| Fire department | City | County | Career firefighters | Website |
|---|---|---|---|---|
| Unified Fire Authority | Salt Lake City | Salt Lake | 424 | Official site |
| Salt Lake City Fire Department | Salt Lake City | Salt Lake | 323 | Official site |
| Odgen Fire Department | Ogden | Weber | 116 | Official site |
| West Valley City Fire Department | West Valley City | Salt Lake | 108 | — |
| Hill Air Force Base Fire & Emergency Services | Hill Afb | Davis | 101 | — |
| South Davis Metro Fire Service Area | Bountiful | Davis | 97 | Official site |
| West Jordan Fire Department | West Jordan | Utah | 89 | Official site |
| Weber Fire District | Farr West | Weber | 86 | Official site |
| Provo Fire Rescue | Provo | Utah | 80 | Official site |
| Sandy City Fire Department | Sandy | Salt Lake | 80 | Official site |
| Park City Fire Service District | Park City | Summit | 78 | Official site |
| Layton City Fire Department | Layton | Davis | 70 | Official site |
| Orem Fire Department | Orem | Utah | 68 | — |
| Murray City Fire Department | Murray | Salt Lake | 64 | Official site |
| South Jordan City Fire Department | South Jordan | Salt Lake | 64 | Official site |
| City of St. George Fire Department | St. George | Washington | 58 | Official site |
| Cache County Fire District | Logan | Cache | 56 | Official site |
| Logan City Fire Department | Logan | Cache | 56 | Official site |
| South Salt Lake City Fire Department | South Salt Lake | Salt Lake | 50 | Official site |
| Midvale City Fire Department | Midvale | Salt Lake | 36 | Official site |
| American Fork Fire & Rescue | American Fork | Utah | 33 | Official site |
| Roy City Fire & Rescue Department | Roy | Weber | 32 | — |
| 151 CES/CEF Utah Air National Guard Fire Department | Salt Lake City | Salt Lake | 29 | — |
| Hurricane Valley Fire SSD | Hurricane | Washington | 29 | Official site |
| Dugway Fire Department/Dugway Proving Ground | Dugway | Tooele | 26 | — |
| Wasatch County Fire District | Heber | Utah | 24 | Official site |
| South Davis Fire District | Woods Cross | Davis | 23 | — |
| North Davis Fire District | West Point | Davis | 20 | — |
| Brigham City Fire Department | Brigham City | Box Elder | 17 | Official site |
| Lehi Fire/EMS Department | Lehi | Utah | 17 | Official site |
| Lone Peak Fire District | Highland | Utah | 17 | Official site |
| Pleasant Grove City Fire Department | Pleasant Grove | Utah | 15 | Official site |
| South Ogden Fire Department | South Ogden | Weber | 14 | Official site |
| Eagle Mountain Fire Rescue | Eagle Mountain | Utah | 13 | — |
| Cedar City Fire Department | Cedar City | Iron | 12 | Official site |
| North Tooele Fire District | Stansbury Park | Tooele | 12 | Official site |
| Clinton City Fire/ Rescue | Clinton | Davis | 11 | Official site |
| Smithfield Fire & Rescue | Smithfield | Utah | 11 | Official site |
| Syracuse Fire Department | Syracuse | Davis | 11 | Official site |
| Kaysville City Fire Department | Kaysville | Davis | 10 | Official site |
| Riverdale Fire Department | Riverdale | Weber | 10 | Official site |
| Washington City Fire Department | Washington | Washington | 10 | Official site |
| North View Fire Agency | North Ogden | Weber | 9 | — |
| Bryce Canyon Fire Department | Bryce Canyon | Garfield | 8 | — |
| Santa Clara-Ivins Fire & Rescue | Santa Clara | Washington | 7 | — |
| Saratoga Springs Fire & Rescue | Saratoga Springs | Utah | 7 | Official site |
| North Logan Fire Department | North Logan | Utah | 5 | Official site |
| Utah County Fire Department | Spanish Fork | Utah | 5 | — |
| Brian Head Fire Department | Brian Head | Iron | 4 | — |
| Farmington City Fire Department | Farmington | Davis | 4 | Official site |
| Dammeron Valley Fire Rescue | Dammeron Valley | Washington | 3 | Official site |
| Moab Valley Fire Protection District | Moab | Grand | 3 | Official site |
| Springville Fire & Rescue | Springville | Utah | 3 | Official site |
| Beryl Fire Department | Beryl | Iron | 2 | — |
| Mapleton Fire Department | Mapleton | Utah | 2 | Official site |
| Washington County Fire Department | Saint George | Washington | 2 | Official site |
| Cedar Mountain Fire Protection District | Duck Creek Village | Kane | 1 | Official site |
| Enterprise Fire Department | Enterprise | Washington | 1 | — |
| Kane County Fire Department | Kanab | Kane | 1 | — |
| Morgan County Fire Department | Morgan | Morgan | 1 | — |
| Nephi Fire Department | Nephi | Juab | 1 | — |
| North Fork Fire Department | Provo | Utah | 1 | — |
| Payson Fire & Rescue | Payson | Utah | 1 | Official site |
| Price City Fire Department | Price | Carbon | 1 | — |
| San Juan County Fire | Monticello | San Juan | 1 | Official site |
| Wendover Airport Fire Department | Wendover | Tooele | 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.