Montgomery County mortgage calculator
Montgomery County sits directly northwest of Philadelphia and mixes established inner suburbs with pricier outer townships, so payments vary widely depending on exactly where you buy.
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Montgomery County mortgage inputs
Enter your gross monthly income above to see an affordability read (based on the standard 28% front-end DTI guideline).
Loan amount: $320,000
Starts from Pennsylvania's 1.26% average effective property-tax rate. Your rate in Montgomery County may differ — edit any field for your exact numbers.
Buying a home in Montgomery County
As elsewhere in Pennsylvania, the school-district portion of the property-tax bill is usually the biggest, and it varies meaningfully across the many districts inside Montgomery County. When you compare two homes here, compare their full tax bills — not just price — because the district line between them can change the monthly payment more than a small difference in list price.
As a worked example, a $400,000 home with 20% down and a 6.55% 30-year fixed rate works out to about $2,033 a month in principal and interest, plus roughly $420 for property tax at Pennsylvania's 1.26% average — a core cost near $2,453 before insurance and any HOA. Enter prices you're actually seeing around Norristown to get your real figure.
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Frequently asked questions
How much is a monthly mortgage payment in Montgomery County?
It depends on the home price, your rate, and your down payment. As an example, a $400,000 home with 20% down at 6.55% over 30 years is about $2,033 in principal and interest, plus roughly $420 a month for Pennsylvania's 1.26% average property tax — before insurance and any HOA or maintenance charges.
Does this calculator include Montgomery County property taxes?
Yes — it starts from Pennsylvania's statewide average effective property-tax rate of 1.26%. Local rates in Montgomery County can differ, so check your county assessor and adjust the property-tax field for your exact number.
Does the calculator store my information?
No. Everything is calculated in your browser — no account, no email, no lead form, nothing saved or sent to a server.