Montessori Schools in 98040, Mercer Island (2026)

    The 98040 ZIP code in Mercer Island has 2 verified Montessori schools and 2 Montessori-friendly family resources. Schools are ranked by Google rating and review volume using a Bayesian average. Every school shown is verified as an authentic Montessori program. Updated June 2026.

    4

    Listings here

    2

    Verified schools

    5.0 ⭐

    Avg rating

    June 2026

    Updated

    Montessori Schools in 98040, Mercer Island

    1. 1

      #1 LooffAn Montessori （Mercer island）

      5.0 (8 reviews) 4591 E Mercer Way, Mercer Island(206) 658-3656

      LooffAn Montessori （Mercer island） is a Montessori school located in Mercer Island, Washington.

      View LooffAn Montessori （Mercer island） full profile →
    2. 2

      #2 Early World Montessori

      5.0 (3 reviews) 3027 80th Ave SE, Mercer Island(206) 232-2400

      Early World Montessori is a Montessori school located in Mercer Island, Washington.

      View Early World Montessori full profile →

    Explore wider

    All of Mercer Island(4)

    Ranking methodology: schools are ordered by a Bayesian average — score = (v·R + 10·C) / (v + 10), where R is the school's Google rating, v its review count, and C = 4.7 the review-weighted average rating of all verified Montessori schools on MontessoriCity. This prevents a school with one 5-star review from outranking consistently well-reviewed schools. Only schools verified as authentic Montessori programs are ranked.