Marengo County Alabama Police Scanner Livev
Current time in Marengo County, Alabama:
Marengo County, Alabama Police Scanner Live
Police, Fire & EMS Scanner Live Audio
Marengo County Alabama Police Scanner Live
Listen to Marengo County public safety radio and see exactly what you can and cannot hear. This page covers the Marengo County Sheriff’s Office, Demopolis Police and Fire, Linden Police and Fire, Thomaston Police, Sweet Water Fire, local volunteer fire departments, emergency medical services, and state law enforcement in the Demopolis, Linden, and Thomaston areas. It includes frequencies, system talkgroups, the encryption picture, coverage by community, and a guide to getting a scanner or mobile app set up.
1. Listen live
Marengo County radio traffic centers on Demopolis (the largest city) and Linden (the county seat), extending outward to Thomaston, Sweet Water, Dayton, Faunsdale, Dixons Mills, Nanafalia, and surrounding Black Belt agricultural communities. Listeners typically hear dispatch for law enforcement and fire along US 80, US 43, State Route 10, State Route 25, and State Route 69.
A few realistic expectations:
- Some channels are encrypted: Tactical law enforcement operations are encrypted.
- Transmission delays: Online audio stream feeds process through servers with standard streaming delay.
- Cross-border coverage: Marengo County shares borders with Hale, Perry, Dallas, Wilcox, Clarke, Choctaw, and Sumter counties.

2. What you can hear
| Service | What Listeners Typically Hear |
| Sheriff | Main dispatch for deputies patrolling rural areas, river basins, and agricultural routes. |
| Municipal Police | Primary dispatch operations for Demopolis Police and Linden Police. |
| Fire | Marengo County 911 fire dispatch, Demopolis Fire, Linden Fire, and volunteer fireground ops. |
| EMS and Rescue | Regional ambulance dispatches and Whitfield Regional Hospital HEAR patient reports. |
| State and Mutual Aid | Alabama State Troopers (Demopolis Post headquarters) and US Coast Guard river safety. |
3. Sheriff’s office scanner
The Marengo County Sheriff’s Office, operating from Linden, provides primary law enforcement across unincorporated county areas, operates the Marengo County Jail, and manages court security.
- Primary Dispatch (Conventional VHF): Main Sheriff dispatch operates on conventional VHF frequency 155.700 MHz (PL 100.0).
- Secondary Operations: Secondary channels operate on 155.070 MHz.
4. Police department scanner coverage
Demopolis Police Department
Patrolling the county's largest city along the Tombigbee and Warrior rivers, Demopolis Police operate primary dispatch on conventional VHF frequency 155.535 MHz (PL 100.0).
Linden Police Department
Patrolling the county seat, Linden Police operate primary dispatch on conventional VHF frequency 155.670 MHz (PL 100.0).
5. Fire department scanner
Marengo County 911 dispatches volunteer fire departments and municipal fire services via conventional VHF channels.
- Marengo County Fire Dispatch: 154.205 MHz (PL 100.0)
- Demopolis Fire Department Dispatch: 154.340 MHz (PL 100.0)
- Linden Fire Department Dispatch: 154.190 MHz (PL 100.0)
Local fire departments include Demopolis Fire, Linden Fire, Thomaston VFD, Sweet Water VFD, and Faunsdale VFD.
6. EMS and medical dispatch scanner
EMS ambulance dispatches occur over county fire frequencies (154.205 MHz). Inbound paramedic patient status reports to Whitfield Regional Hospital in Demopolis are transmitted on standard HEAR 155.340 MHz (PL 100.0).
7. Frequencies and radio systems
Conventional Frequencies Table
| Frequency (MHz) | Tone / Code | Agency / Service | Band | Mode | Status |
| 155.700 | PL 100.0 | Marengo County Sheriff Primary Dispatch | VHF | FM | Clear |
| 155.535 | PL 100.0 | Demopolis Police Primary Dispatch | VHF | FM | Clear |
| 155.670 | PL 100.0 | Linden Police Primary Dispatch | VHF | FM | Clear |
| 154.205 | PL 100.0 | Marengo County Fire Dispatch | VHF | FM | Clear |
| 154.340 | PL 100.0 | Demopolis Fire Department Dispatch | VHF | FM | Clear |
| 155.340 | PL 100.0 | Whitfield Regional Hospital HEAR | VHF | FM | Clear |
| 155.445 | PL 107.2 | Alabama State Troopers (Demopolis Post HQ) | VHF | FM | Clear |
| 162.400 | N/A | NOAA Weather Radio | VHF | FM | Clear |
8. Coverage across the county
| Area | What to Expect |
| Demopolis | Commercial river port activity, city police dispatch, municipal fire calls, and state trooper post HQ along US 80 and US 43. |
| Linden | County seat activity, municipal police, sheriff dispatch, and hospital traffic along US 43 and SR 69. |
| Thomaston & Sweet Water | Rural Sheriff patrol and volunteer fire dispatches along SR 10 and SR 25. |
9. How to listen
Program conventional VHF frequencies (155.700 MHz, 155.535 MHz, 154.205 MHz) into any analog scanner or stream via mobile apps.
10. Why the scanner may not be working
Standard analog scanners decode all primary dispatch channels. Tactical encryption or quiet periods account for silence.
11. Is the radio encrypted?
Primary Sheriff, Police, and Fire dispatch channels are unencrypted. Tactical operations are encrypted.
12. Nearby counties
Hale County, Perry County, Dallas County, Wilcox County, Clarke County, Choctaw County, and Sumter County.
13. Official public safety resources
Marengo County Sheriff’s Office, Demopolis Police Department, Linden Police Department, and Whitfield Regional Hospital.
14. Frequently asked questions
What frequency is Demopolis Police on?
Demopolis Police dispatch operates on conventional VHF 155.535 MHz (PL 100.0).