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Joining Mt. Si Senior Center helps over 1,400 older local adults stay connected, active, and supported at every stage of aging. Membership strengthens the programs, relationships, and welcoming spaces that reduce isolation and help seniors remain part of the community they helped build.

We're here for you!
Discover Community, Connection, and Opportunity at MSSC

Join us for an exciting year filled with friendships, engaging activities, and a supportive community ready to welcome you. At Mt. Si Senior Center, you’ll find everything you need for a vibrant and independent lifestyle, from meaningful connections to valuable resources and advocacy.

Membership comes with great perks! Enjoy benefits at the Center and beyond, including special discounts through our partnerships with local businesses, helping you save all year long.
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Your next adventure starts here!
Join the Mt. Si Senior Center Family for 2026–2027
Membership Rates:
  • Individual: $65 / year
  • ​Couples (spouse or domestic partner): $130 / year

Whether you’re joining for the first time or renewing, please complete our Membership Application and Client Information Form—available for download below or for pickup at the Center. You can submit your completed forms and payment by:
  1. Mail:
    Mt. Si Senior Center
    PO Box 806
    North Bend, WA 98045
  2. In Person:
    Drop off at the front desk during Center hours. (Forms available for download below.) Our address: 411 Main Ave South, North Bend.
  3. Online:
    Register below and choose our convenient automatic annual renewal option to keep your membership active without a second thought.
Thank you for supporting the programs, services, and friendships that make Mt. Si Senior Center a vibrant community!

BENEFITS OF MEMBERSHIP
Enjoy discounts at these local businesses: (Click the links below to learn more...)​


We're always looking for new businesses to partner with!  Interested in supporting seniors through local discounts, stop by the office, call 425-888-3434, or email Tracie at [email protected]. 



AND, there's more!

  • Members only dinner May 2027
    • GREASE! Revival
  • Fresh, nutritious lunches served Monday through Friday
  • Fitness and movement classes for beginners through advanced, with fees that fit your budget
  • Affordable low-income senior housing one block from the center
  • Transportation throughout the Snoqualmie Valley for appointments, errands, and daily needs
  • Social groups and gathering spaces where friendships grow
  • A senior advocate who connects you with services, benefits, and local resources
  • Cultural events, speakers, and educational programs throughout the year
  • Private one-on-one counseling to strengthen wellness and support independent living
  • Onsite appointments for foot care, routine wellness checks, and health insurance help
  • Workshops and take-home resources to guide health and care decisions
  • An invitation to the General Membership Annual Meeting in February 2026
Membership Reminders:
Our membership year runs from February 1 through January 31 of the following year.
Members are invited to attend our Annual Meeting of the General Membership and Board of Directors, held the third Tuesday in February each year.

Memberships are treated as donations and are non-refundable.
Mt. Si Senior Center is a 501(c)(3) nonprofit organization. EIN: 91-1009419.

Questions, call 425-888-3434 or email [email protected]
Statement of Non-Discrimination:
We prohibit discrimination based on race, color, creed, sex, religion, marital status, age, national origin or ancestry, physical or mental disability, or medical condition including genetic characteristics, sexual orientation, or any other consideration made unlawful by federal, state or local laws. Unlawful discrimination will not be tolerated.