Montgomery County
Colonial School District
Academic outcomes (2024-25)
% proficient or advanced, official PDE district files. Gold tick = state average.
The true tax picture
- School millage (2025-26)
- 26.495 mills
- Effective school tax (of market value)
- 0.81%/yr
- Typical total (county + muni + school)
- 1.11%/yr
- On a $450,000 purchase
- ≈ $5,017/yr
- Median asking (47 active)
- $599,000
Rates assume an assessment at Montgomery County's current Common Level Ratio (30.76%). PA does not reassess on sale. Exact math for any price: the calculator.
Tax bill by municipality
| Municipality | Muni millage | Total millage | Effective rate | Tax on $450,000 |
|---|---|---|---|---|
| Whitemarsh Township | 2.3633 mills | 34.81 mills | 1.07% | ≈ $4,818/yr |
| Plymouth Township | 3.8 mills | 36.25 mills | 1.11% | ≈ $5,017/yr |
| Conshohocken Borough | 4.5 mills | 36.95 mills | 1.14% | ≈ $5,114/yr |
Browse homes in Colonial
Common questions
Is Colonial a good school district?
Colonial scores 79.0 of 100 on the NookLocal Academic Index — #3 of 62 districts serving Bucks, Montgomery, Lehigh, and Berks counties. Components (official 2025 PDE data): PSSA proficiency 69% (state ~45%), Keystone proficiency 80%, graduation rate 97.3% (state 89.1%). The index measures outcomes, not school effectiveness in isolation.
What are property taxes in Colonial School District?
The district levies 26.495 mills (2025-26) on Montgomery County's assessment base — an effective school tax of about 0.81% of market value at the current Common Level Ratio. With county and typical municipal millage, the total runs about 1.11% — roughly $5,017 per year on a $450,000 purchase. Exact bills vary by municipality (1.07%–1.14% across 3) and by the home's actual assessment.
What towns are in Colonial School District?
NookLocal-covered towns served by Colonial: Conshohocken. The taxing municipalities are Whitemarsh Township, Plymouth Township, Conshohocken Borough. A specific home's district is shown on every NookLocal listing.
Colonial vs. Wissahickon: how do they compare?
Academically: Colonial 79.0 vs. Wissahickon 77.6 on the Academic Index. On taxes: 1.11% vs. 1.08% of home value per year — about $5,017 vs. $4,871 on a $450,000 purchase. Full comparison on the school district value matrix.
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Track Colonial rates and inventory
New school budgets and the new Common Level Ratio land July 1 — every district's true rate moves. We send the re-rank, plus weekly new listings and price cuts.
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Academic data: PA Department of Education district-level files (2024-25). Tax data: county assessment offices and STEB. Estimates only — verify with the district and county before transacting. Full methodology on the value matrix.