Winter Harbor, Maine Demographics & Population 2026

A note before these figures: with a population of 371, Winter Harbor'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

Winter Harbor is a small community located in Maine, within Hancock County. The total population is 371. It ranks as the 144th most populous out of 155 Census-designated places in Maine.

Age Demographics

The median age in Winter Harbor is 65.5 years. This is 46% higher than the state median of 44.8 years. Only 7.0% of residents are under 18, indicating fewer families with children. 22.9% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Winter Harbor is $86,667. This is 16% higher than the state median of $74,733. It is also 7% higher than the national median of $80,734. The poverty rate stands at 2.2%. This is 80% lower than the state poverty rate of 10.8%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Winter Harbor, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $240,300. Housing costs are 19% lower than the state median of $296,600. With a home-value-to-income ratio of just 2.8x, Winter Harbor is one of the most affordable housing markets in the area. 79.4% of occupied housing units are owner-occupied. This homeownership rate is 7% higher than the state average of 74.3%.

Race & Ethnicity

Winter Harbor has a predominantly White (non-Hispanic) population, comprising 96.8% of all residents. Black or African American residents account for 1.1%.

Education

42.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 16% higher than the state rate of 36.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.1%. Notably, 15.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Winter Harbor, Maine 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 Maine state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 155 Census-designated places in Maine. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.