The 91789 ZIP code in Walnut has 1 verified Montessori school and 2 Montessori-friendly family resources. Full profile below, plus nearby ZIP codes with more options — the closest is listed below. Every school shown is verified as an authentic Montessori program. Updated June 2026.
3
Listings here
1
Verified schools
5.0 ⭐
Avg rating
June 2026
Updated
Walnut International Montessori Preschool is a Montessori school located in Walnut, California.
View Walnut International Montessori Preschool full profile →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.