Madison County, Illinois: Police Scanner Guide
Madison County has significant unencrypted radio traffic. A digital scanner gives you broad coverage of police, fire, and EMS channels.
What You Can Still Monitor in Madison County
- Fire and EMS dispatch
- NOAA Weather Radio
- Public works channels
Recommended Scanners for Madison County
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Agencies in Madison County
Data from the RadioReference database and direct verification. View all Illinois agencies →
| Agency | Type | Encryption |
|---|---|---|
| Bethalto Fire | fire | P25 AES-256 |
| Edwardsville Fire/EMS | fire | P25 AES-256 |
| Godfrey Fire | fire | P25 AES-256 |
| Granite City Police | police | P25 AES-256 |
| Highland Police | police | P25 AES-256 |
| SUIE Police | police | P25 AES-256 |
| Troy Police | police | P25 AES-256 |
Frequently Asked Questions
What can I monitor in Madison County, Illinois?
Madison County has significant unencrypted radio traffic. A digital scanner gives you broad coverage of police, fire, and EMS channels. Check the local fire and EMS frequencies which often remain unencrypted even when police go encrypted.
Is police radio encrypted in Madison County?
Yes — 1 out of 7 agencies in Madison County use full encryption. An additional 5 use partial encryption. Fire and EMS frequently remain unencrypted.
What scanner do I need for Madison County?
For Madison County's mix of digital and analog traffic, you need a P25-capable scanner. The Uniden BCD436HP decodes both P25 Phase I and Phase II, which covers most modern trunked systems.