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Child care center 

Mt Si Arbor Montessori School

249 Main Ave S Suite 101, North Bend, WA 98045
licensed capacity
25
open each week
5 days
a week, county median
$390
year first licensed
2021

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Licensed by the state

About

About Mt Si Arbor Montessori School

Mt Si Arbor Montessori School is a licensed child care center in North Bend, Washington. The state has licensed it since September 9, 2021, for up to 25 children, serving preschoolers and school-age children.

It is open Monday to Friday, 7:30 AM to 5:30 PM. It describes a Montessori approach, with preschool and toddler care.

Washington State Department of Children, Youth, and Families publishes its inspection reports on its own website; the link is in the inspections section below.

MontessoriSchool-age

Ages served: preschoolers and school-age children

From the state license. Ages it lists: 15 months to 6 years of age
Ask when you call: rates, current openings, staff-to-child ratio, teacher qualifications and whether it accepts child care subsidies.
Type
Child care center
Ages
Preschoolers and school-age children
Hours today
Closed today
Licensed capacity
25 children

Hours

Hours

Monday7:30 AM to 5:30 PM
Tuesday7:30 AM to 5:30 PM
Wednesday7:30 AM to 5:30 PM
Thursday7:30 AM to 5:30 PM
Friday7:30 AM to 5:30 PM
SaturdayNot listed
SundayTodayNot listed

Programs

Programs and care

AgesPreschoolers and school-age childrenFrom the state license. It lists: 15 months to 6 years of age
ProgramsPreschool and toddler care
ApproachMontessori
SafetyOutdoor playground
MoreFounded 2018 (Arbor purchased Mountain Valley Montessori and began operating as Mt. Si Arbor Montessori)
Licensed capacity25 childrenFrom the state license
A daycare without an item may still offer it; ask.

Cost

Tuition and costs

Mt Si Arbor Montessori School has not listed its tuition. For comparison, full-time preschool care at a child care center in King County has a median price of $390 a week (U.S. Department of Labor, 2022).

Ask the daycare for its ratesIt has not listed its tuition. The county medians below are a starting point.
King County medians, full time, per week

Infant

Center$478
Home daycare$347

Toddler

Center$390
Home daycare$310

Preschool

Center$390
Home daycare$310

School age

Center$289
Home daycare$245

County median full-time prices at centers and home daycares, U.S. Department of Labor, National Database of Childcare Prices, 2022 (the latest year). Not this daycare's rates; prices have risen since.

State record

Inspection reports for Mt Si Arbor Montessori School

Washington State Department of Children, Youth, and Families publishes inspection reports on its own website; we have not added them to this page yet. Use the link below to read them there.

License

Status
Licensed and operating
License type
Licensed child care center
Capacity
25 children
Ages
Preschoolers and school-age children
First licensed
2021
License number
#1906214
See the state's record

Inspections

Washington State Department of Children, Youth, and Families publishes inspection reports on its own website; we have not added them to this page yet. Use the link below to read them there.

Washington publishes its inspection reports on its own site. Read them there.

Copied from Washington State Department of Children, Youth, and Families on October 2, 2026. Rule wording, severity and dates are the state's.

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FAQ

Questions about Mt Si Arbor Montessori School

Is Mt Si Arbor Montessori School licensed?

Yes. Washington State Department of Children, Youth, and Families lists it as licensed and operating, first licensed September 9, 2021.

Does Mt Si Arbor Montessori School have inspection violations?

Washington State Department of Children, Youth, and Families publishes inspection reports on its own website; we have not added them to this page yet. Use the link below to read them there.

How many children can Mt Si Arbor Montessori School care for?

25, the licensed capacity on the state record. It is licensed to serve preschoolers and school-age children.

What are Mt Si Arbor Montessori School's hours?

Monday to Friday, 7:30 AM to 5:30 PM. Holiday hours can differ.

How much does Mt Si Arbor Montessori School cost?

It has not listed its tuition. Call (425) 888-3369 to ask.

What is Mt Si Arbor Montessori School's phone number?

(425) 888-3369.

Where is Mt Si Arbor Montessori School?

249 Main Ave S Suite 101, North Bend, WA 98045. The nearest other daycare we list is Mt Si Arbor Montessori School 1, under 0.1 miles away.

Sources: Washington State Department of Children, Youth, and Families (license) · U.S. Department of Labor, 2022 (county prices).