Montessori School of Sonoma · Infant Center, Sonoma
Montessori School of Sonoma is a licensed child care center in Sonoma, CA, licensed for up to 12 children and serving infants and toddlers. It has held its California license since 1999. Since February 2021, state licensing staff have inspected it twice. The state issued 2 citations, none of them Type A. None of them came in the last 12 months. Measured by weighted citations per inspection, it is #9 of 11 centers in Sonoma and has more citations per inspection than 60% of California licensed centers.
Inspection record
Every state visit
What inspectors cited most
Citations, newest first
Based on record review, the licensee did not comply with the section cited above in which 8 children files (C1 - C8) did not have sleep logs, which poses/posed a potential health, safety or personal rights risk to persons in care.
Based on Licensee's statement she acknowledged two staff did not have their current mandated reporter training certificates. The licensee did not comply with the section cited which poses/posed a potential health, safety or personal rights risk to persons in care.
About this center
Other licenses at this address
Common questions
Does Montessori School of Sonoma take infants?
Yes. It is licensed by California as an infant center.
Has Montessori School of Sonoma had any serious violations?
No Type A citations since 2021. It has 2 Type B citations, listed above.
How does Montessori School of Sonoma compare with other daycares in Sonoma?
It is #9 of 11 centers in Sonoma by weighted citations per inspection, and has more citations per inspection than 60% of California licensed centers with enough inspection history to compare.
When was Montessori School of Sonoma last inspected?
Oct 28, 2024. The state issued at least one citation during that visit.
How much does Montessori School of Sonoma cost?
California does not publish individual centers’ prices, so ask Montessori School of Sonoma for its current tuition. For comparison, the median full-time price at licensed centers in Sonoma County, which includes Sonoma, was $1,610 a month for infants (about $2,030 today) in the state’s 2021 Regional Market Rate Survey.
Who runs Montessori School of Sonoma?
The licensee is Cathy Vaughn, and the administrator listed with the state is Cathy Vaughn.
Licensed centers nearby
19675 8th Street East, Sonoma · under 0.1 mi away · 60 spots About typical North Bay Children's Center - Macarthur Park
343 E Macarthur St, Sonoma · 0.9 mi away · 32 spots No citations Crescent Montessori School
276 E Napa Street #203, Sonoma · 1.0 mi away · 20 spots Too few inspections to compare Sonoma Preschool Academy
275 East Spain Street, Sonoma · 1.0 mi away · 45 spots More citations than most Sunshine Nursery School
109 Patten Street, Sonoma · 1.1 mi away · 105 spots More citations than most Lpj Kids, LLC (DBA Le Petit Jardin )
542 1st Street East, Sonoma · 1.2 mi away · 30 spots No citations
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 493002990 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.