If available, see below for a list of known police frequencies for Mazon, Illinois. Or, navigate to another city or town within Grundy County, to view the local police frequencies.
Below are any trunking frequencies and their corresponding talkgroups (decimals). Be sure to check the system name of each frequency and talkgroup to make sure you are inputting everything correctly into your scanner (some systems are different types, so you'll need to input each system separately).
| System Name | System Type | Frequency |
|---|---|---|
| Grundy County Public Safety | Motorola Type II Smartnet | 851.825 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 852.1875 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 852.6625 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 853.0875 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 853.6625 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 854.1625 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 854.2375 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 854.3625 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 854.5375 |
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| Grundy County Public Safety | Motorola Type II Smartnet | 854.7125 |
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| System Name | Talkgroup | Description |
|---|---|---|
| Grundy County Public Safety | 240 | Mazon Police - Dispatch |
| Braceville | Carbon Hill | Coal City | Diamond | |
| Dwight | East Brooklyn | Gardner | Godley | |
|
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| Kinsman | Mazon | Minooka | Morris | |
| Seneca | South Wilmington | Verona | ||
Detect police activity and stay ticket-free in Mazon, Illinois with these police radar detectors.