| Name | Merrimack County |
| State | New Hampshire |
| FIPS Code | 33013 |
| County Seat | Concord |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 157,059 |
| Population Growth Rate(2020-2024) | 2.07% |
| Majority Ethnicity | White 93.77% |
| Public School Majority Ethnicity | White 88% |
| Partisan Voting Index | Democratic:+3 |
| Unemployment Rate (May 2026) | 2.9% |
| Sales Tax Rate (2025) | 0% |
| Area Code(s) | 603 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 93.77% |
| African American | 1.64% |
| Hispanic | 2.7% |
| Asian | 1.66% |
| Native American | 0.2% |
| Hawaiin/Pacific Islander | 0.03% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 88.41% |
| African American | 2.95% |
| Hispanic | 3.15% |
| Asian | 2.17% |
| Native American | 0.3% |
| Hawaiin/Pacific Islander | 0.05% |