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Join/Renew Your Membership in the Mercer Island Historical Society

Pay Membership Dues Online--Easy as Pie!

Join or renew online using a credit card. No more mailing letters or writing checks!

Just select your membership level from the dropdown box below, then click on the “Subscribe” button. You will then be taken to the secure PayPal website to complete the transaction. You do not need a PayPal account to use this feature.


Just now joining? Here's more information:

The Mercer Island Historical Society invites you to become involved as a member so you can help explore, preserve, and share with others the fascinating heritage of this very special island community.

We welcome you to support us in collecting, preserving, and archiving historical documents, records, artifacts and memorabilia pertinent to Mercer Island. Members receive monthly program information and notice of other events and programs of interest to our members.

Current dues are:

Individual: $25.00 per year
Families: $30.00 per year
Sustaining: $50.00 per year

If Paying Dues by Mail:

Checks should be made out to “Mercer Island Historical Society” and mailed to:

Mercer Island Historical Society - Membership
PO Box 111
Mercer Island, WA 98040

Please include your name, address, phone, and email with your note. The Mercer Island Historical Society is a 501(c)(3) tax-exempt corporation.

This form is also available to assist you.


Volunteers are welcome:

We are always looking for volunteers to help with our many activities or to help on our committees.

If you have any of the following skills, we would be grateful for your time and commitment:

Administrative (typing, phone)
Computer (hardware, software)
Filing and Archiving
Public Speaking

For further information about volunteering or membership, please contact the Mercer Island Historical Society or email us using our contact form.

Thank you for your valued support!