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5 Preschools in Diamond Bar, California

Find the best preschools in Diamond Bar, California. Browse 5 options, compare ratings, and choose the right program for your child.

Best Preschools in Diamond Bar

Ranked using a weighted score that combines Google rating with the number of parent reviews — preschools with more reviews rank higher than those with a high rating but few reviews. Last updated: March 2026.

  1. 1
    Diamond Canyon Christian Preschool
    4.72 score
    5(13)

    3338 Diamond Canyon Rd., Diamond Bar, CA · Capacity: 100 children

    Parents consistently praise Diamond Canyon Christian Preschool (also referred to as Landmark Christian Preschool) for its nurturing, faith-based environment and dedicated teachers who genuinely care for students. Families report strong academic preparation, with children advancing ahead academically and developing a solid foundation for elementary school success.

    Caring and nurturing teachersstrong academic curriculumfaith-based Christian environment with weekly chapelSTEAM/STREAM programming
  2. 2
    Mt. Calvary Lutheran Preschool & Day Care Center
    4.54 score
    4.7(17)

    23300 East Golden Springs Dr., Diamond Bar, CA · Capacity: 72 children

    Mt. Calvary Lutheran Preschool & Day Care Center receives consistently high praise from parents, with all reviews rated 5/5 stars. Parents highlight the Christian-based environment, caring staff, small community feel, and strong academic preparation. Children are reported to enjoy attending and benefit from both educational rigor and spiritual grounding.

    Christian-based curriculumcaring and kind staffsmall intimate communitystrong academic preparation
  3. 3
    Diamond Bar Community Preschool
    4 score
    5

    400 South Rancheria Road, Diamond Bar, CA · Capacity: 36 children

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🎨 Preschools 5🌱 Montessori 5
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Preschools in Diamond Bar, California

Diamond Bar has 5 preschool programs designed to prepare children ages 3-5 for kindergarten. These programs focus on early literacy, social skills, and structured learning in a nurturing environment.

When choosing a preschool in Diamond Bar, consider visiting facilities in person, checking their licensing status, and asking about staff-to-child ratios, daily routines, and safety policies.

All Preschools in Diamond Bar

Showing 5 results

Diamond Bar Community Preschool
Child Daycare & Preschools
5
Address
400 South Rancheria Road, Diamond Bar, CA
Phone
(909) 861-2260
Diamond Canyon Christian Preschool
Child Daycare & Preschools
5

Parents consistently praise Diamond Canyon Christian Preschool (also referred to as Landmark Christian Preschool) for its nurturing, faith-based environment and dedicated teachers who genuinely care for students. Families report strong academic preparation, with children advancing ahead academically and developing a solid foundation for elementary school success.

Caring and nurturing teachersstrong academic curriculumfaith-based Christian environment with weekly chapel
Address
3338 Diamond Canyon Rd., Diamond Bar, CA
Phone
(909) 468-9299
Mt. Calvary Lutheran Preschool & Day Care Center
Child Daycare & Preschools
4.7

Mt. Calvary Lutheran Preschool & Day Care Center receives consistently high praise from parents, with all reviews rated 5/5 stars. Parents highlight the Christian-based environment, caring staff, small community feel, and strong academic preparation. Children are reported to enjoy attending and benefit from both educational rigor and spiritual grounding.

Christian-based curriculumcaring and kind staffsmall intimate community
Address
23300 East Golden Springs Dr., Diamond Bar, CA
Phone
(909) 861-2740
Towne & County Preschool & Infant Center At Aqmd
Child Daycare & Preschools
Address
21805 E. Copley Dr., Diamond Bar, CA
Phone
(909) 861-9025
Towne & Country Preschool & Infant Center At Aqmd
Child Daycare & Preschools
Address
21805 E. Copley Dr., Diamond Bar, CA
Phone
(909) 861-9025

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Frequently asked questions

There are 5 preschools in Diamond Bar, California. Browse our directory to compare programs, read parent reviews, and find the best option for your child.
Most preschool programs in Diamond Bar accept children between ages 2.5 and 5. Many children start at age 3 or 4, about one to two years before kindergarten. Look for signs of readiness such as being comfortable away from parents, ability to follow simple instructions, and interest in playing with other children.
While both provide childcare, preschools in Diamond Bar typically focus more on structured educational activities to prepare children for kindergarten. Preschool programs often run half-day or school-year schedules, while daycare centers offer full-day, year-round care. Many facilities combine both, offering preschool curriculum within a full-day daycare setting.
Preschool costs in Diamond Bar typically range from $600 to $1,500 per month for full-time programs. Half-day programs are usually less expensive. Some preschools offer financial aid, and California may have state-funded pre-K programs for qualifying families. Contact individual facilities for current tuition rates.
When selecting a preschool in Diamond Bar, consider:
  • Visit the facility in person to observe the environment
  • Ask about teacher qualifications and experience
  • Check licensing status with California's regulatory agency
  • Review the curriculum and daily schedule
  • Read parent reviews for firsthand experiences
  • Compare staff-to-child ratios across facilities