The Deer Grove EMS District was formed in 1978 when the villages and towns of Cottage Grove and Deerfield drafted an inter-municipal agreement to combine resources for the provision of Emergency Medical Services. Since that time, the department has grown beyond EMT-Basic and Intermediate licensure and now provides Paramedic level service - the highest licensed level of pre-hospital emergency care available in Wisconsin. In 2008, the District grew to include a portion of the Town of Pleasant Springs through contracted services. In 2012, the inter-municipal agreement was amended when the Town of Deerfield chose to pursue other options. In July of 2018, Deer Grove EMS happily welcomed the Town of Deerfield back on a contracted service basis.
In its current arrangement, the Deer-Grove EMS (DGEMS) District covers approximately ninety-five (95) square miles and represents a population of approximately 18,900 residents. DGEMS operates out of two stations, each has a defined quarters area, and each has the ambulance bay separated from the quarters area. These stations are collocated with the Cottage Grove Fire Department in the Cottage Grove Emergency Services Building, and Deerfield Volunteer Fire Department inside the Deerfield Fire Department. DGEMS utilizes a combined-type staffing model to provide two ambulances on duty 24/7/365, meaning the department staffs the ambulances with volunteer, part-time/limited-term, and full-time employees. Full-time paramedic employees are used as the staffing base for the primary ambulance. Part-time/casual staff members are also paramedics and are used to cover vacancies in the schedule. DGEMS offers volunteer positions to emergency medical technicians (EMT), advanced emergency medical technicians (AEMT), and emergency medical technicians paramedics.