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: July 1, 2023, Maps updated: May 3, 2023.
|Total Population||41,983 (100%)|
|Population in Households||40,916 (97.5%)|
|Population in Families||36,337 (86.6%)|
|Population in Group Quarters1||1,067 ( 2.5%)|
|Median Household Income||$136,876|
|Average Household Income||$180,282|
|% of Income for Mortgage4||21%|
|Per Capita Income||$63,641|
|Socioeconomic Status Index6||Moderate (63.2)|
|Total HU (Housing Units)||15,305 (100%)|
|Owner Occupied HU||13,180 (86.1%)|
|Renter Occupied HU||1,632 (10.7%)|
|Vacant Housing Units||493 ( 3.2%)|
|Median Home Value||$470,705|
|Average Home Value||$519,154|
|Housing Affordability Index3||117|
|Average Household Size||2.76|
|Average Family Size||3.00|
GROWTH RATE / YEAR
|Median Household Income||2.24%|
|Per Capita Income||2.32%|
|Owner Occupied HU||0.50%|
The table below compares 21784 to the other 458 ZIP Codes in Maryland by rank and percentile using July 1, 2023 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||# 39||92nd|
|Population Density||# 179||61st|
|Median Household Income||# 78||83rd|
|Housing Affordability Index||# 392||86th|
|Per Capita Income||# 103||78th|
|Diversity Index||# 307||33rd|
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.