What the Pros Know
Market Snapshot
Zip Code 21784 | Carroll County, MD
37,219
Population
YoY
202240.3
Median Age
YoY
2022$138,923
Median Household Income
YoY
2022$600,000
Median Sale Price
1.2% MoM
2.3% YoY
6/2025113
Homes Sold
6.6% MoM
20.2% YoY
6/20250.4
Months Inventory
6.3% MoM
1.3% YoY
6/202526
Days on Market
8 MoM
21 YoY
6/202542
Listings
12.5% MoM
2.4% YoY
6/2025247
Price per Sq Ft
1.5% MoM
0% YoY
6/2025
See 21784 on Zillow
1. Population Data from U.S. Census Bureau.
2. Sales Data provided by Redfin, a national real estate brokerage.
MoM = Month over Month. The percentage change from the previous month to the current month.
YoY = Year over Year. The percentage change from the same period the previous year to the current period.