Middlesex County Mortgage Calculator
On the Middlesex County median home price of $687,000, a 20%-down, 30-year loan at today's 6.47% rate runs about $4,188/month — $3,463 principal & interest, $601 property tax at Middlesex County's 1.05% effective rate, and $124 homeowners insurance. That is about $29/month more than the Massachusetts state-average tax rate would cost on the same home. Enter your own price and down payment below.
$4,188 /mo
P&I: $3,463 · Tax: $601 · Insurance: $124
Loan amount: $549,600 · Total interest: $697,083
Yearly amortization schedule
| Year | Interest | Principal | PMI | Balance |
|---|---|---|---|---|
| 1 | $35,378 | $6,178 | — | $543,422 |
| 2 | $34,966 | $6,590 | — | $536,832 |
| 3 | $34,527 | $7,029 | — | $529,803 |
| 4 | $34,059 | $7,498 | — | $522,305 |
| 5 | $33,559 | $7,997 | — | $514,308 |
| 6 | $33,026 | $8,530 | — | $505,778 |
| 7 | $32,457 | $9,099 | — | $496,679 |
| 8 | $31,851 | $9,705 | — | $486,973 |
| 9 | $31,204 | $10,352 | — | $476,621 |
| 10 | $30,514 | $11,042 | — | $465,578 |
| 11 | $29,778 | $11,778 | — | $453,800 |
| 12 | $28,993 | $12,563 | — | $441,237 |
| 13 | $28,155 | $13,401 | — | $427,836 |
| 14 | $27,262 | $14,294 | — | $413,542 |
| 15 | $26,309 | $15,247 | — | $398,295 |
| 16 | $25,293 | $16,263 | — | $382,032 |
| 17 | $24,209 | $17,347 | — | $364,685 |
| 18 | $23,053 | $18,503 | — | $346,181 |
| 19 | $21,819 | $19,737 | — | $326,445 |
| 20 | $20,504 | $21,052 | — | $305,392 |
| 21 | $19,101 | $22,455 | — | $282,937 |
| 22 | $17,604 | $23,952 | — | $258,985 |
| 23 | $16,008 | $25,549 | — | $233,436 |
| 24 | $14,305 | $27,251 | — | $206,185 |
| 25 | $12,488 | $29,068 | — | $177,117 |
| 26 | $10,551 | $31,005 | — | $146,112 |
| 27 | $8,484 | $33,072 | — | $113,040 |
| 28 | $6,280 | $35,276 | — | $77,763 |
| 29 | $3,928 | $37,628 | — | $40,136 |
| 30 | $1,420 | $40,136 | — | $0 |
Rates: Freddie Mac PMMS (wk 2026-06-18). Property tax: Tax Foundation. Insurance: Insurance.com. PMI applies when your down payment is under 20% (LTV > 80%). You can request cancellation at 80% LTV; the servicer must auto-terminate it at 78% (Homeowners Protection Act). How we calculate →
Monthly payment breakdown for a Middlesex County home
At the Middlesex County median home price of $687,000, a conventional 30-year loan at 6.47% with 20% down splits into: $3,463 principal & interest, $601 property tax, and $124 homeowners insurance — a total PITI of $4,188/month.
The property tax line uses Middlesex County's real effective rate of 1.05% (median tax bill of $7,240 on a median home value of $687,200, US Census ACS), not a generic national average — so this figure reflects what Middlesex County actually charges, before any local exemption.
Middlesex County vs the Massachusetts state average property tax rate
Middlesex County's 1.05% effective property tax rate is above Massachusetts's 1% state average. On the same $687,000 home, that difference works out to $29/month more in the tax line of the mortgage payment compared with paying the Massachusetts average rate instead of Middlesex County's.
Property tax is set locally — by the county, city and school district — so the state average is only a rough guide. Two otherwise identical Massachusetts homes in different counties can carry meaningfully different monthly payments purely because of where the tax rate lands.
What the Middlesex County median buys vs a $400,000 national budget
A $400,000 home taxed at Middlesex County's 1.05% rate and insured at Massachusetts's average would run about $2,490/month — $1,698 less than the Middlesex County county median payment of $4,188/month, since Middlesex County's median home price ($687,000) is $287,000 above the $400,000 reference used elsewhere on this site.
In other words, price — not tax rate — usually drives the biggest gap between a Middlesex County payment and a generic national estimate. Use the calculator above to swap in your own target price.
PMI in Middlesex County if you put down less than 20%
Putting 10% down instead of 20% on the same $687,000 Middlesex County home adds private mortgage insurance (PMI) of about $412/month, bringing the total payment to roughly $5,033/month instead of $4,188. PMI is required on conventional loans below 20% down and cancels automatically once your loan balance reaches 78% of the original price.
Middlesex County mortgage — frequently asked questions
How much is a mortgage payment in Middlesex County?
On the Middlesex County median home price of $687,000, a 20%-down 30-year loan at 6.47% runs about $4,188/month total (principal, interest, property tax and insurance).
What is the property tax on the median home in Middlesex County?
Middlesex County's effective property tax rate is 1.05%, which works out to about $601/month ($7,214/year) on the $687,000 county median home value.
How does Middlesex County property tax compare to the rest of Massachusetts?
Middlesex County's 1.05% effective rate is above the Massachusetts state average of 1%, a difference of about $29/month on a $687,000 home.
What income do I need to afford a home in Middlesex County?
Using the common 28%-of-gross-income guideline against the $4,188/month PITI payment on the Middlesex County median home, that implies a gross annual income of roughly $179,474.
How much does PMI cost in Middlesex County with less than 20% down?
Putting 10% down on the $687,000 Middlesex County median home adds about $412/month in PMI, for a total payment near $5,033/month instead of $4,188.
What's included in a Middlesex County mortgage payment?
PITI: principal and interest together $3,463, property tax $601 at Middlesex County's 1.05% rate, and homeowners insurance $124 at the Massachusetts state average — no HOA dues assumed unless you add them above.
More Massachusetts counties in this pilot
Massachusetts mortgage calculator · Middlesex County property tax deep-dive — the full county-by-county property tax breakdown behind this payment estimate.
Mortgage calculators in other pilot counties
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →