Waldo County, Maine Demographics 2026

Population Overview

Waldo County is located in Maine with a total population of 40,192. It is the 11th most populous county out of 16 in Maine. The county encompasses 4 Census-designated places.

Age Demographics

The median age in Waldo County is 47.4 years. This is 6% higher than the state median of 44.8 years.

Economy, Income & Housing

The median household income in Waldo County is $72,782. This is 3% lower than the state median of $74,733. It is also 10% lower than the national median of $80,734. The poverty rate stands at 12.0%. This is 12% higher than the state poverty rate of 10.8%. The unemployment rate is 3.7%. This is 1% lower than the state rate of 3.8%. The median home value is $257,700. Housing costs are 13% lower than the state median of $296,600. The home-value-to-income ratio is 3.5x. 81.9% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 74.3%.

Race & Ethnicity

Waldo County has a predominantly White (non-Hispanic) population, comprising 92.8% of all residents. Hispanic or Latino residents account for 1.6%. The Black or African American population (0.4%) is well below the state average of 1.8%. The Asian population (0.5%) is well below the state average of 1.1%.

Education

34.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 5% lower 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 93.6%.

Data Sources & Methodology

All figures for Waldo County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Maine and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.