Grafton County, New Hampshire Demographics 2026

Population Overview

Grafton County is located in New Hampshire with a total population of 91,759. It is the 5th most populous county out of 10 in New Hampshire. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Grafton County is 44.0 years. This is 2% higher than the state median of 43.2 years.

Economy, Income & Housing

The median household income in Grafton County is $84,021. This is 12% lower than the state median of $95,628. Compared to the national median of $78,538, household income here is 7% higher. The poverty rate stands at 10.1%. This is 41% higher than the state poverty rate of 7.2%. The unemployment rate is 2.9%. This is 13% lower than the state rate of 3.4%. The median home value is $298,500. Housing costs are 19% lower than the state median of $367,200. The home-value-to-income ratio is 3.6x. 71.0% of occupied housing units are owner-occupied. This homeownership rate is 2% lower than the state average of 72.5%.

Race & Ethnicity

Grafton County has a predominantly White (non-Hispanic) population, comprising 88.1% of all residents. Asian residents account for 3.5%.

Education

44.8% of residents aged 25 and older hold a bachelor's degree or higher. This places Grafton County in the top 10% of all cities in the state for educational attainment. This is 13% higher than the state rate of 39.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.9%. Notably, 23.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.