| Fire department | City | County | Career firefighters | Website |
|---|---|---|---|---|
| Milwaukee Fire Department | Milwaukee | Milwaukee | 950 | Official site |
| Madison Fire Department | Madison | Dane | 393 | Official site |
| Green Bay Metro Fire Department | Green Bay | Brown | 195 | Official site |
| City of Kenosha Fire Department | Kenosha | Kenosha | 151 | — |
| Racine Fire Department | Racine | Racine | 141 | Official site |
| Oshkosh Fire Department | Oshkosh | Winnebago | 112 | — |
| Wauwatosa Fire Department | Wauwatosa | Milwaukee | 111 | Official site |
| West Allis Fire Department | West Allis | Milwaukee | 105 | Official site |
| North Shore Fire Department | Brown Deer | Milwaukee | 102 | Official site |
| City of Waukesha Fire Department | Waukesha | Waukesha | 100 | Official site |
| La Crosse Fire Department | La Crosse | La Crosse | 95 | Official site |
| Appleton Fire Department | Appleton | Outagamie | 92 | — |
| Janesville Fire Department | Janesville | Rock | 91 | Official site |
| Eau Claire Fire Rescue | Eau Claire | Eau Claire | 90 | Official site |
| Sheboygan Fire Department | Sheboygan | Sheboygan | 72 | — |
| South Shore Fire Department | Mount Pleasant | Racine | 66 | Official site |
| Fond du Lac Fire & Rescue | Fond Du Lac | Fond du Lac | 65 | Official site |
| City of Beloit Fire Department | Beloit | Rock | 62 | Official site |
| City of Wausau Fire Department | Wausau | Marathon | 60 | Official site |
| City of Brookfield Fire Department | Brookfield | Waukesha | 58 | Official site |
| Manitowoc Fire Rescue Department | Manitowoc | Manitowoc | 54 | — |
| Truax Field/Dane County Regional Airport Fire Department | Madison | Dane | 54 | — |
| City of Oak Creek Fire Department | Oak Creek | Milwaukee | 53 | Official site |
| Greenfield Fire Department | Greenfield | Milwaukee | 52 | Official site |
| Ashwaubenon Public Safety | Ashwaubenon | Brown | 50 | Official site |
| City of Franklin Fire Department | Franklin | Milwaukee | 44 | — |
| City Of Neenah Fire Department | Neenah | Winnebago | 43 | Official site |
| Stevens Point Fire Department | Stevens Point | Portage | 41 | Official site |
| Caledonia Fire Department | Caledonia | Racine | 40 | Official site |
| Marshfield Fire and Rescue Department | Marshfield | Wood | 40 | Official site |
| Superior Fire Department | Superior | Douglas | 40 | Official site |
| Town of Brookfield Fire Department | Brookfield | Waukesha | 40 | Official site |
| West Bend Fire Department | West Bend | Washington | 40 | Official site |
| Wisconsin Rapids Fire Department | Wisconsin Rapids | Wood | 35 | Official site |
| Fort McCoy Fire Department | Fort Mccoy | Monroe | 33 | — |
| Cushing Fire Department | Cushing | Polk | 32 | — |
| City of Menasha Fire Department | Menasha | Winnebago | 29 | — |
| De Pere Fire Rescue | De Pere | Brown | 28 | Official site |
| Menomonie Fire Department | Menomonie | Dunn | 28 | Official site |
| New Berlin Fire Department | New Berlin | Waukesha | 27 | Official site |
| Pleasant Prairie Fire & Rescue Department | Pleasant Prairie | Kenosha | 27 | Official site |
| Chippewa Falls Fire & Emergency Services Department | Chippewa Falls | Chippewa | 26 | Official site |
| Watertown Fire Department | Watertown | Jefferson | 26 | Official site |
| Ashland Fire Department | Ashland | Ashland | 25 | Official site |
| Cudahy Fire Department | Cudahy | Milwaukee | 25 | — |
| Mitchell International Airport Fire Department | Milwaukee | Milwaukee | 25 | — |
| South Milwaukee Fire Department | South Milwaukee | Milwaukee | 25 | Official site |
| Baraboo Area Fire and EMS District | Baraboo | Sauk | 23 | Official site |
| City of Merrill Fire Department | Merrill | Lincoln | 23 | Official site |
| Grand Chute Fire Department | Grand Chute | Outagamie | 23 | Official site |
| Beaver Dam Fire & Rescue Department | Beaver Dam | Dodge | 20 | Official site |
| City of Rhinelander Fire & Rescue Department | Rhinelander | Oneida | 20 | Official site |
| Greendale Fire Department | Greendale | Milwaukee | 20 | Official site |
| Kaukauna Fire Department | Kaukauna | Outagamie | 20 | Official site |
| Pewaukee Fire Department | Waukesha | Waukesha | 20 | Official site |
| City of Antigo Fire Department | Antigo | Langlade | 19 | Official site |
| Western Lakes Fire District | Oconomowoc | Waukesha | 19 | Official site |
| Two Rivers Fire Department | Two Rivers | Manitowoc | 18 | Official site |
| City of Saint Francis Fire Department | Saint Francis | Milwaukee | 16 | — |
| Marinette Fire Department | Marinette | Marinette | 16 | Official site |
| Germantown Fire Department | Germantown | Washington | 15 | Official site |
| Menomonee Falls Fire Department | Menomonee Falls | Waukesha | 15 | Official site |
| City of Onalaska Fire Department | Onalaska | La Crosse | 14 | Official site |
| City of Sturgeon Bay Fire Department | Sturgeon Bay | Door | 13 | — |
| Elkhorn Area Fire Department | Elkhorn | Walworth | 13 | — |
| Rice Lake Fire Department | Rice Lake | Barron | 13 | — |
| Richfield Fire Department | Hubertus | Washington | 13 | Official site |
| South Area Fire & Emergency Response District | Wausau | Marathon | 12 | Official site |
| Southern Ozaukee Fire and Emergency Medical Services Department | Mequon | Ozaukee | 12 | — |
| City of Fitchburg Fire Department | Fitchburg | Dane | 11 | Official site |
| Bellevue Fire Department | Bellevue | Brown | 10 | Official site |
| City of Monona Fire Department | Monona | Dane | 10 | — |
| Lake Country Fire and Rescue | Delafield | Waukesha | 10 | Official site |
| Somers Fire & Rescue | Kenosha | Kenosha | 10 | — |
| Town of Beloit Fire Department | Beloit | Rock | 10 | — |
| Volk Field Combat Readiness Training Center Fire Department | Camp Douglas | Juneau | 10 | — |
| WI Veterans Home-King Fire Department | King | Waupaca | 10 | — |
| Madison Town Fire Department | Madison | Dane | 9 | Official site |
| Village of Plover/EMS Fire Department | Plover | Portage | 9 | Official site |
| Chippewa Fire District | Chippewa Falls | Chippewa | 8 | Official site |
| Ferryville Fire Department | Ferryville | Crawford | 8 | — |
| Mount Horeb Area Joint Fire Department | Mount Horeb | Dane | 8 | Official site |
| Oconto Fire & Rescue | Oconto | Oconto | 8 | — |
| Mukwonago Fire Department | Mukwonago | Waukesha | 7 | Official site |
| Oregon Area Fire-EMS District | Oregon | Dane | 7 | Official site |
| Town of Salem Fire/Rescue | Trevor | Kenosha | 7 | Official site |
| Village of Howard Fire Department | Green Bay | Brown | 7 | — |
| City of Oconomowoc Fire Department | Oconomowoc | Waukesha | 6 | — |
| Edgerton Fire Protection District | Edgerton | Rock | 6 | Official site |
| North Fond De Lac Fire and EMS Department | North Fond Du Lac | Fond du Lac | 6 | — |
| Portage Fire Department | Portage | Columbia | 6 | — |
| Verona Fire Department | Verona | Dane | 6 | Official site |
| City of Burlington Fire Department | Burlington | Racine | 5 | Official site |
| De Forest Area Fire & EMS | De Forest | Dane | 5 | Official site |
| Fox Crossing Fire Department | Neenah | Winnebago | 5 | Official site |
| Grafton Fire Department | Grafton | Ozaukee | 5 | Official site |
| Bloomfield Genoa City Fire and Rescue | Pell Lake | Walworth | 4 | Official site |
| Bristol Fire Department | Bristol | Kenosha | 4 | — |
| Fort Atkinson Fire Department | Fort Atkinson | Jefferson | 4 | — |
| Hartford Fire and Rescue | Hartford | Washington | 4 | Official site |
| Holmen Area Fire Department | Holmen | La Crosse | 4 | — |
| Town of Round Lake Fire | Hayward | Sawyer | 4 | — |
| Greenville Fire and EMS | Greenville | Outagamie | 3 | Official site |
| Hales Corners Fire Department | Hales Corners | Milwaukee | 3 | Official site |
| Jackson Fire Department | Jackson | Washington | 3 | — |
| Lake Geneva Fire Department | Lake Geneva | Walworth | 3 | Official site |
| Lisbon Fire Department | Pewaukee | Waukesha | 3 | Official site |
| Maple Bluff Fire Department | Madison | Dane | 3 | Official site |
| McFarland Fire Department | Mcfarland | Dane | 3 | Official site |
| Mosinee Fire District | Mosinee | Marathon | 3 | — |
| Stoughton Fire Department | Stoughton | Dane | 3 | Official site |
| Vernon Volunteer Fire Department | Big Bend | Waukesha | 3 | — |
| City of Lake Mills Fire Department | Lake Mills | Jefferson | 2 | Official site |
| Eagle Fire Department | Eagle | Waukesha | 2 | — |
| Eagle River Fire Department | Eagle River | Vilas | 2 | Official site |
| Hartland Fire Department | Hartland | Waukesha | 2 | — |
| Lac Courte Oreilles Tribal Fire Department | Hayward | Sawyer | 2 | — |
| Monroe Fire Department | Monroe | Green | 2 | Official site |
| Orfordville Fire Protection District | Orfordville | Rock | 2 | — |
| Owen-Withee-Curtiss Fire District | Owen | Clark | 2 | — |
| Pittsville Fire Department | Pittsville | Wood | 2 | Official site |
| Stone Bank Volunteer Fire Department | Oconomowoc | Waukesha | 2 | Official site |
| Sussex Fire Department | Sussex | Waukesha | 2 | Official site |
| Town of Delafield Fire Department | Delafield | Waukesha | 2 | — |
| Town of Lake Volunteer Fire Department | Porterfield | Marinette | 2 | — |
| Town of Waukesha Fire Department | Waukesha | Waukesha | 2 | — |
| Wales Genesee Fire Department | Wales | Waukesha | 2 | Official site |
| Walworth Fire/Rescue | Walworth | Walworth | 2 | — |
| Waterloo Fire & Rescue | Waterloo | Jefferson | 2 | Official site |
| Waupun Fire Department | Waupun | Fond du Lac | 2 | Official site |
| Altoona Fire Department & Rescue | Altoona | Eau Claire | 1 | — |
| Black River Falls Fire Department | Black River Falls | Jackson | 1 | — |
| Boyd-Edson-Delmar Rural Fire Department | Boyd | Chippewa | 1 | — |
| City of Ripon Fire Department | Ripon | Fond du Lac | 1 | — |
| Columbus Fire Department | Columbus | Columbia | 1 | Official site |
| Delton Fire Department | Lake Delton | Sauk | 1 | Official site |
| Grand Rapids Volunteer Fire Department | Wisconsin Rapids | Wood | 1 | Official site |
| Johnson Creek Fire & EMS | Johnson Creek | Jefferson | 1 | Official site |
| Kewaskum Fire Department | Kewaskum | Washington | 1 | — |
| Little Chute Fire Department | Little Chute | Outagamie | 1 | — |
| New Richmond Fire Department | New Richmond | Saint Croix | 1 | Official site |
| Palmyra Fire Department | Palmyra | Jefferson | 1 | Official site |
| Platteville Fire Department | Platteville | Grant | 1 | Official site |
| Plymouth Volunteer Fire Department | Plymouth | Sheboygan | 1 | Official site |
| Port Washington Fire Department | Port Washington | Ozaukee | 1 | Official site |
| Prairie du Chien Fire Department | Prairie Du Chien | Crawford | 1 | — |
| River Falls Fire Department | River Falls | Pierce | 1 | Official site |
| Riverside Fire District | Schofield | Marathon | 1 | — |
| Spooner Fire District | Spooner | Washburn | 1 | — |
| Suamico Fire Department | Suamico | Brown | 1 | Official site |
| Town of Rome Fire Department | Nekoosa | Adams | 1 | — |
| Valders Fire Department & Ambulance Service | Valders | Manitowoc | 1 | Official site |
| Viroqua Fire Department | Viroqua | Vernon | 1 | Official site |
| Waunakee Fire Department | Waunakee | Dane | 1 | — |
| Wind Lake Volunteer Fire Company, Inc. | Wind Lake | Racine | 1 | Official site |
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.