San Bernardino County Agencies and Departments
The Fourth District Office is your source for information about County Programs including, but not limited to:
- Registrar of Voters
- Transitional Assistance Department
Ontario Office – Phone: 909.933.6330
MediCal – Phone: 909.458.9574 - Treasurer-Tax Collector
- West Valley Mosquito and Vector Control District
- Workforce Development
Public Safety
![A California Highway Patrol vehicle](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/07/CHP-1024x576.jpg?x33929)
California Highway Patrol
Emergency:
Phone: 911 (24-hour)
Non-Emergency:
Phone: 800.TELL.CHP (800.835.5247)
![A plane parked at the Chino Airport](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/Chino-Airport-CA-USA-1024x684.jpg?x33929)
Chino
Police – Phone: 909.591.9873
Fire – Phone: 909.902.5260
Graffiti Removal – Phone: 909.591.9837
![A fence covered in yellow flowers](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/A-fence-covered-in-flowers-1024x683.jpg?x33929)
Chino Hills
Police – Phone: 909.364.2000
Fire – Phone: 909.902.5260
Graffiti Removal – Phone: 909.364.2820
![Montclair sign with view of snowy mountains](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/Montclair-1024x704.jpg?x33929)
Montclair
Police – Phone: 909.621.5873
Fire – Phone: 909.395.2002
Graffiti Removal – Phone: 909.625.9429
![Ontario sign](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/District-4-Pictures_State-of-the-City-Chino-2015-018-1024x683.jpg?x33929)
Ontario
Police – Phone: 909-.395.2001
Fire – Phone: 909.395.2002
Graffiti Removal – Phone: 909.395.2626
![Grafitti being removed from concrete wall](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/Removal-of-graffiti-1024x683.jpg?x33929)
![Home with overgrown weeds in the front](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/Home-With-Overgrown-Front-Yard-1024x683.jpg?x33929)
San Bernardino County Weed Abatement
North of Phillips Blvd. – Phone: 909.387.4123
South of Phillips Blvd. – Phone: 909.902.5285
![A Veteran's Day Banner in the City of Upland](https://bosd4.sbcounty.gov/wp-content/uploads/sites/102/2023/04/UplandVeteran-1024x820.jpg?x33929)
Upland
Police – Phone: 909.946.7624
Fire – Phone: 909.931.4180
Graffiti Removal – Phone: 909.931.4127