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From the world's biggest dairy town to warehouses, a prison, and an airport
Chino's identity was built on milk, not logistics. The Chino Valley Agricultural Preserve, formed in 1968 under California's Williamson Act, was once the most intensive dairy region on earth — close to 400 dairies and roughly 400,000 cows packed into about 17,000 acres, generating an estimated $800 million a year in dairy production by 1976, the third-largest milk output of any region in California behind only Tulare and Merced counties. That era is gone; today the preserve's land is almost entirely warehouses, distribution centers, and housing tracts, not a single working dairy remains, but the "Chino Valley" name on the map is a direct legacy of it.
Two other Chino landmarks matter for anyone searching for a DUI lawyer here. Chino Airport (CNO), a county-owned general-aviation field just southeast of the city, is one of the busiest non-commercial airports in the Inland Empire, with a steady mix of flight students, corporate traffic, and weekend fly-ins. And California Institution for Men (CIM), a state prison operated by the California Department of Corrections and Rehabilitation at 14901 Central Avenue, sits within Chino's city limits — a fact we state plainly because it's often searched, not because it has anything to do with how a typical misdemeanor or felony DUI case moves through the system. A CIM commitment is a state-prison sentence; most Chino DUI cases resolve well short of that, in the local courts described below.
Who polices DUI in Chino: Chino PD and the CHP
Chino runs its own police department — unlike neighboring Chino Hills, which contracts with the San Bernardino County Sheriff's Department for patrol, Chino has kept an independent force since 1913. The Chino Police Department, headquartered at 5450 Guardian Way, handles DUI arrests on surface streets and local roads throughout the city. The California Highway Patrol's Rancho Cucamonga Area Office, at 9530 Pittsburgh Ave in Rancho Cucamonga ((909) 980-3994), is the agency responsible for freeway and unincorporated-road DUI enforcement across a roughly 250-square-mile patrol area that explicitly includes Chino alongside Chino Hills, Ontario, Montclair, Upland, Fontana, Rancho Cucamonga, Mt. Baldy, and San Antonio Heights. State Route 71, the Chino Valley Freeway, runs along Chino's western boundary with Chino Hills and is a corridor where CHP DUI enforcement is common.
- California's Office of Traffic Safety 2023 rankings placed Chino (Group C, average population 93,620) at 82nd out of 103 comparable cities for DUI arrests, with 243 reported that year.
- The same OTS report ranked Chino 28th out of 103 comparable cities for alcohol-involved-collision victims killed or injured — 52 people — a notably worse relative standing than its arrest-count rank, meaning the collision toll is more serious, proportionally, than the arrest volume alone suggests.
- Of those 52 victims, 7 involved a driver under 21 who had been drinking (ranked 12th of 103 — a relatively high concentration) and 21 involved a driver age 21–34 (ranked 40th of 103).
Where a Chino DUI case is heard
A DUI arrest by Chino PD or the CHP within city limits is filed at the San Bernardino County Superior Court's Rancho Cucamonga District — also called the West Valley court — at 8303 Haven Avenue, Rancho Cucamonga, CA 91730. The court's own "Where Can I File?" page lists its felony and misdemeanor areas served as "Alta Loma, Chino and Chino Hills, Etiwanda, Guasti, Montclair, Ontario, Rancho Cucamonga, Upland, parts of Pomona and unincorporated area of Mt. Baldy, Fontana, Rialto, Crestmore, Bloomington, and unincorporated areas of Lytle Creek" — naming Chino explicitly. The San Bernardino County District Attorney's Office, not the City of Chino, decides what to charge and prosecutes the case. California also opens a separate administrative action against your driving privilege the moment you're arrested, and you have only 10 days to request a hearing to fight it — see our DMV hearing page for how that works.
Rancho Cucamonga District — court & DMV details for Chino
Where will my Chino DUI case be heard?
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Ron defends DUI cases across Southern California from his Irvine office, in English and Farsi — and works directly with you, not a call center.
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