50 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Manchester | 1 | 115,451 | 115,508 | -0.01% | 3,491 | 33.07 | City |
| Manchester city | 2 | 114,888 | 115,508 | -0.25% | 3,474 | 33.07 | City |
| Nashua | 3 | 90,872 | 91,199 | -0.07% | 2,947 | 30.83 | City |
| Nashua city | 4 | 90,343 | 91,199 | -0.36% | 2,930 | 30.83 | City |
| Merrimack town | 5 | 29,580 | 26,835 | 1.14% | 908 | 32.59 | Town |
| Hudson town | 6 | 25,639 | 25,366 | 0.09% | 907 | 28.28 | Town |
| Bedford town | 7 | 23,660 | 23,383 | -0.22% | 722 | 32.78 | Town |
| Goffstown town | 8 | 18,477 | 18,564 | -0.14% | 499 | 37.01 | Town |
| Milford town | 9 | 16,508 | 16,133 | 0.27% | 650 | 25.41 | Town |
| Pelham town | 10 | 14,577 | 14,237 | 0.22% | 553 | 26.34 | Town |
| Amherst town | 11 | 11,843 | 11,752 | -0.15% | 349 | 33.91 | Town |
| Weare town | 12 | 9,189 | 9,083 | -0.04% | 156 | 59.07 | Town |
| Hollis town | 13 | 8,783 | 8,364 | 0.34% | 277 | 31.73 | Town |
| Litchfield town | 14 | 8,480 | 8,473 | -0.14% | 568 | 14.92 | Town |
| Milford | 15 | 8,454 | 8,644 | -0.29% | 1,488 | 5.68 | CDP |
| Hudson | 16 | 6,920 | 7,230 | -0.4% | 2,250 | 3.08 | CDP |
| Peterborough town | 17 | 6,520 | 6,414 | 0.15% | 171 | 38.02 | Town |
| New Boston town | 18 | 6,216 | 6,113 | 0.27% | 145 | 42.81 | Town |
| Hillsborough town | 19 | 5,996 | 5,943 | 0.1% | 137 | 43.70 | Town |
| South Hooksett | 20 | 5,906 | 5,911 | 0.56% | 876 | 6.74 | CDP |
| Brookline town | 21 | 5,813 | 5,646 | 0.35% | 293 | 19.84 | Town |
| New Ipswich town | 22 | 5,434 | 5,209 | 0.65% | 166 | 32.73 | Town |
| Pinardville | 23 | 4,869 | 4,764 | 0.12% | 2,926 | 1.66 | CDP |
| East Merrimack | 24 | 4,755 | 4,786 | 0.81% | 1,408 | 3.38 | CDP |
| Wilton town | 25 | 3,978 | 3,905 | 0.08% | 155 | 25.61 | Town |
| Goffstown | 26 | 2,986 | 2,848 | -0.47% | 943 | 3.17 | CDP |
| Mont Vernon town | 27 | 2,732 | 2,595 | 1.07% | 162 | 16.82 | Town |
| Antrim town | 28 | 2,723 | 2,644 | 0.52% | 76 | 35.70 | Town |
| Peterborough | 29 | 2,033 | 2,704 | -3.37% | 426 | 4.77 | CDP |
| Greenville town | 30 | 1,981 | 1,971 | -0.4% | 288 | 6.88 | Town |
| Deering town | 31 | 1,925 | 1,899 | 0.05% | 63 | 30.59 | Town |
| Hancock town | 32 | 1,752 | 1,729 | 0.06% | 58 | 29.97 | Town |
| Greenfield town | 33 | 1,715 | 1,709 | 0.41% | 65 | 26.21 | Town |
| Lyndeborough town | 34 | 1,697 | 1,699 | -0.18% | 56 | 30.44 | Town |
| Francestown town | 35 | 1,643 | 1,607 | 0.06% | 55 | 29.81 | Town |
| Bennington town | 36 | 1,502 | 1,494 | -0.07% | 132 | 11.36 | Town |
| Hillsborough | 37 | 1,465 | 1,421 | -2.27% | 753 | 1.95 | CDP |
| Mason town | 38 | 1,462 | 1,443 | 0.21% | 61 | 23.93 | Town |
| Temple town | 39 | 1,401 | 1,378 | 0.36% | 63 | 22.25 | Town |
| Wilton | 40 | 1,376 | 1,203 | 1.1% | 653 | 2.11 | CDP |
| Antrim | 41 | 1,301 | 1,364 | -0.46% | 286 | 4.54 | CDP |
| Klondike Corner | 42 | 1,174 | 772 | 7.12% | 347 | 3.39 | CDP |
| Greenville | 43 | 1,049 | 1,011 | -0.38% | 306 | 3.43 | CDP |
| Amherst | 44 | 699 | 656 | 0.72% | 963 | 0.73 | CDP |
| Sharon town | 45 | 348 | 354 | -0.57% | 22 | 15.66 | Town |
| Windsor town | 46 | 271 | 264 | -0.73% | 33 | 8.25 | Town |
| New Boston | 47 | 269 | 105 | 7.17% | 521 | 0.52 | CDP |
| Bennington | 48 | 221 | 265 | -4.74% | 513 | 0.43 | CDP |
| Hancock | 49 | 198 | 231 | 0% | 556 | 0.36 | CDP |
| Francestown | 50 | 161 | 118 | 7.33% | 172 | 0.94 | CDP |
Manchester is the largest city in Hillsborough County, with a population of 115,451.
Francestown is the smallest city in Hillsborough County.
There are 50 cities in Hillsborough County, New Hampshire.