Child care center and infant center · Sonoma, California
Montessori School of Sonoma
Sonoma · Licensed for 62 children · licensed since 1984
Preschools aren’t tested, scored or ranked.
Licensed since 1984. No serious violations in 4 state visits to its center licence.
Common questions
Is it licensed?
Yes: an active child care center licence, no. 490105963, first issued October 25, 1984. It holds 2 licences in all. Evidence ↓
Has the state found problems?
4 state visits on file for licence 490105963, with no Type A finding and 1 Type B finding across them. Type A means an immediate risk to health or safety. Evidence ↓
How many children are there?
Up to 62 children at once under the licences. That’s the state’s maximum, not current enrollment; ask how many are enrolled and their ages. Evidence ↓
More questions (3)
What does it cost?
We have no source for its prices. Ask for the weekly or monthly rate and what it includes. Evidence ↓
When could my child start free TK instead?
The September after they turn 4: TK is free at public elementary schools for children who turn 4 by September 1. 4 public and charter campuses in Sonoma have a TK class. Evidence ↓
How do I visit?
Call (707) 996-2420 and ask to visit during the day, while children are there. Evidence ↓
State licensing
What does the state record about Montessori School of Sonoma?
Two licences: a child care center for 50 children and an infant center for 12.
California Community Care Licensing
Child Care Center, licence 490105963
Licensed for 50 children since 1984: 4 state visits on file, no Type A finding. Type A means an immediate risk to health or safety.
- StatusActive
- Licensed capacity50 childrenThe most allowed at once, not current openings or group size
- First licensedOctober 25, 1984When this licence was issued
- State visits on file4Latest recorded visit: October 28, 2024
- Type A findings0Across 4 state visits
- Type B findings1Across 4 state visits. CCLD reports findings as totals, not tied to a visit
- Complaint visits0Investigations; the record doesn’t show whether complaints were upheld
- Citation codes listed1596.8662(b)(1)A code doesn’t say when a finding happened or whether it was corrected
Source: California Department of Social Services, Community Care Licensing · synced August 13, 2026 · Full state record for licence 490105963 ↗
Infant Center, licence 493002990
Licensed for 12 children since 1999: 2 state visits on file, no Type A finding. Type A means an immediate risk to health or safety.
- StatusActive
- Licensed capacity12 children
- First licensedSeptember 30, 1999When this licence was issued
- State visits on file2Latest recorded visit: October 28, 2024
- Type A findings0Across 2 state visits
- Type B findings2Across 2 state visits. CCLD reports findings as totals, not tied to a visit
- Complaint visits0Investigations; the record doesn’t show whether complaints were upheld
- Citation codes listed101429(a)(2)(B), 1596.8662(b)(1)A code doesn’t say when a finding happened or whether it was corrected
Source: California Department of Social Services, Community Care Licensing · synced August 13, 2026 · Full state record for licence 493002990 ↗
Licensing records describe regulatory oversight, not teaching or daily experience. Check the state’s current inspection records ↗ (opens in a new tab)
Ask: When was your last state licensing visit, and what did it find?
Visit dates and visit types, licence 490105963
Dates are listed as supplied by CCLD. Finding totals above are not attached to individual visits.
- Inspection visits
- 2
- Other visits
- 2
Visit dates and visit types, licence 493002990
Dates are listed as supplied by CCLD. Finding totals above are not attached to individual visits.
- Inspection visits
- 2
- Other visits
- 0
TK and kindergarten
When could free TK start instead?
California’s public transitional kindergarten (TK) is free for children who turn 4 by September 1.
California’s TK rule
- Prestwood Elementary0.9 mi · Sonoma Valley Unified
Each percentile compares a school with California schools at its own level. Distance isn’t an attendance boundary; check TK and kindergarten entry with the district.
Next steps
How do I visit Montessori School of Sonoma, and what should I ask?
- When was your last state licensing visit, and what did it find?
- Licensed for 62 children across two licences (50 child care, 12 infant): how many share your child’s room, and with how many adults?
- Which ages do you take, and how does a new child settle in?
- What are the daily hours and closure dates, and is there care before or after?
- What does a year cost in total, and when could our child start?
On a visit, watch how adults talk with children, how play and rest are set up, and how staff handle a hard morning.
- Address
- 19675 8th Street East, Sonoma 95476
- Phone
- (707) 996-2420
- Licensed as
- Child Care Center + Infant Center
- Licence numbers
- 490105963 · 493002990
Source recordsstate licensing
The inspection source covers child care centers, not family child care homes. Check each license’s sync date and the current state reports, then confirm routines and enrollment with the program.
Data source: California Community Care Licensing Division (CCLD) · Licensing record synced August 13, 2026
Inspection reports ↗ · Parent reviews on Winnie ↗ · Pre-K vs TK vs preschool in California: a 2026 parent’s guide · Montessori, Waldorf and Reggio · Preschool cost guide