From the Thurston County News Release:

RECYCLE YOUR CHRISTMAS TREE FREE

Pick-up Information

LeMay compost collection/yard waste customers: Put trees in or near your compost cart (in sections 3 ft. or less). Call 923-0111 for information.

Drop-off Locations

All Thurston County residents: Take trees to the Waste and Recovery Center at 2418 Hogum Bay Road NE, Lacey. Dec. 26 – Jan. 16 (closed Jan. 1) Mon. – Fri.: 7 a.m. to 5 p.m. Sat. & Sun.: 8 a.m. to 5 p.m.
Rainier residents: Take trees to the drop box at 13010 Rainier Acres Road from Dec. 26 – Jan. 14. Fri. & Sat.: 9 a.m. to 5 p.m.
Yelm residents: Take trees to Yelm City Park anytime from Dec. 26 – Jan. 10.

Flocked trees are accepted. Please remove all ornaments, lights, tinsel, stands, and nails from trees prior to recycling. Multi-family complex residents should check with their property manager for tree placement locations.