1 of 7 Madison County agencies are fully encrypted
7 public safety agencies in Madison County, Illinois have encrypted their radio communications.
Radio encryption in Madison County
Partial encryption is the rule in Madison County: five of the seven tracked agencies encrypt only specific channels, and two, Highland and Troy police, are listed as encrypting everything. Bethalto Fire, Edwardsville Fire/EMS, Godfrey Fire, Granite City Police and SUIE Police all appear with P25 AES-256 applied to specific channels rather than across the board. Five of the seven records are unverified against RadioReference. Monitoring coverage here is thin, with only three talkgroups tracked and all three currently in the clear, across STARCOM21 Statewide Illinois, the Warner Communications DMR system and Phillips 66 Refineries. The small talkgroup count means these figures describe what is catalogued, not the full radio picture in the county.
Compiled from this site's agency database. Encryption status changes without notice — confirm any specific agency on RadioReference.
Radio systems serving Madison County
- Phillips 66 Refineries
- Warner Communications (DMR 13)
- STARCOM21 Statewide Illinois
Of 3 talkgroups catalogued for Madison County, 0 are encrypted and 3 remain in the clear. A scanner can still receive the unencrypted channels.
2 of 7 records here have been checked against a primary source; 5 have not.
System and talkgroup counts come from this site's agency database and change without notice — confirm current status on RadioReference.
Encryption Technology Used in Madison County
Encrypted Agencies in Madison County
| Agency Name | Type | Encryption | Scope |
|---|---|---|---|
| Bethalto Fire | Fire | P25 AES-256 | Specific Channels |
| Edwardsville Fire/EMS ✓ | Fire | P25 AES-256 | Specific Channels |
| Godfrey Fire | Fire | P25 AES-256 | Specific Channels |
| Granite City Police | Police | P25 AES-256 | Specific Channels |
| Highland Police | Police | P25 AES-256 | Partially Encrypted |
| SUIE Police | Police | P25 AES-256 | Specific Channels |
| Troy Police ✓ | Police | P25 AES-256 | Fully Encrypted |
Related Case Studies
Learn more about police radio encryption issues in Illinois.
Frequently Asked Questions
Is Madison County police radio encrypted?
1 of 7 agencies in Madison County, Illinois are fully encrypted (14%), while 6 have partial encryption.
How many police departments in Madison County are encrypted?
4 police departments in Madison County have implemented some level of encryption, along with 0 sheriff offices, 3 fire departments, and 0 EMS agencies.
What encryption technology does Madison County use?
The most common encryption type in Madison County is P25 AES-256, used by agencies for secure communications. This encryption blocks public scanner monitoring.
Fight Encryption in Madison County
Join the movement to restore transparency to public safety communications in Madison County, Illinois.