Is New Hampshire's population growing or shrinking?
Refreshed annually
It grew by 6,800 between 2024 and 2025. That’s more than the population of the city of Farmington. Changes in population reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. New Hampshire’s 0.48% annual increase was primarily driven by people moving from other states. In the decade between 2015 and 2025, New Hampshire’s population grew by 5.3%.
+6.82K
population change (2024 to 2025)
+0.48%
percent change in population (2024 to 2025)
Since 2000, New Hampshire's population increased in 25 of 25 years. The largest increase occurred between 2000 and 2001, when it gained 15,600 residents. The state's smallest increase during the 21st century occurred between 2008 and 2009 when it gained 196 residents.
New Hampshire gained 6,800 residents between 2024 and 2025.
Annual population change, 1901–2025
What contributes to population change in New Hampshire?
A state’s population is influenced by three factors:
- Natural population change: If births outnumber deaths in a given year, natural population growth is positive. If deaths exceed births, it is negative. Between 2024 to 2025 natural population change was negative in New Hampshire, with deaths exceeding births by 2,200.
- Immigration: international migration directly into or out of a state. If more people move in than move out, population change from immigration is positive. If more people move out than move in, it’s negative. New Hampshire’s population change from immigration was positive, with about 2,400 more people coming from another country to New Hampshire than leaving.
- Domestic migration, moving between states: New Hampshire’s population change from domestic migration was positive, with about 6,600 more people moving to New Hampshire from other states than leaving.
Between 2024 and 2025, domestic migration was the primary driver of population growth in New Hampshire.
Components of population change, 2011–2025
Which counties in New Hampshire are growing? Which are shrinking?
Among 10 county equivalents, Hillsborough County had the largest population growth in New Hampshire, welcoming 2,973 new residents. Coos County lost the most, with a loss of 34 residents. County-level population data is available as of 2025.
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Hillsborough County led New Hampshire in percent population increase between 2024 and 2025 at 0.69 percent. Coos County ranked last with a 0.11 percent decline.
Between 2024 and 2025, Hillsborough County gained 0.69% in population, the largest increase in New Hampshire.
Population change
How does population change in New Hampshire compare to other states?
Between 2015 and 2025, New Hampshire’s population has increased by 5.3%. During that same period, the US population grew by 6.2%. New Hampshire ranks 23rd among states in population growth over that decade.
New Hampshire ranked 23rd in population growth between 2015 and 2025.
Percent change in population
Population change between 2024 and 2025, by county in New Hampshire
| County | Population change rate | |
|---|---|---|
| 1. | Hillsborough County, NH | +0.69% |
| 2. | Rockingham County, NH | +0.65% |
| 3. | Strafford County, NH | +0.53% |
| 4. | Carroll County, NH | +0.42% |
| 5. | Merrimack County, NH | +0.34% |
| 6. | Grafton County, NH | +0.25% |
| 7. | Cheshire County, NH | +0.13% |
| 8. | Sullivan County, NH | +0.08% |
| 9. | Belknap County, NH | -0.03% |
| 10. | Coos County, NH | -0.11% |
Population change between 2015 and 2025, by state
| State | Population change rate | |
|---|---|---|
| 1. | Idaho | +22% |
| 2. | Utah | +17.9% |
| 3. | Florida | +16.5% |
| 4. | Texas | +15.8% |
| 5. | Nevada | +14.9% |
| 6. | South Carolina | +14.8% |
| 7. | Arizona | +13.7% |
| 8. | North Carolina | +12.4% |
| 9. | Delaware | +12.2% |
| 10. | Washington state | +11.4% |
How is the US population changing?
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
