21757 Property Tax Rate

Property owners in ZIP code 21757 (Keymar, Maryland) pay a median of $4,115/year in property taxes on homes valued at $414,300. This translates to an effective tax rate of 0.99%, which is 3% above the Maryland state average of 0.96%.

The monthly property tax burden for a median-valued home in 21757 is approximately $343, which factors into escrow payments on mortgages. This ZIP code is located within Carroll County.

Compared to similar ZIP codes in Maryland, 21757 has higher property taxes. ZIP codes with similar effective rates include 21758 (0.99%) and 21874 (0.99%).

In Keymar, property taxes represent approximately 4.2% of the median household income of $98,520, providing context for the relative tax burden on homeowners in this area.

Maryland's Homestead Tax Credit caps annual assessment increases at 10% for your primary residence, though your initial purchase-year assessment is unrestricted — file for the credit with Carroll County's tax office. The credit applies automatically to qualifying primary residences but requires proper registration; contact the Carroll County Assessor to ensure your homestead classification is recorded within 45 days of purchase. Request a copy of your Notice of Assessment and confirm your assessment ratio is correct (owner-occupied property should be assessed on market value).