Statistics for Merrimack County
Latest official figures for Merrimack County, each linked to its source.
Demography
| Population | 158,078 persons | 2025 |
| Median age | 42.9 years | 2024 |
| Live births, July to June | 1,209 count | 2025 |
| Deaths, July to June | 1,620 count | 2025 |
| Crude birth rate, July to June | 7.66 per 1,000 inhabitants | 2025 |
| Crude death rate, July to June | 10.27 per 1,000 inhabitants | 2025 |
Labor market
| Unemployment rate | 2.5 % | 2026-08 |
Income and living conditions
| Poverty rate (US official measure) | 7.5 % | 2024 |
| Median household income | 97,004 USD | 2024 |
Economy
| Gross domestic product (GDP), US dollars | 13,792.3 USD million | 2024 |
| Real GDP growth | 3.2 % | 2024 |