place
Kake, AK 99830
District: Kake City School District
Juneau Montessori School 750 Saint Anns Ave
Douglas, AK 99824
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 99830


University Of Alaska Southeast 11066 Auke Lake Way
Juneau, AK 99801-8697
Type: Post Secondary

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