99836 ZIP Code Profile, Map, Data & Demographics

Related Place Profiles:
Sitka, AK

ZIP Code 99836: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Port Alexander, AK 99836

Acceptable Alternative
Prt Alexander, AK 99836
Sitka, AK 99836

  • ZIP Code Type: PO BOX
  • Borough: Sitka Borough
  • Centroid: Latitude 57.039, Longitude -132.564
  • Time Zone: Alaska Time Zone (UTC -9 hours)
  • Observes DST: Yes
  • Businesses Addresses: 5
  • PO Box Addresses: 10
  • Residential Addresses: 1
    • Multi-Family Addresses: 0
    • Single Family Addresses: 1

The ZIP Code maps and database are updated 4 times per year.
Database updated: April 1, 2024, Maps updated: May 1, 2024.


Port Alexander, AK 99836 Data & Demographics (As of July 1, 2023)


Total Population 73 (100%)
Population in Households 73 (100.0%)
Population in Families 56 (76.7%)
Population in Group Quarters1 0
Population Density 19
Diversity Index2 60


Median Household Income $45,361
Average Household Income $69,817
% of Income for Mortgage4 0%
Per Capita Income $30,605
Wealth Index5 57
Socioeconomic Status Index6 Moderate (51.5)


Total HU (Housing Units) 78 (100%)
Owner Occupied HU 20 (25.6%)
Renter Occupied HU 12 (15.4%)
Vacant Housing Units 46 (59.0%)
Median Home Value $314,286
Average Home Value $396,250
Housing Affordability Index3 0


Total Households 32
Average Household Size 2.28
Family Households 18
Average Family Size 3.00
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.


2020-2023 2023-2028
Population -2.02% -2.00%
Households 2.01% -0.63%
Families   -3.58%
Median Household Income   10.93%
Per Capita Income   2.63%
Owner Occupied HU   4.56%

Port Alexander, AK 99836 - Peer Comparisons by Rank and Percentile

The table below compares 99836 to the other 232 ZIP Codes in Alaska by rank and percentile using July 1, 2023 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 209 11th
Population Density # 41 83rd
Median Household Income # 142 39th
Housing Affordability Index # 20 9th
Per Capita Income # 101 57th
Diversity Index # 50 79th

Additional comparisons and rankings can be made with a VERY EASY TO USE Alaska Census Data Comparison Tool.

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