Diamond Bar Montessori Academy · Infant Center, Diamond Bar
Diamond Bar Montessori Academy is a licensed child care center in Diamond Bar, CA, licensed for up to 24 children and serving infants and toddlers. It has held its California license since 2016. Since February 2021, state licensing staff have inspected it 3 times. No visit in that period produced a citation, which puts it among the 34% of ranked California centers with no citations. Measured by weighted citations per inspection, it is tied for #1 of 19 centers in Diamond Bar and is tied for the best record statewide (no citations).
Inspection record
Every state visit
Citations, newest first
About this center
Other licenses at this address
Common questions
Does Diamond Bar Montessori Academy take infants?
Yes. It is licensed by California as an infant center.
Has Diamond Bar Montessori Academy had any serious violations?
No Type A citations since 2021.
How does Diamond Bar Montessori Academy compare with other daycares in Diamond Bar?
It is tied for #1 of 19 centers in Diamond Bar by weighted citations per inspection, and is tied for the best record statewide (no citations).
When was Diamond Bar Montessori Academy last inspected?
Oct 17, 2025. No citations were issued during that visit.
How much does Diamond Bar Montessori Academy cost?
California does not publish individual centers’ prices, so ask Diamond Bar Montessori Academy for its current tuition. For comparison, the median full-time price at licensed centers in Los Angeles County, which includes Diamond Bar, was $1,555 a month for infants (about $1,960 today) in the state’s 2021 Regional Market Rate Survey.
Who runs Diamond Bar Montessori Academy?
The licensee is Sunland Diamond Bar Montesori INC., and the administrator listed with the state is Hissanka S. Gunasekara.
Licensed centers nearby
23555 Palomino Dr, Diamond Bar · under 0.1 mi away · 118 spotsAbout typicalDiamond Bar Community Preschool
400 South Rancheria Road, Diamond Bar · 0.3 mi away · 36 spotsAbout typicalLimai Montessori Academy
23377 Golden Springs Drive, Diamond Bar · 0.4 mi away · 102 spotsNo citationsGolden Springs Child Development Center, Rm. 29
245 S. Ballena Dr., Diamond Bar · 0.5 mi away · 15 spotsAbout typicalMt. Calvary Lutheran Preschool & Day Care Center
23300 East Golden Springs Dr., Diamond Bar · ZIP 91765 away · 72 spotsMore citations than mostYMCA Early Learning Center
22600 Sunset Crossing Road, Diamond Bar · ZIP 91765 away · 63 spotsAmong the most cited
Citations are quoted from California Department of Social Services inspection and complaint reports. Type A citations are the state’s most serious category (an immediate risk to children’s health, safety or personal rights); Type B citations are a potential risk. A citation is a finding about one rule, not a judgment about a center overall. Complaint allegations appear here only when the state substantiated them.
To read the full state reports, search facility number 198019053 on the California Care Facility Search. Data refreshed Oct 3, 2026.
Comparing centers? See how to choose a daycare: 30 questions to ask and a printable checklist.