31 of 32 St. Louis County agencies are fully encrypted

Radio encryption in St. Louis County

St. Louis County is one of the most heavily encrypted county records in this database, and also one of the best documented. 32 agencies are tracked, 30 of them municipal police departments; 31 encrypt every monitored channel and 1 encrypts only part. All 32 records list P25 ADP as the method. Ballwin, Berkeley, Bridgeton, Charlack, Crestwood, Des Peres, Ellisville, Florissant, Frontenac and Ferguson police are among those logged as fully encrypted, alongside Bellfountain Neighbours and Brentwood police, which are among the 5 records here still unverified against RadioReference system data. What separates St. Louis County from a true blackout is the sheer size of the local trunked infrastructure. Across the St. Louis Area Trunked Emergency Radio (SLATER) system and the other systems catalogued here — including STARCOM21 Statewide Illinois, AmerenMissouri (P25), the Boeing Company (Hazelwood) site, First Student - St. Louis (LTR) and two Warner Communications systems — 326 of 461 listed talkgroups remain in the clear against 125 encrypted.

Compiled from this site's agency database. Encryption status changes without notice — confirm any specific agency on RadioReference.