Marin’s waste haulers are offering free disposal services throughout the county to help residents get rid of their Christmas trees.

Residents of San Rafael, Larkspur, Ross, San Anselmo, Fairfax and some unincorporated areas of Marin served by Marin Sanitary Service can leave trees at the curb for free pickup on regular garbage collection days between Dec. 30 and Jan. 17. Trees taller than 6 feet must be cut in half.

In Southern Marin, Mill Valley Refuse — which serves Mill Valley, Tiburon, Belvedere, Corte Madera and some unincorporated Marin County areas — is offering free curbside tree pickup on regular garbage collection days. Beginning Jan. 6, customers have two weeks to leave their trees at the curb. Trees over 5 feet tall must be cut. Ornaments, tinsel and stands must be removed.

“Our push is to try to keep trees out of the landfill, because they’re compostable and they’re easily processed and used for mulch,” said supervisor Matt Willemsen.

The trees will be brought to Redwood Landfill in Novato, where they will be ground and turned into compost, he said.

Sausalito and Marin City residents served by Bay Cities Refuse can leave trees by the curb throughout the year, said manager Greg Christie. The garbage hauler picks up the trees at no charge on regular collection days. The trees are ground and composted.

Tamalpais Community Services District, which serves customers in Tamalpais Valley, will pick up trees at the curb on regular garbage collection days between Jan. 8 and 11 at no charge. Customers can call the district and arrange to have trees picked up on different dates for a $30 fee.

“Remove all decorations and stands and leave the tree at your normal cart collection spot,” said finance manager Jerry Taylor.

Trees will be ground and turned into compost, Taylor said.

Recology is offering free curbside tree pickup for its Novato customers on regular collection days between Dec. 30 and Jan. 3. Trees taller than 6 feet must be cut.

The company isn’t offering curbside tree collection in West Marin, but it has set up several collection bins. Trees can be dropped off through Jan. 9 at the Point Reyes fire station at Fourth and B streets; the Tomales fire station at 599 Dillon Beach Road; or the Woodacre fire station at 33 Castle Rock Road.

Trees will be turned into compost at the Redwood Landfill, according to Recology manager John Legnitto.

A group of San Marin High School volunteers is offering a tree disposal program to raise money for the school’s “Safe and Sober Grad Night” event. Trees can be dropped off at the high school parking lot between 9 a.m. and 4:30 p.m. on Dec. 28 and 29 and Jan. 4, 5, 11 and 12. The volunteers ask for a $10 donation for regular trees and a $20 donation for flocked trees.