Rockville, MD Property Tax Rates
Compare property tax rates across 4 ZIP codes in Rockville, Maryland.
Avg Tax Rate
0.91%
Avg Annual Tax
$5,658
Avg Home Value
$615,725
ZIP Codes
4
Property Tax Overview: Rockville, MD
Rockville has 4 ZIP codes with property tax data. The average effective tax rate across these ZIPs is 0.91%, which is 5% below the Maryland average of 0.96%. Annual property taxes range from $4,813 (ZIP 20853) to $7,114 (ZIP 20850).
For a home at Rockville's median value of $615,725, property taxes add approximately $469/month to housing costs. Rockville home values are above the Maryland median of $428,085, meaning the monthly tax impact is correspondingly higher.
Property tax rates within Rockville vary by 0.24 percentage points across its ZIP codes. This variation typically reflects different school district boundaries, special assessment zones, and municipal service areas within the city.
Rockville vs Maryland Average
Effective Tax Rate
5% below state average
Annual Property Tax
Median Home Value
Frequently Asked Questions
What is the average property tax rate in Rockville, MD?
The average effective property tax rate in Rockville, Maryland is 0.91%, based on 4 ZIP codes.
How much is property tax in Rockville, MD?
The average median annual property tax in Rockville is $5,658 per year, with a median home value of $615,725.
Which ZIP code in Rockville has the lowest property tax rate?
ZIP code 20853 has the lowest effective tax rate in Rockville at 0.79%, with a median annual tax of $4,813.
How many ZIP codes are in Rockville, MD?
Rockville, Maryland has 4 ZIP codes with property tax data available.
Which ZIP code in Rockville has the highest property tax rate?
ZIP code 20850 has the highest effective tax rate in Rockville at 1.04%, with a median annual tax of $7,114.
How do Rockville property taxes compare to the Maryland average?
Rockville's average effective rate of 0.91% is 5% below the Maryland state average of 0.96%.
What factors affect property tax rates between ZIP codes in Rockville?
Property tax rate differences within Rockville are typically driven by school district boundaries (which can account for 40–60% of a tax bill), special assessment zones for fire, water, or transit services, and whether a ZIP falls within city limits or an unincorporated area. Each taxing jurisdiction sets its own rate, which is why adjacent ZIP codes can have noticeably different effective rates.
Tips for Rockville Homeowners
- •Appeal your assessment: If your home is assessed higher than its market value, you can file a property tax appeal. Studies suggest 30–60% of properties are over-assessed. Most counties offer a free informal review process.
- •Check your exemptions: Homestead exemptions can reduce your taxable value and are available to primary residents in most states. Senior, veteran, and disability exemptions may also apply. Exemptions must typically be applied for — they are not automatic.
- •Know your assessment cycle: Maryland reassesses properties periodically. After buying a home, your next tax bill may reflect a new assessment based on your purchase price. Budget accordingly, especially if you bought above prior assessed values.
- •Compare ZIP codes before buying: Even within Rockville, effective tax rates can vary significantly across ZIP codes due to different school district overlays. Use PropertyTaxByZip to compare specific ZIPs before choosing a neighborhood.
Looking for county-level property tax data? View Montgomery County on TaxByCounty.com
Data from U.S. Census Bureau, American Community Survey 2019-2023 5-Year Estimates (ZCTA level). ZIP Code Tabulation Areas (ZCTAs) are Census approximations of USPS ZIP codes.
Estimates are informational only and should not be used as financial or legal advice.