ZIP Code 21771 has segments in 4 Counties / Independent Cities (Carroll, Frederick, Howard, Montgomery).
The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2019, Maps updated: February 1, 2019.
|Population in Households||30,062|
|Population in Familes||27,251|
|Population in Group Qrtrs||175|
|Median Household Income||$110,281|
|Average Household Income||$134,674|
|Per Capita Income||$45,058|
|Total Housing Units||10,440 (100%)|
|Owner Occupied HU||9,048 (86.7%)|
|Renter Occupied HU||1,021 ( 9.8%)|
|Vacant Housing Units||371 ( 3.6%)|
|Median Home Value||$431,958|
|Average Home Value||$469,339|
|Average Household Size||2.99|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.49%|
|Per Capita Income||2.61%|
The table below compares 21771 to the other 448 ZIP Codes in Maryland by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
|Total Population||# 80||82nd|
|Population Density||# 235||48th|
|Diversity Index||# 334||25th|
|Median Household Income||# 91||80th|
|Per Capita Income||# 131||71st|
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.