Decoded by Binary Rogue · Frequencies by RadioReference.com

Police Radio Encryption in California

California has an encryption rate of 10%. Out of 673 tracked public safety agencies, 27 are fully encrypted, 76 are partially encrypted, and 570 broadcast in the clear.

27
Encrypted
76
Partial
570
Clear

Agencies by Type

113
Public Safety
22 encrypted
63
Dispatch
12 encrypted
44
Law Enforcement
3 encrypted
21
EMS
4 encrypted
21
Federal
3 encrypted
7
Fire
2 encrypted
7
Government
3 encrypted
397
Other
54 encrypted

Encrypted & Partially Encrypted Agencies in California

County Breakdown

58 counties tracked across California. 33 have at least one encrypted or partially encrypted agency.

View all 58 counties
County Agencies Encrypted Partial Clear Rate
Humboldt County 1 0 1 0 50%
Santa Barbara County 6 0 4 2 33%
Amador County 3 1 0 2 33%
Marin County 3 1 0 2 33%
Yolo County 10 2 1 7 25%
Del Norte County 2 0 1 1 25%
Imperial County 2 0 1 1 25%
Shasta County 7 1 1 5 21%
Placer County 8 0 3 5 19%
Santa Clara County 24 2 4 18 17%
Butte County 12 1 2 9 17%
Ventura County 10 0 3 7 15%
Los Angeles County 151 12 16 123 13%
San Bernardino County 27 1 5 21 13%
Orange County 35 2 5 28 13%
Plumas County 4 0 1 3 13%
Fresno County 9 0 2 7 11%
Solano County 10 0 2 8 10%
Sutter County 10 0 2 8 10%
Monterey County 5 0 1 4 10%
Santa Cruz County 5 0 1 4 10%
San Diego County 47 3 3 41 10%
Lake County 6 0 1 5 8%
Tuolumne County 13 0 2 11 8%
Sacramento County 20 1 1 18 8%
Alameda County 28 0 4 24 7%
Stanislaus County 14 0 2 12 7%
Tulare County 7 0 1 6 7%
El Dorado County 8 0 1 7 6%
San Joaquin County 9 0 1 8 6%
Sonoma County 11 0 1 10 5%
Riverside County 29 0 2 27 3%
Kern County 15 0 1 14 3%
Contra Costa County 20 0 0 20 0%
San Francisco County 9 0 0 9 0%
San Mateo County 9 0 0 9 0%
Yuba County 8 0 0 8 0%
Nevada County 6 0 0 6 0%
Alpine County 5 0 0 5 0%
Calaveras County 5 0 0 5 0%
Glenn County 5 0 0 5 0%
Mariposa County 5 0 0 5 0%
Merced County 5 0 0 5 0%
Mono County 5 0 0 5 0%
Napa County 5 0 0 5 0%
Lassen County 4 0 0 4 0%
Mendocino County 4 0 0 4 0%
Tehama County 4 0 0 4 0%
Colusa County 3 0 0 3 0%
Sierra County 3 0 0 3 0%
Trinity County 3 0 0 3 0%
Inyo County 2 0 0 2 0%
Kings County 2 0 0 2 0%
Madera County 2 0 0 2 0%
Modoc County 2 0 0 2 0%
San Benito County 2 0 0 2 0%
San Luis Obispo County 2 0 0 2 0%
Siskiyou County 2 0 0 2 0%

What This Means for California Residents

California has a relatively low encryption rate of 10%. The majority of public safety agencies (570 out of 673) still broadcast in the clear, meaning scanner listeners and journalists retain access to most emergency radio traffic.

Encryption status can change at any time as agencies upgrade equipment or adopt new policies. The RTDNA considers police radio encryption the #1 threat to journalism in America. Use our search tool to check specific cities and counties in California.

Frequently Asked Questions

Is police radio encrypted in California?

In California, 27 out of 673 tracked public safety agencies use fully encrypted radio, and 76 use partial encryption. The overall encryption rate is 10%. Use the search tool on the homepage to check specific cities and counties.

Can I listen to police scanners in California?

Yes — 570 agencies in California still broadcast in the clear and can be monitored with a scanner. Check specific agencies using our search tool for detailed channel information.

How often is California data updated?

Data for California is synchronized weekly from RadioReference.com. Encryption status reflects the latest known radio configurations, though agencies can change their setup without notice. Report incorrect data.

Source: RadioReference.com · Updated weekly · Methodology

Search all 673 agencies in California →

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