ZIP Code 21784 has segments in 2 Counties / Independent Cities (Carroll, Howard).
The ZIP Code maps and database are updated 4 times per year.
Database updated: January 1, 2021, Maps updated: November 4, 2020.
|Total Population||40,241 (100%)|
|Population in Households||39,081 (97.1%)|
|Population in Families||34,729 (86.3%)|
|Population in Group Quarters1||1,160 ( 2.9%)|
|Median Household Income||$116,606|
|Average Household Income||$143,627|
|% of Income for Mortgage4||14%|
|Per Capita Income||$50,473|
|Total HU (Housing Units)||14,439 (100%)|
|Owner Occupied HU||11,711 (81.1%)|
|Renter Occupied HU||2,244 (15.5%)|
|Vacant Housing Units||484 ( 3.4%)|
|Median Home Value||$389,490|
|Average Home Value||$424,039|
|Housing Affordability Index3||170|
|Average Household Size||2.8|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.06%|
|Per Capita Income||1.74%|
|Owner Occupied HU||0.4%|
The table below compares 21784 to the other 457 ZIP Codes in Maryland by rank and percentile using July 1, 2020 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||# 38||92nd|
|Population Density||# 183||60th|
|Median Household Income||# 85||82nd|
|Housing Affordability Index||# 319||70th|
|Per Capita Income||# 131||72nd|
|Diversity Index||# 334||27th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.