Jefferson County Unit Numbering |
| Unit Number |
Municipality / Department |
| 2x's |
Johnson Creek Fire & EMS Department |
| 3x's |
Lake Mills Fire Department |
| 3xx's |
Jefferson County Sheriff's Department |
| 4xx's |
Jefferson County Sheriff's Department |
| 5xx's |
Jefferson County Sheriff's Department |
| 7xx's |
Jefferson County EMS Units |
| 36xx's |
Western Lakes Fire Department (Based Out of Waukesha County) |
| 39xx's |
Waterloo Fire Department |
| 41xx's |
City of Watertown Fire Department |
| 62xx's |
Town of Oakland Police Department |
| 63xx's |
Town of Lake Mills Police Department |
| 64xx's |
City of Jefferson Police Department |
| 65xx's |
Village of Johnson Creek Police Department |
| 66xx's |
Village of Palmyra Police Department |
| 67xx's |
City of Waterloo Police Department |
| 68xx's |
City of Lake Mills Police Department |
| 80xx's |
Sullivan Fire Department |
| 81xx's |
Fort Atkinson Fire Department |
| 82xx's |
Hellenville Fire Department |
| 83xx's |
Ixonia Fire & EMS |
| 84xx's |
City of Jefferson Fire Department |
| 85xx's |
Johnson Creek Fire District |
| 86xx's |
Palmyra Fire Department |
| 87xx's |
Lake Mills Fire Department |
| 88xx's |
Rome Fire Department |