Lexington, Middlesex County, Massachusetts Property Taxes
Median Lexington, MA effective property tax rate: 1.30%, significantly higher than the national median of 1.02%, but lower than the Massachusetts state median of 1.23%.
Median Lexington, MA home value: $1,153,000
Median annual Lexington, MA tax bill: $14,989, $12,589 higher than the national median property tax bill of $2,400.
How are property taxes in Middlesex calculated?
Property taxes in Lexington, MA are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Lexington’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Lexington, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Lexington, Middlesex County, Massachusetts Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.3%
Estimate Property Tax Bill
$14,989
$13,909
Property Tax Rates Across Lexington, Middlesex County, Massachusetts
Local government entities are responsible for setting tax rates, which can differ significantly within a state. The reason for this variation is that each county calculates its required budget to provide services annually and divides that by the total value of all taxable property within its jurisdiction. This calculation determines the property tax rate. Although votes and laws play a role in establishing tax rates and budgets, this is essentially the annual process.
In Lexington, Middlesex County, Massachusetts, the effective property tax rate can be compared to other cities within the state and the median property tax rates in Massachusetts and the U.S. With a median property tax rate of 1.30%, Lexington's rate is above the national median of 1.02%. This means homeowners in Lexington typically pay higher property taxes compared to the national average. However, understanding these rates can help property owners better navigate their tax responsibilities and potentially explore options for appeals and exemptions. By comparing and contrasting local rates, homeowners can make informed decisions to manage their property tax burden effectively.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Lexington Tax Rate
1.30%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Middlesex County Tax Rate
1.22%
Median Effective Massachusetts Tax Rate
1.23%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Lexington, Middlesex County, Massachusetts
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
02420 | 1.30% | 1.30% | 1.30% | 1.30% | 1.30% |
02421 | 1.30% | 1.30% | 1.30% | 1.30% | 1.30% |
Source: Ownwell
Property Tax Assessment Values Across Lexington, Middlesex County, Massachusetts
When examining property taxes in Lexington, MA, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Middlesex County appraisal district estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
In Middlesex County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Lexington.
For example, the median home price in Lexington is $1,153,000, with tax bills ranging significantly across the county. Zip code 02421 has the highest median home price at $1,181,000.
Property Tax Assessment Values Across Lexington, Middlesex County, Massachusetts
Source: Ownwell

$320,300
$928,425
$1,536,550
Median Lexington Market Value
$1,153,000
Median Middlesex County Market Value
$633,600
Median Massachusetts Market Value
$492,600
Median United States Market Value
$235,294
Property Tax Assessment Values Across Lexington, Middlesex County, Massachusetts
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
02420 | $670,000 | $859,000 | $1,123,000 | $1,563,000 | $2,060,200 |
02421 | $789,000 | $926,000 | $1,181,000 | $1,554,000 | $1,945,900 |
Source: Ownwell
Property Tax Bills Across Lexington, Middlesex County, Massachusetts
Property Tax Bills Across Lexington, Middlesex County, Massachusetts
Source: Ownwell

$4,294
$11,232
$18,170
Median Lexington Tax Bill
$14,989
Median Middlesex County Tax Bill
$7,427
Median Massachusetts Tax Bill
$5,844
Median United States Tax Bill
$2,400
Property Tax Bills Across Lexington, Middlesex County, Massachusetts
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
02420 | $8,707 | $11,154 | $14,599 | $20,319 | $26,783 |
02421 | $10,257 | $12,038 | $15,353 | $20,202 | $25,297 |
Source: Ownwell