CO
Colorado Scanner Frequency Guides
Select your county to see what you can monitor, which agencies are encrypted, and the best scanner equipment for your area.
Scanners are legal to own and use anywhere in Colorado, with no permit or registration required. Police scanners are completely legal in Colorado with no restrictions on ownership or use. Read the full Colorado scanner law guide →
34 of the 106 agencies we track in Colorado (32%) have moved to full encryption, meaning dispatch traffic from those departments no longer reaches a scanner at all. The county guides below break down where that access still exists and where it doesn't.
106 Total Agencies
34 Fully Encrypted
12 County Guides
County Frequency Guides
Fremont County ⚠️ Mixed
12 agencies 33% encrypted
Arapahoe County 📡 Open
9 agencies 22% encrypted
Larimer County 📡 Open
8 agencies 25% encrypted
Jefferson County ⚠️ Mixed
8 agencies 50% encrypted
Garfield County ⚠️ Mixed
7 agencies 57% encrypted
Denver County ⚠️ Mixed
6 agencies 50% encrypted
Pueblo County 📡 Open
5 agencies 20% encrypted
Mesa County 📡 Open
5 agencies 20% encrypted
Douglas County 📡 Open
4 agencies 25% encrypted
El Paso County 📡 Open
4 agencies 0% encrypted
Elbert County 🔒 Encrypted
3 agencies 67% encrypted
Montrose County 📡 Open
3 agencies 0% encrypted