Old Harbor, AK 99643 ZIP Code Profile

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Old Harbor, AK

ZIP Code 99643: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Old Harbor, AK 99643

  • ZIP Code Type: PO BOX
  • Borough: Kodiak Island Borough
  • Centroid: Latitude 57.415, Longitude -153.532
  • Time Zone: Alaska Time Zone (UTC -9 hours)
  • Observes DST: Yes
  • Businesses Addresses: 11
  • PO Box Addresses: 89
  • 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: May 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

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99643 ZIP Code Map

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Old Harbor, AK 99643 Data & Demographics (As of July 1, 2017)


Total Population 234
Daytime Population: Workers 107
Daytime Population: Residents 138
Total Daytime Population (TDP) 245
Ratio TDP/Total Population1 1.05
Population in Households 227
Population in Familes 185
Population in Group Qrtrs 7
Population Density2 0
Diversity Index3 50


Median Household Income $57,858
Average Household Income $77,080
Per Capita Income $29,129


Total Housing Units 121 (100%)
Owner Occupied HU 62 (51.2%)
Renter Occupied HU 23 (19.0%)
Vacant Housing Units 36 (29.8%)
Median Home Value $84,000
Average Home Value $108,468


Total Households 85
Average Household Size 2.67
Family Households 56
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 race 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.


2010-2017 2017-2022
Population 0.0% -0.17%
Households -0.16% -0.24%
Families -0.48% -0.36%
Median Household Income   2.85%
Per Capita Income   2.19%

Old Harbor, AK 99643 - Peer Comparisons by Rank and Percentile

The table below compares 99643 to the other 232 ZIP Codes in Alaska by rank and percentile using July 1, 2017 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 # 159 32nd
Population Density # 178 20th
Diversity Index # 81 65th
Median Household Income # 79 66th
Per Capita Income # 98 58th

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

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