Newcastle CDP, Maine Demographics & Population 2026

Population Overview

Newcastle CDP is a small community located in Maine. The total population is 621. It ranks as the 125th most populous out of 155 cities and towns in Maine.

Age Demographics

The median age in Newcastle CDP is 55.0 years. This is 23% higher than the state median of 44.8 years. Only 7.1% of residents are under 18, indicating fewer families with children. 16.4% 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 Newcastle CDP is $76,389. This is 6% higher than the state median of $71,773. Compared to the national median of $78,538, household income here is 3% lower. The poverty rate stands at 2.9%. This is 73% lower than the state poverty rate of 10.8%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 1.2%. This is 70% lower than the state rate of 3.9%. The median home value is $417,700. Housing costs are 57% higher than the state median of $266,400. The home-value-to-income ratio is 5.5x. 74.8% of occupied housing units are owner-occupied. This homeownership rate is 1% higher than the state average of 74.0%.

Race & Ethnicity

Newcastle CDP has a predominantly White (non-Hispanic) population, comprising 95.2% of all residents. Hispanic or Latino residents account for 1.5%.

Education

37.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% higher than the state rate of 35.3%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.4%. Notably, 20.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Newcastle CDP, Maine is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. 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. For official data, visit data.census.gov.