Westminster, Carroll County, Maryland Property Taxes
Median Westminster, MD effective property tax rate: 1.13%, significantly higher than the national median of 1.02%, but lower than the Maryland state median of 1.06%.
Median Westminster, MD home value: $315,900
Median annual Westminster, MD tax bill: $3,633, $1,233 higher than the national median property tax bill of $2,400.
How are property taxes in Carroll calculated?
Property taxes in Westminster, MD 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 Westminster’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Westminster, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Westminster, Carroll County, Maryland Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.13%
Estimate Property Tax Bill
$3,570
$3,313
Property Tax Rates Across Westminster, Carroll County, Maryland
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 Westminster Tax Rate
1.13%
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 Carroll County Tax Rate
1.10%
Median Effective Maryland Tax Rate
1.06%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Westminster, Carroll County, Maryland
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
21157 | 0.96% | 1.02% | 1.13% | 1.13% | 1.69% |
21158 | 0.97% | 1.02% | 1.13% | 1.69% | 1.69% |
Source: Ownwell
Property Tax Assessment Values Across Westminster, Carroll County, Maryland
When examining property taxes in Westminster, MD, 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 Carroll 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 Carroll 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 Westminster. For example, the median home price in Westminster is $315,900, with tax bills ranging significantly across the county. 21157 has the highest median home price at $318,600.
Property Tax Assessment Values Across Westminster, Carroll County, Maryland
Source: Ownwell

$231,600
$351,650
$471,700
Median Westminster Market Value
$315,900
Median Carroll County Market Value
$347,000
Median Maryland Market Value
$317,700
Median United States Market Value
$235,294
Property Tax Assessment Values Across Westminster, Carroll County, Maryland
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
21157 | $175,800 | $237,775 | $318,600 | $418,925 | $532,230 |
21158 | $194,180 | $233,000 | $312,000 | $388,200 | $478,220 |
Source: Ownwell
Property Tax Bills Across Westminster, Carroll County, Maryland
Median Westminster Tax Bill
$3,633
Median Carroll County Tax Bill
$3,882
Median Maryland Tax Bill
$3,419
Median United States Tax Bill
$2,400
Property Tax Bills Across Westminster, Carroll County, Maryland
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
21157 | $2,373 | $2,898 | $3,553 | $4,526 | $5,758 |
21158 | $2,547 | $3,132 | $3,767 | $4,942 | $6,689 |
Source: Ownwell