Daycares in Diamond Bar, California
Data Freshness & Provenance
Inspection coverage
29 of 38 tracked providers have inspection history
Active providers
29 providers appear active in this market
Last refreshed
April 3, 2026
Latest inspection
February 27, 2026
Provenance
California licensing records, inspections, and DaycareCheck scoring
City Snapshot
Diamond Bar currently has 38 tracked providers. 29 have inspection history, 29 appear active, and 66% of the market holds an A or B grade. The latest inspection in the dataset is February 27, 2026.
Updated April 3, 2026 from California licensing records, inspections, and DaycareCheck scoring.
NGUYEN FAMILY CHILD CARE
DIAMOND BAR, CA 91765
MAGNOLIA PROGRESSIVE MONTESSORI
3201 S. BREA CANYON ROAD
YMCA ARMSTRONG SCHOOL AGE
22750 BEAVERHEAD
LIMAI MONTESSORI ACADEMY
23377 GOLDEN SPRINGS DRIVE
YMCA-GOLDEN SPRINGS SADC
245 S. BALLENA
JOHNSON FAMILY CHILD CARE
DIAMOND BAR, CA 91765
TOWNE & COUNTY PRESCHOOL & INFANT CENTER AT AQMD
21805 E. COPLEY DR.
MT. CALVARY LUTHERAN PRESCHOOL AND DAY CARE
23300 GOLDEN SPRINGS DR
DIAMOND BAR COMMUNITY PRESCHOOL
400 SOUTH RANCHERIA ROAD
PAN FAMILY CHILD CARE
DIAMOND BAR, CA 91765
DIAMOND POINT CHILD DEVELOPMENT CENTER, ROOM 2
24150 SUNSET CROSSING ROAD
LA PETITE ACADEMY, INC.
722 S. GRAND AVENUE
HURTADO FAMILY CHILD CARE
DIAMOND BAR, CA 91765
WANG FAMILY CHILD CARE
DIAMOND BAR, CA 91765
MT. CALVARY LUTHERAN PRESCHOOL & DAY CARE CENTER
23300 EAST GOLDEN SPRINGS DR.
CHIU FAMILY CHILD CARE
DIAMOND BAR, CA 91765
KIDDIE ACADEMY OF DIAMOND BAR
21385 COLD SPRING LANE
WIJEWARDANE FAMILY DAY CARE
DIAMOND BAR, CA 91765
TOWNE & COUNTRY PRESCHOOL & INFANT CENTER AT AQMD
21805 E. COPLEY DR.
YMCA EARLY LEARNING CENTER
22600 SUNSET CROSSING RD
Home Daycares in Diamond Bar
Browse 12 home-based providers.
Childcare Cost Calculator
Compare costs in your area by age group and care type.
How to Choose a Safe Daycare
A parent's guide to evaluating childcare.
What the daycare market looks like in Diamond Bar
Diamond Bar currently has 38 daycares in our directory. 66% of the market earns an A or B safety grade. Use this page to compare inspection history, provider mix, and local cost context before you start touring.
66%
A or B safety grades
26
Center-based providers
0
Accredited or Head Start providers
$1,447/mo
Infant center cost in LOS ANGELES
Market Notes
The current top-scoring provider in this city is LIMAI MONTESSORI ACADEMY with a A grade and a 100.0 score.
Common provider types in Diamond Bar include DAY CARE CENTER, FAMILY DAY CARE HOME, INFANT CENTER.
The average provider in this market has 3.2 recorded violations, while 20 providers currently show none in the data we track.
Local cost and care context
LOS ANGELES accounts for the largest share of providers we track in Diamond Bar, so its pricing is the best local benchmark on this page.
Infant Center
$1,447/mo
Preschool Center
$1,045/mo
Toddler Home Daycare
$4/mo
California regulation snapshot
Inspection frequency
At least once every five years for centers with a clean compliance record. Random and unannounced visits occur throughout the licensing period. Complaint-driven inspections happen at any time.
Background checks
All staff, volunteers, and household members age 18 and older must clear a criminal background check through the California Department of Justice and the FBI. This includes fingerprint-based Live Scan checks. Subsequent arrest notifications are monitored continuously.
Parent rights
Parents have the right to visit their child's facility unannounced during operating hours. Licensing inspection reports and substantiated complaint records are public and available through the CCLD website.
How to use this page
Safety grades are derived from official state inspection records, not reviews or sponsored placement.
Repeated and severe violations weigh more heavily than isolated paperwork issues.
Filters are best used after you understand the full city baseline on the default ranking view.
Frequently asked questions about daycare in Diamond Bar
How does DaycareCheck rank daycares in Diamond Bar?
We rank providers in Diamond Bar using official state inspection records. Health, safety, staffing, and compliance findings are converted into a composite score, and severe or repeated violations hurt more than isolated minor issues.
What should parents compare first when choosing daycare in Diamond Bar?
25 of the 38 providers in this market currently hold an A or B safety grade, but grade alone is not enough. Start with higher-scoring providers, then compare the full inspection timeline, repeated violations, staffing patterns, and whether the program type actually fits your child and schedule.
Are there home daycare or Head Start options in Diamond Bar?
Diamond Bar currently shows 12 home-based providers and 0 Head Start sites in the directory. California rules still apply: At least once every five years for centers with a clean compliance record. Random and unannounced visits occur throughout the licensing period. Complaint-driven inspections happen at any time.