Rockingham County, New Hampshire Demographics 2026
Rockingham County, New Hampshire has a population of 319,082, the 2nd most populous county in New Hampshire. The median household income is $118,331 and the median home value is $497,500. The poverty rate is 4.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Rockingham County Quick Facts
How Rockingham County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 317,163 | 319,082 | +0.6% |
| Median household income | $113,927 | $118,331 | +3.9% |
| Median home value | $461,400 | $497,500 | +7.8% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 24 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Rockingham County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Portsmouth | 22,545 | $106,219 | 6.8% | $688,500 |
| Derry | 21,339 | $91,673 | 4.3% | $391,200 |
| Londonderry | 12,225 | $119,571 | 2.9% | $469,500 |
| Hampton | 10,101 | $97,163 | 4.0% | $545,300 |
| Exeter | 9,964 | $87,346 | 5.9% | $357,500 |
| Newmarket | 5,679 | $87,196 | 6.9% | $423,500 |
| Raymond | 3,645 | $73,066 | 7.1% | $314,900 |
| Epping | 2,796 | $95,273 | 2.5% | $384,800 |
| Hampton Beach | 2,605 | $82,557 | 8.2% | $508,900 |
| Seabrook Beach | 1,001 | $93,571 | 7.8% | $920,900 |
| Newfields | 294 | $185,769 | 1.0% | $484,100 |
Explore New Hampshire Rankings
Population Overview
Rockingham County is located in New Hampshire with a total population of 319,082. It is the 2nd most populous county out of 10 in New Hampshire. The county encompasses 11 Census-designated places.
Age Demographics
The median age in Rockingham County is 45.0 years. This is 4% higher than the state median of 43.3 years.
Economy, Income & Housing
The median household income in Rockingham County is $118,331. This is 19% higher than the state median of $99,031. It is also 47% higher than the national median of $80,734. The poverty rate stands at 4.8%. This is 34% lower than the state poverty rate of 7.2%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 3.5%. This is 6% higher than the state rate of 3.4%. The median home value is $497,500. Housing costs are 24% higher than the state median of $402,500. The home-value-to-income ratio is 4.2x. 78.5% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 72.8%.
Race & Ethnicity
Rockingham County has a predominantly White (non-Hispanic) population, comprising 89.5% of all residents. Hispanic or Latino residents account for 3.7%. The Black or African American population (0.7%) is well below the state average of 1.3%.
Education
45.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 12% higher than the state rate of 40.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.1%. Notably, 17.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All figures for Rockingham County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against New Hampshire 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.
Frequently Asked Questions
What is the population of Rockingham County, New Hampshire?
Rockingham County has a population of 319,082, making it the 2nd most populous county in New Hampshire.
What is the median income in Rockingham County?
The median household income in Rockingham County is $118,331 with a poverty rate of 4.8%.
How many cities are in Rockingham County, New Hampshire?
Rockingham County contains 11 Census-designated places.