New Hampshire · United States
Portsmouth population
21,530people · latest figure
Portsmouth has a population of 21,530, making it the 2081st largest place we list in United States. It is in New Hampshire.
Portsmouth holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 409 times its size.
21,530
population
#2,081
Portsmouth is in New Hampshire, which has 219 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Edgewater | Florida | 21,566 |
| Allison Park | Pennsylvania | 21,552 |
| Bloomfield | Connecticut | 21,535 |
| Sedalia | Missouri | 21,516 |
| Naples | Florida | 21,512 |
| Greenfield | Indiana | 21,497 |
All places in United States → · New Hampshire →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.