Grafton County, New Hampshire
Located in New Hampshire, Grafton County has a population of 92,120 residents and a median age of 44.1 years, making it the #663 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.4%. The median home value is $344,500, and the median household income is $88,261, which is 17% above the national median.
Demographics
Grafton County has a population of 92,120, making it the #663 most populous county in the US. The median age is 44.1 years, which is 13.4% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Grafton County is $88,261, ranking #344 out of 3,222 counties — 17.4% above the national median. The poverty rate is 10.4% and unemployment stands at 3.2%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Grafton County is $344,500 (+22.2% vs national). Renters pay a median of $1,301/mo and the homeownership rate is 71.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Grafton County, 46.7% of adults age 25+ hold a bachelor's degree or higher, which is 38.6% above the national average, ranking #139 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Grafton County is 80.1 years. 12.7% of adults report poor or fair health and 7.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
12.8% of adults in Grafton County smoke , 28.8% are obese , and 21.6% report excessive drinking. The drug overdose death rate is 20.4 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Grafton County is 1.6 per 100,000 and the suicide rate is 18.0 per 100,000. Motor vehicle deaths occur at a rate of 9.8 per 100,000.
Homicide Rate Trend
Families & Children
9.8% of children in Grafton County live in poverty and the infant mortality rate is 4.1 per 1,000 live births. The teen birth rate is 4.8 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Grafton County is 73.8%. The mean commute time is 24.1 min, which is 12.6% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Grafton County voted Democratic with a margin of 19.9%. The vote was 59.3% Dem / 39.4% Rep. Compared to 2020, the margin shifted 4.7 toward Republicans .
Vote Share Over Time
About Grafton County, New Hampshire
Grafton County, New Hampshire has a total population of 92,120, making it the 663rd most populous county in the United States. The median age in Grafton County is 44.1 years, which is 13.4% above the national median of 38.9 years.
The median household income in Grafton County is $88,261, which ranks #344 of 3,222 counties nationwide. This is 17.4% above the national median of $75,149. The poverty rate is 10.4%, lower than the national rate of 12.6%. The unemployment rate stands at 3.2%.
The median home value in Grafton County is $344,500, 22.2% above the national median. Renters in Grafton County pay a median gross rent of $1,301 per month. The homeownership rate is 71.3%, compared to the national rate of 64.4%.
In Grafton County, 46.7% of residents aged 25 and older hold a bachelor's degree or higher, 38.6% above the national average of 33.7%. Health insurance coverage stands at 94.6% of the population. The average commute time for workers is 24.1 min.
Grafton County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 87.5% of the population, followed by Two or More Races (4.4%) and Asian (non-Hispanic) (3.5%).
All data for Grafton County, New Hampshire comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.