Jefferson County Police: the only agency listed in Jefferson County
1 public safety agencies in Jefferson County, Illinois have encrypted their radio communications. 100% Encrypted
Radio encryption in Jefferson County
Jefferson County's record contains one agency, Jefferson County Police, listed as encrypting all monitored channels with P25 AES-256 on the Mt Vernon IL Public Safety system. That record is unverified against RadioReference and should be treated as unconfirmed. The single catalogued talkgroup for the county is encrypted, leaving nothing monitored in the clear in this dataset. With one unverified agency and one talkgroup on file, this is a very thin entry and current status is best checked directly.
Compiled from this site's agency database. Encryption status changes without notice — confirm any specific agency on RadioReference.
Radio systems serving Jefferson County
- Mt Vernon IL Public Safety
Of 1 talkgroups catalogued for Jefferson County, 1 is encrypted and 0 remain in the clear. No catalogued channel here is receivable.
0 of 1 records here have been checked against a primary source; 1 has 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 Jefferson County
Encrypted Agencies in Jefferson County
| Agency Name | Type | Encryption | Scope |
|---|---|---|---|
| Jefferson County Police | Police | P25 AES-256 | Fully Encrypted |
Related Case Studies
Learn more about police radio encryption issues in Illinois.
Frequently Asked Questions
Is Jefferson County Police radio encrypted?
Jefferson County Police is listed as discovered via radioreference (1 encrypted talkgroups) using P25 AES-256. It is the only Jefferson County, Illinois agency in this database. This status is listener-reported and not verified against a primary source — check RadioReference for the current picture.
What radio system does Jefferson County Police use?
Listed on Mt Vernon IL Public Safety. Talkgroup detail and current status are on RadioReference.
Are other Jefferson County agencies encrypted?
Jefferson County Police is the only Jefferson County agency currently listed here. That does not mean it is the only one in the county — it means the others have not been recorded in this database yet.
Fight Encryption in Jefferson County
Join the movement to restore transparency to public safety communications in Jefferson County, Illinois.