Mercer County (MO)

Return to Mercer County MO Database page MOSWIN Unit IDs (UIDs, RIDs)
Return to Missouri state Database page Main WIKI, Counties/Map

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Mercer County

As of the 2020 census, the population was 3,538, making it the second-least populous county in Missouri. Its county seat is Princeton

Mercer County Sheriff FB

• Mobile Extenders - 453.5625 WQEW413 [Terminated 5/07] FMN Deprecated 8/1/25

Mercer County Ambulance District

• Shows Permanently closed on Google.

Mercer County PWSD 1

• 173.2875 4 Locations (Goshen, Mercer) 20W FXOs (6K Data) WSKF949 Issued 9/25
• 173.2875 6 Locations (Lineville IA, Mercer, Lucerne, Princeton) 20W FXOs (6K Data) WSKF952 Issued 9/25

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Municipalities and Districts

Mercer County Fire Protection District FB

Provides primary fire suppression to 245 sq.mi. of Mercer County and extrication services to 455 sq.mi. (mcfire@grm.net chief)

• 154.19 WQAZ853 BM Fire (Princeton) [Expired 9/24] FMN No PL tone, deprecated 4/26 (They tried to renew late 4/26, dismissed)
• 155.22 WQAZ853 BM 127.3 PL EMS (Princeton) [Expired 9/24] FMN Deprecated 4/26, already listed under Ambulance District

• Truck 42 - extendable aerial
• 7045 / R-45 Pierce Rescue Heavy Duty white/red

Princeton WEB cc

Princeton Fire/EMS

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Schools

First Student

• Licensed as Durham School Services at Trenton, Princeton, Galt
• FS Bus Mercer - 155.265 Mobiles WQDG720 [Expired 8/25] Buses Deprecated 4/27/26

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Princeton R5 Schools WEB FB MAP

• Serves most of the county (see map above)
• 154.54 Repeater with 159.525 input (NFM) WQZW533

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Businesses

• Moore Brothers Farms: WPLF493 461.775 Repeater (Princeton)

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