Child Support in Lassen County, California

Lassen County accepts fax filing for family law documents. Many California courts now use web-based e-filing instead, so this option matters if you file a child support case here. The Superior Court of California, County of Lassen is at 2610 Riverside Drive, Susanville, 96130, phone (530) 251-8205.

Lassen has its own Local Child Support Agency at 2950 Riverside Drive, Ste. 104 in Susanville. The office is near the courthouse, but it is separate from the court. It handles parentage establishment, guideline calculations, and direct collection or enforcement of support for county cases.

The support formula is the same in every county, including Lassen. It is Family Code section 4055, and it uses net income and the split in the parenting schedule. Use the state's free calculator to estimate the amount before you file, fax, or mail your paperwork. Then file a Request for Order (FL-300) with an Income and Expense Declaration (FL-150) by mail, fax, or in person. You can also ask the local agency to open an enforcement case.

The court's Case Index & Calendar Portal lets you view filings and hearing dates online without calling the clerk. Use it to check case status between trips to Susanville.

How child support is calculated in California

California sets child support with a statewide uniform guideline (Family Code section 4055) that applies the same way in Lassen County as everywhere else. The formula is based mainly on two things:

1. Both parents' net disposable incomes.
2. The percentage of time the child spends with each parent (the timeshare).

The guideline amount is presumed to be correct, and courts use a calculator to run the numbers. Because the result depends on accurate income, the Income and Expense Declaration (Form FL-150) you file is what drives your number.

Where child support cases are handled in Lassen County

Child support in Lassen County is handled through the Superior Court of California, County of Lassen, and the county's Local Child Support Agency, which is part of the California Department of Child Support Services. There are two common paths:

1. Either parent files a Request for Order (Form FL-300) with an Income and Expense Declaration (Form FL-150) inside a divorce, parentage, or custody case.
2. The Local Child Support Agency opens a case to establish, collect, and enforce support, often at no cost to the parents.

Because courthouse and local agency office details change over time, confirm current details using the official California Courts court finder:

Find the Lassen County Superior Court (official California Courts finder)

Local notes for Lassen County

Fax filing is available here. If getting to Susanville is difficult, ask the clerk if your specific document can be faxed instead of dropped off in person. The Case Index & Calendar Portal is separate from filing. Use it to check status and hearing dates, not to submit documents.

Lassen's self-help resource, at lassen.courts.ca.gov/divisions/family-law/family-law-facilitator, helps self-represented parents with forms and procedure. Staff will not tell you how your particular case should be decided, and exact drop-in hours are not posted. The court's website also does not confirm if a commissioner or judge usually hears child support matters in Lassen, so ask when you check in.

Susanville is far enough from other population centers in Lassen County that fax and mail options can make a real difference. Not every rural county still keeps that route open. Even so, confirm with the clerk before you rely on fax for anything with a hard deadline. A machine problem on either end can use up time you need to respond.

Official child support resources in Lassen County

Superior Court of California, County of Lassen handles child-support filings, located at 2610 Riverside Drive, Susanville 96130. Phone: (530) 251-8205.

E-filing is available. The court's Case Index & Calendar Portal lets you view filings and hearing dates online, and the court accepts fax filing for family law documents.

Lassen County Self-Help Center / Family Law Facilitator (https://www.lassen.courts.ca.gov/divisions/family-law/family-law-facilitator) can help with procedure and paperwork. Helps self-represented parents with forms and procedure; cannot give legal advice for your situation.

• Superior Court of California, County of Lassen
• Lassen County Self-Help / Family Law Facilitator
• Lassen County Local Child Support Agency
• California Guideline Child Support Calculator
• Form FL-300 Request for Order
• Form FW-001 Request to Waive Court Fees

Local details reviewed August 2026. Offices and locations can change, so confirm with the official sites above before you file.

Lassen County Child Support FAQs