Kupreanof, Alaska Demographics & Population 2026

A note before these figures: with a population of 10, Kupreanof's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Kupreanof is a small community located in Alaska, within Petersburg Borough. The total population is 10. It ranks as the 317th most populous out of 326 Census-designated places in Alaska.

Age Demographics

The median age in Kupreanof is 71.3 years. This is 99% higher than the state median of 35.8 years. 20.0% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The ACS records no residents below the poverty line in Kupreanof. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 50% higher than the state average of 66.8%.

Race & Ethnicity

Every resident counted in Kupreanof was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

90.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Kupreanof in the top 10% of all cities in the state for educational attainment. This is 184% higher than the state rate of 31.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Kupreanof, Alaska is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Alaska state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 326 Census-designated places in Alaska. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.