| Fire department | City | County | Career firefighters | Website |
|---|---|---|---|---|
| Manchester Fire Department | Manchester | Hillsborough | 190 | Official site |
| Nashua Fire Rescue | Nashua | Hillsborough | 172 | Official site |
| Concord Fire Department | Concord | Merrimack | 92 | Official site |
| Salem Fire Department | Salem | Rockingham | 73 | Official site |
| Derry Fire Department | Derry | Rockingham | 70 | Official site |
| Dover Fire & Rescue Service | Dover | Strafford | 65 | Official site |
| Portsmouth Fire Department | Portsmouth | Rockingham | 65 | Official site |
| Merrimack Fire Rescue | Merrimack | Hillsborough | 48 | — |
| Keene Fire Department | Keene | Cheshire | 45 | Official site |
| Hampton Fire Rescue | Hampton | Rockingham | 44 | Official site |
| Portsmouth Naval Shipyard | Portsmouth | Rockingham | 44 | — |
| Londonderry Fire/Rescue | Londonderry | Rockingham | 42 | — |
| Pease Air National Guard | Newington | Rockingham | 42 | — |
| Hudson NH Fire Department | Hudson | Hillsborough | 40 | Official site |
| Laconia Fire Department | Laconia | Belknap | 40 | Official site |
| Rochester Fire Department | Rochester | Strafford | 37 | Official site |
| Bedford Fire Department | Bedford | Hillsborough | 32 | Official site |
| Exeter Fire Department | Exeter | Rockingham | 32 | Official site |
| Hooksett Fire Rescue | Hooksett | Merrimack | 30 | Official site |
| Goffstown Fire Department | Goffstown | Hillsborough | 28 | Official site |
| Lebanon Fire Department | Lebanon | Grafton | 28 | Official site |
| Windham Fire Department | Windham | Rockingham | 27 | Official site |
| Durham Fire Department | Durham | Strafford | 24 | Official site |
| Hanover Fire Department | Hanover | Grafton | 22 | Official site |
| Pelham Fire Department | Pelham | Hillsborough | 22 | Official site |
| Seabrook Fire Department | Seabrook | Rockingham | 22 | Official site |
| Berlin Fire Department | Berlin | Coos | 20 | Official site |
| Claremont Fire Department | Claremont | Sullivan | 18 | Official site |
| Franklin Fire & Emergency Services | Franklin | Merrimack | 18 | Official site |
| Gilford Fire-Rescue | Gilford | Belknap | 18 | — |
| Tilton-Northfield Fire District | Tilton | Belknap | 18 | Official site |
| Belmont Fire Department | Belmont | Belknap | 16 | Official site |
| Somersworth Fire Department | Somersworth | Strafford | 16 | Official site |
| Newington Fire Department | Newington | Rockingham | 14 | Official site |
| North Hampton Fire & Rescue | North Hampton | Rockingham | 14 | Official site |
| Wolfeboro Fire-Rescue Department | Wolfeboro | Carroll | 13 | Official site |
| Littleton Fire Rescue | Littleton | Grafton | 10 | Official site |
| Plymouth Fire Rescue | Plymouth | Grafton | 10 | Official site |
| Rye Fire & Rescue | Rye | Rockingham | 10 | Official site |
| Moultonborough Fire/Rescue Department | Moultonborough | Carroll | 9 | Official site |
| Milford Fire Department | Milford | Hillsborough | 8 | Official site |
| Town of Hollis, Hollis Fire Department | Hollis | Hillsborough | 8 | — |
| Waterville Valley Department of Public Safety | Waterville Valley | Grafton | 8 | Official site |
| Bristol Fire Department | Bristol | Grafton | 7 | Official site |
| Gorham Fire Department | Gorham | Coos | 7 | Official site |
| Newport Fire-Emergency Management Services | Newport | Sullivan | 7 | — |
| Raymond Fire Department | Raymond | Rockingham | 7 | — |
| Alton Fire Department | Alton | Belknap | 6 | Official site |
| Barnstead Fire-Rescue | Center Barnstead | Belknap | 6 | Official site |
| Conway Fire/ Rescue | Conway | Carroll | 6 | — |
| Epsom Fire-Rescue | Epsom | Merrimack | 6 | — |
| Gilmanton Fire Department | Gilmanton Iw | Belknap | 6 | — |
| Loudon Fire Department | Loudon | Merrimack | 6 | — |
| Brentwood Fire Department | Brentwood | Rockingham | 5 | Official site |
| Hopkinton Fire Department | Contoocook | Merrimack | 5 | — |
| Lee Fire & Rescue Department | Lee | Strafford | 5 | Official site |
| Sanbornton Fire & Rescue | Sanbornton | Belknap | 5 | Official site |
| Atkinson Fire Department | Atkinson | Rockingham | 4 | — |
| Auburn Fire Department | Auburn | Rockingham | 4 | Official site |
| Barrington Fire & Rescue | Barrington | Strafford | 4 | — |
| Campton-Thornton Fire Department | Campton | Grafton | 4 | — |
| Farmington Fire Rescue Department | Farmington | Strafford | 4 | Official site |
| Kingston Fire Department | Kingston | Rockingham | 4 | Official site |
| Amherst Fire Department | Amherst | Hillsborough | 3 | Official site |
| Milton Fire-Rescue | Milton | Strafford | 3 | Official site |
| Plaistow (NH) Fire Department | Plaistow | Rockingham | 3 | Official site |
| Town of New Castle, NH Fire Department | New Castle | Rockingham | 3 | Official site |
| Tuftonboro Fire & Rescue | Center Tuftonboro | Carroll | 3 | Official site |
| Center Ossipee Fire Department | Center Ossipee | Carroll | 2 | — |
| Epping Fire Department | Epping | Rockingham | 2 | Official site |
| Greenland Fire Department | Greenland | Rockingham | 2 | — |
| Hampstead Fire Rescue | Hampstead | Rockingham | 2 | — |
| Henniker Fire Department | Henniker | Merrimack | 2 | — |
| Hillsboro Fire Department | Hillsboro | Hillsborough | 2 | Official site |
| Lancaster Fire Department | Lancaster | Coos | 2 | — |
| Litchfield Fire Rescue | Litchfield | Hillsborough | 2 | Official site |
| New London Fire Department | New London | Merrimack | 2 | Official site |
| North Conway Fire Department | North Conway | Carroll | 2 | — |
| Northwood Fire-Rescue | Northwood | Rockingham | 2 | — |
| Nottingham Volunteer Fire Department | Nottingham | Rockingham | 2 | Official site |
| Peterborough Fire & Rescue | Peterborough | Hillsborough | 2 | Official site |
| Rindge Fire Department | Rindge | Cheshire | 2 | — |
| Town of Swanzey Fire Department | Swanzey | Cheshire | 2 | — |
| Twin Mountain Fire Department, Town of Carroll | Twin Mountain | Coos | 2 | — |
| Wakefield Fire Rescue Department | Sanbornville | Carroll | 2 | — |
| Allenstown Fire Department | Allenstown | Merrimack | 1 | Official site |
| Bartlet Fire Department | Glen | Carroll | 1 | — |
| Canterbury Fire Department | Canterbury | Merrimack | 1 | — |
| Chester Fire Department | Chester | Rockingham | 1 | — |
| Hampton Falls Fire Department | Hampton Falls | Rockingham | 1 | Official site |
| Holderness Fire Department | Holderness | Grafton | 1 | — |
| Jaffrey Fire Department | Jaffrey | Cheshire | 1 | Official site |
| Meredith Fire Department | Meredith | Belknap | 1 | Official site |
| Pittsfield Fire Department | Pittsfield | Merrimack | 1 | Official site |
| Sandown Fire and Rescue Department | Sandown | Rockingham | 1 | — |
| Strafford Fire & Rescue | Strafford | Strafford | 1 | — |
| Tamworth Fire and Rescue Department | Tamworth | Carroll | 1 | — |
| Town of Brookline Fire Department | Brookline | Hillsborough | 1 | — |
Largest first by career firefighters, as each employer reports it to its federal registry.
Source: U.S. Fire Administration (FEMA), National Fire Department Registry. Data captured September 30, 2026.