St. Monica Catholic Church is located on Mercer Island, in the middle of Lake Washington to the East of Seattle (4311 88th Ave SE, Mercer Island, WA 98040). Our parish office (4301 88th Ave SE, Mercer Island, WA, 98040) is open Monday - Friday from 8:00AM-4:00PM (work hours vary per staff member). You can reach us by calling (206)232-2900, by emailing parishoffice@stmonicami.org, or by filling out the general contact form at the bottom of this page.

Holiday Office Hours

In observance of the Christmas Holiday, the parish office will be closed from December 23-26.

The parish office will also be closed on January 1 for New Year’s Day. 

Scam Email Warning

The parish staff wants to warn parishioners that someone has been sending emails pretending to be Father Nagel, parish staff members, and our former pastor, Father Freitag. Scam emails typically say that Father is "in need of help" ask if "you are available for an errand" or just asks the recipient to "please respond concerning a sensitive matter". These emails (or texts) are a scam and should be deleted whenever they are received. Legitimate emails from parish staff members will always be sent from an email address ending with "@stmonicami.org". If you have any questions, feel free to contact the parish office using the information above.

General Parish Contact Form

Not sure which member of our staff to contact? Need help with something that you don't see listed? Send a message to our parish office by completing the simple contact form below.