Island Square offers vibrant studio, 1-, and 2-bedroom apartments for rent in a desirable Mercer Island location. Residents enjoy essential amenities including a 24-hour fitness center, business center, and two-tier waterfall spa that’s open year-round. Each uniquely designed floor plan features modern, energy-efficient appliances and large windows. Plus, you don't have to go far to take advantage of Mercer Island's best restaurants, shops, and outdoor recreation areas.