California DMV-Licensed · License #E0756
Sierra County Traffic School
Online traffic school for tickets from Downieville, Loyalton, Sierra City and the rest of Sierra County
Cited on State Route 49 between Downieville and Sierra City, or on State Route 89 near Sierraville? Mirai Traffic School holds California DMV license E0756 and teaches its $24.99 course online in English, Spanish, Japanese or Russian, then reports your completion to the DMV electronically.
- DMV Licensed
- Online Course
- Same-Day Submission

Sierra County, California
SAFE ROADS · BRIGHTER TOMORROWS
Local facts at a glance
- County seat
- Downieville
- Traffic courthouses
- Sierra County Superior Court · 46100
- CHP area offices
- Quincy Area, Truckee Area, Grass Valley Area
- Main state routes
- I-80, US 395, SR 49, SR 89
- Sheriff
- Sierra County Sheriff's Office
- Mirai Traffic School's languages
- English, Español, 日本語, Русский
- Where the court sends you to find a school
- The DMV's school search
Facts checked on September 25, 2026Sources
Your citation
Traffic courts in Sierra County
Your courtesy notice names the courthouse assigned to your case.
DMV court code 46100 belongs to the Sierra County Superior Court at 100 Courthouse Square, Downieville, the county's courthouse. The clerk's office answers at (530) 289-3698.
Important
The court decides whether you are eligible for traffic school. Mirai Traffic School cannot approve or guarantee eligibility. Check your courtesy notice, or ask Sierra County Superior Court, if you are unsure.
Driving here
Sierra County ranks 1st in California for crash victims, and every ticket goes to Downieville
What the roads, the courts and the rules mean for a citation in Sierra County.
Sierra County had 3,098 residents in the Census estimate for July 1, 2025, down from 3,232 in 2020. State Route 49 winds along the North Yuba River through Downieville and Sierra City and over to Sattley, State Route 89 runs north from Sattley through Sierraville, and the road to Loyalton heads east. In 2023 the California Office of Traffic Safety counted 41 people killed or injured in county crashes, 1st of 58 counties in a ranking where 1st is the worst. Speed-related and motorcycle crashes both rank 2nd.
Every ticket goes to the Sierra County Superior Court at 100 Courthouse Square in Downieville. The California Highway Patrol covers Sierra County from its Quincy, Truckee and Grass Valley Areas, and a CHP ticket lands at that same courthouse. You must respond to your citation whether or not a courtesy notice arrives, so if none has come, ask the court before your court date.
Once you finish the course, the court pulls your electronic certificate from the school or the DMV and reports the violation to the DMV as a confidential conviction. Its traffic page links a service where you can see whether the certificate has arrived.
- Population (2025)
- 3,098
- Incorporated cities
- 1
Why Mirai Traffic School
A course built for California drivers
What you get with Mirai Traffic School, and the four steps from signing up to your certificate.
Why choose Mirai Traffic School
Online traffic school for Sierra County drivers
DMV Licensed
License #E0756
Multilingual
EN / ES / JA / RU
Any Device
Phone, tablet, desktop
Local Support
We're here to help
Local Focus
Serving Sierra County
How traffic school works
Complete your traffic school in four simple steps:
- 1RegisterSign up in 2 minutes
- 2CompleteStudy at your own pace
- 3Pass ExamFinal test, 70% to pass
- 4We ReportReported to the DMV electronically
Questions
Frequently asked questions
What drivers ask most about a Sierra County citation.
The statewide rules
Every ticket written in this county goes to its superior court, which decides whether to allow traffic school. Once in any 18 months, a completed licensed course makes the conviction confidential and adds no point. The statewide rules and their sources are on our California traffic school rules page.
Sources
Every county and court fact on this page, with the date each was last read.
- Census CO-EST2025 county estimates, XLSX
- OTS county rankings, Sierra County 2023
- OTS crash rankings method
- Sierra traffic
- Sierra locations and contact info
- CHP Quincy Area
- CHP Truckee Area
- CHP Grass Valley Area
- Sierra if you can't afford to pay
- Sierra interpreters and language services
The court decides traffic school eligibility, not Mirai Traffic School. Mirai Traffic School is not a law firm and does not give legal advice.
Ready to clear your Sierra County ticket?
$24.99 · Online · Filed electronically for Sierra County Superior Court
Nearby counties
Counties bordering Sierra County that we also serve:
Have questions?
Contact our support team. We're here to help.

