About Us Nestled in the North Puget Sound region between Everett and Lynnwood, COGIR of Mill Creek Senior Living is just 20 miles from the city of Seattle. Residents and families can choose from Independent Living or Assisted Living options, based on the resident’s lifestyle. Regardless of lifestyle, residents will enjoy our premium amenities, professional care services, and well-curated activities and outings. Delicious high-quality meals are served throughout the day and attentive staff are ready with a smile for any need. And COGIR of Mill Creek Senior Living is just a few blocks from the majestic Mill Creek Nature Private Reserve.