| Fire department | City | County | Career firefighters | Website |
|---|---|---|---|---|
| Baltimore City Fire Department | Baltimore | Baltimore City | 1,625 | Official site |
| Montgomery County Fire & Rescue Service | Gaithersburg | Montgomery | 1,162 | Official site |
| Baltimore County Fire Department | Towson | Baltimore | 1,052 | Official site |
| Prince George's Fire/EMS Department | Largo | Prince Georges | 1,000 | Official site |
| Anne Arundel County Fire Department | Millersville | Anne Arundel | 817 | Official site |
| Howard County Fire and Rescue | Marriottsville | Howard | 600 | Official site |
| Frederick County Division of Fire and Rescue Services | Frederick | Frederick | 516 | Official site |
| Annapolis Fire Department | Annapolis | Anne Arundel | 135 | Official site |
| City of Salisbury Fire Department | Salisbury | Wicomico | 102 | Official site |
| Ocean City Fire Department | Ocean City | Worcester | 101 | Official site |
| BWI Airport Fire & Rescue Department | Bwi Airport | Anne Arundel | 87 | Official site |
| Hagerstown Fire Department | Hagerstown | Washington | 82 | Official site |
| Department of Public Safety, Fire & Emergency Services | Patuxent River | Saint Marys | 66 | Official site |
| Aberdeen Proving Ground Fire & Emergency Services | Aberdeen Proving Ground | Harford | 60 | — |
| Queen Anne's County Department of Emergency Services | Centreville | Queen Annes | 57 | Official site |
| Bowie Volunteer Fire Department (Prince Georges County Fire Department) | Bowie | Prince Georges | 56 | Official site |
| Cumberland Fire Department | Cumberland | Allegany | 54 | Official site |
| The Joppa Magnolia Volunteer Fire Company, Inc. | Joppa | Harford | 50 | Official site |
| Fort Detrick Fire and Emergency Services | Fort Detrick | Frederick | 47 | — |
| Fort Meade Fire & Emergency Services | Fort Meade | Anne Arundel | 44 | — |
| Allentown Road Volunteer Fire Department (Prince Georges County Fire Department) | Fort Washington | Prince Georges | 43 | Official site |
| Naval District Washington Fire & EMS | Indian Head | Charles | 39 | — |
| Manchester Fire Company # 1 | Manchester | Carroll | 38 | Official site |
| Sykesville Freedom District Fire Department | Sykesville | Carroll | 33 | Official site |
| District Heights Volunteer Fire Department (Prince Georges County Fire Department) | District Heights | Prince Georges | 32 | — |
| Landover Hills Volunteer Fire Department, Inc (Prince Georges County Fire Department) | Hyattsville | Prince Georges | 30 | Official site |
| Martin State Airport Fire Department | Baltimore | Baltimore | 30 | — |
| The Independent Ritchie Volunteer Fire Department (Prince Georges County Fire Department) | Capitol Heights | Prince Georges | 30 | — |
| United Steam Fire Engine Company NO 3 (Frederick County Fire & Rescue) | Frederick | Frederick | 27 | Official site |
| New Market Volunteer Fire Department (Frederick County Fire & Rescue) | New Market | Frederick | 26 | Official site |
| Brandywine Volunteer Fire Department, Inc. (Prince Georges County Fire Department) | Brandywine | Prince Georges | 25 | Official site |
| City of Brooklyn Fire and Rescue | Brooklyn Park | Anne Arundel | 25 | — |
| Baden Volunteer Fire Department (Prince Georges County Fire Department) | Brandywine | Prince Georges | 20 | Official site |
| Brentwood Volunteer Fire Department, Inc. | Brentwood | Prince Georges | 20 | — |
| Jessup Volunteer Fire Department, Inc. (Anne Arundel County Fire Department) | Jessup | Anne Arundel | 20 | — |
| Marydel Volunteer Fire Company | Marydel | Caroline | 20 | Official site |
| Maryland City Volunteer Fire Department and Rescue (Anne Arundel County Fire Department) | Laurel | Anne Arundel | 20 | Official site |
| Mount Airy Volunteer Fire Company | Mount Airy | Carroll | 20 | Official site |
| Preston Volunteer Fire Company | Preston | Caroline | 20 | — |
| Sparrows Point Fire Department (Baltimore County Fire Department) | Baltimore | Baltimore | 20 | — |
| Urbana Volunteer Fire Department & Rescue Squad (Frederick County Fire & Rescue) | Frederick | Frederick | 20 | Official site |
| Chillum Adelphi Volunteer Fire Department (Prince Georges County Fire Department) | Adelphi | Prince Georges | 18 | Official site |
| National Naval Medical Center | Bethesda | Montgomery | 17 | — |
| Berlin Fire Company, Inc. | Berlin | Worcester | 16 | Official site |
| Perry Point Fire Department | Perry Point | Cecil | 16 | — |
| Silver Hill Volunteer Fire Department & Rescue Squad (Prince Georges County Fire Department) | Suitland | Prince Georges | 16 | — |
| Junior Fire Company #2, Inc. (Frederick County Fire & Rescue) | Frederick | Frederick | 15 | Official site |
| Lake Shore Volunteer Fire Company, Inc. (Anne Arundel County Fire Department) | Pasadena | Anne Arundel | 15 | — |
| Volunteer Fire Company of Halfway, Inc. | Hagerstown | Washington | 15 | Official site |
| Westminster Fire Engine and Hose Company NO 1 | Westminster | Carroll | 15 | Official site |
| Hagerstown Regional Airport Fire Department | Hagerstown | Washington | 14 | Official site |
| Seat Pleasant Volunteer Fire Company (Prince Georges County Fire Department) | Capitol Heights | Prince Georges | 13 | Official site |
| Cape St. Claire Volunteer Fire Company, Inc. (Anne Arundel County Fire Department) | Annapolis | Anne Arundel | 12 | Official site |
| Winfield Community Volunteer Fire Department | Sykesville | Carroll | 12 | Official site |
| Citizens Truck Company #4 (Frederick County Fire & Rescue) | Frederick | Frederick | 11 | — |
| Forestville Volunteer Fire Department Inc., No. 1 (Prince Georges County Fire Department) | Upper Marlboro | Prince Georges | 10 | Official site |
| Owings Mills Volunteer Fire Company of Baltimore County, Inc. (Baltimore County Fire Department) | Owings Mills | Baltimore | 10 | Official site |
| Arundel Volunteer Fire Department | Gambrills | Baltimore City | 9 | Official site |
| Snow Hill Volunteer Fire Department | Snow Hill | Worcester | 9 | Official site |
| Violetville Volunteer Fire Department (Baltimore County Fire Department) | Baltimore | Baltimore | 9 | — |
| Mardela Springs Volunteer Fire Company | Mardela Springs | Wicomico | 8 | — |
| Riviera Beach Volunteer Fire Company (Anne Arundel County Fire Department) | Pasadena | Anne Arundel | 8 | — |
| Maugansville Goodwill Volunteer Fire Company, Inc. | Maugansville | Washington | 7 | Official site |
| West Lanham Hills Volunteer Fire Department & Rescue Squad (Prince Georges County Fire Department) | Lanham | Prince Georges | 7 | Official site |
| Ferndale Volunteer Fire Company, Inc. (Anne Arundel County Fire Department) | Glen Burnie | Anne Arundel | 6 | Official site |
| Gamber & Community Fire Company | Finksburg | Carroll | 6 | Official site |
| Hampstead Volunteer Fire Engine & Hose Company No.1 | Hampstead | Carroll | 6 | — |
| Jefferson Volunteer Fire Company (Frederick County Fire & Rescue) | Jefferson | Frederick | 6 | Official site |
| Longmeadow Volunteer Fire Company, Inc. | Hagerstown | Washington | 6 | Official site |
| Odenton Volunteer Fire Company (Anne Arundel County Fire Department) | Odenton | Anne Arundel | 6 | Official site |
| The Glenn Dale Fire Association (Prince Georges County Fire Department) | Glenn Dale | Prince Georges | 6 | — |
| Riverdale Fire Department (Prince Georges County Fire Department) | Riverdale Park | Prince Georges | 5 | Official site |
| Singerly Fire Company | Elkton | Cecil | 5 | Official site |
| Accokeek Volunteer Fire Department | Accokeek | Prince Georges | 4 | Official site |
| College Park Volunteer Fire Department (Prince Georges County Fire Department) | College Park | Prince Georges | 4 | Official site |
| Hyattsville Volunteer Fire Department (Prince Georges County Fire Department) | Hyattsville | Prince Georges | 4 | Official site |
| Laurel Volunteer Fire Department NO 1, Inc. (Prince Georges County Fire Department) | Laurel | Prince Georges | 4 | Official site |
| St. Michaels Fire Department, Inc. | St. Michaels | Talbot | 4 | Official site |
| Braddock Heights Volunteer Fire Company, Inc. (Frederick County Fire & Rescue) | Braddock Heights | Frederick | 3 | — |
| Kentland Volunteer Fire Department (Prince Georges County Fire Department) | Landover | Prince Georges | 3 | Official site |
| Libertytown Volunteer Fire Department, Inc. (Frederick County Fire & Rescue) | Libertytown | Frederick | 3 | Official site |
| Middletown Volunteer Fire Company (Frederick County Fire & Rescue) | Middletown | Frederick | 3 | — |
| Mt. Aetna Volunteer Fire Department | Hagerstown | Washington | 3 | Official site |
| Reese and Community Volunteer Fire Company, Inc. | Westminster | Carroll | 3 | — |
| Lewistown District Volunteer Fire Department (Frederick County FR) | Frederick | Frederick | 2 | Official site |
| Parsonsburg Volunteer Fire Company | Parsonsburg | Wicomico | 2 | Official site |
| Union Bridge Fire Company | Union Bridge | Carroll | 2 | — |
| Bishopville Volunteer Fire Department, Inc. | Bishopville | Worcester | 1 | Official site |
| Funkstown Volunteer Fire Company, Inc | Funkstown | Washington | 1 | Official site |
| Pleasant Valley Community Fire Company | Westminster | Carroll | 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.