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Tuiton & Fees

Investing in Education

Tuition at St. Christopher’s By‑the‑Sea is more than a number, it’s an investment in independence, confidence, and joy in learning. Flexible plans support families while sustaining the excellence of our Montessori program from Toddlers to Upper Elementary.

5,000

Registration Deposit

10% Parish Discount

(Eligibility required)

Sibling
discounts

Insurance

Plan A optional · Plan B/C included

Tuition and investment information for families at St. Christopher's By-the-Sea Montessori School, Key Biscayne, FL

Payment plans

Switch between options to compare tuition by program.
Amounts reflect the 2026–2027 school year.

Deposit + fees:

Mar 1, 2026

Tuition in full:

Apr 1, 2026

Insurance:

Optional (not included)

Toddler Half Day$20,000 (**$292.50)
Toddler Full Day$22,000 (**$331.50)
Pre-K 3$22,000 (**$331.50)
Pre-K 4$22,000 (**$331.50)
Kindergarten$23,500 (**$360.75)
Lower Elementary$26,750 (**$424.13)
Upper Elementary$27,500 (**$438.75)

** Plan A: Tuition Insurance is optional (not included). If you opt out, tuition funds are not refundable.

Deposit + fees:

Mar 1, 2026

Tuition in full:

Apr 1, 2026

Insurance:

Optional (not included)

Toddler Half Day$20,904.20 (*$304.20)
Toddler Full Day$23,004.37 (*$344.37)
Pre-K 3$23,004.37 (*$344.37)
Pre-K 4$23,004.37 (*$344.37)
Kindergarten$24,576.50 (*$374.50)
Lower Elementary$27,991.76 (*$439.76)
Upper Elementary$28,779.84 (*$454.84)

*Tuition Insurance is required for all Plan B and Plan C payment plans. This payment will be included in the total tuition cost.

Deposit + fees:

Mar 1, 2026

Tuition in full:

Apr 1, 2026

Insurance:

Optional (not included)

Toddler Half Day$21,524.25 (*$316.25)
Toddler Full Day$23,697.63 (*$357.63)
Pre-K 3$23,697.63 (*$357.63)
Pre-K 4$23,697.63 (*$357.63)
Kindergarten$25,319.65 (*$388.65)
Lower Elementary$28,890.96 (*$456.96)
Upper Elementary$29,646.41 (*$471.41)

*Tuition Insurance is required for all Plan B and Plan C payment plans. This payment will be included in the total tuition cost.

"Montessori Toddler Program Key Biscayne" book cover - recommended Montessori reading list at St. Christopher's By-the-Sea Montessori School

Registration deposit

$5,000 due upon enrollment (applied toward tuition).

Discounts

Parish Discount — 10% Eligibility :

You are required to be a regular in worship and have made and completed a pledge to the mission and ministry of the Parish in the previous calendar year (2025).

Sibling discounts

  • Second child enrolled: $300
  • Three or more children enrolled: $525

Frequently Asked Questions

Can my child stay in school for after school activities or sports?

St Christopher’s offers an afterschool enrichment program with several different activities to choose from every semester.

Students going into the Early Childhood Program need to be fully potty-trained (PK-3 and above)

Is my deposit included in tuition?

Yes. The deposit is applied toward your tuition fees

You will receive an invoice with the remaining balance and payment due dates. Payments can be made by bank transfer, credit card or check

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