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: February 1, 2018, Maps updated: February 1, 2018.
|Daytime Population: Workers||12,305|
|Daytime Population: Residents||18,180|
|Total Daytime Population (TDP)||30,485|
|Ratio TDP/Total Population1||0.77|
|Population in Households||38,470|
|Population in Familes||34,241|
|Population in Group Qrtrs||1,158|
|Median Household Income||$106,517|
|Average Household Income||$126,735|
|Per Capita Income||$44,579|
|Total Housing Units||14,097 (100%)|
|Owner Occupied HU||11,523 (81.7%)|
|Renter Occupied HU||2,083 (14.8%)|
|Vacant Housing Units||491 ( 3.5%)|
|Median Home Value||$391,042|
|Average Home Value||$434,724|
|Average Household Size||2.83|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.06%|
|Per Capita Income||2.05%|
The table below compares 21784 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 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||# 41||91st|
|Population Density||# 177||61st|
|Diversity Index||# 338||26th|
|Median Household Income||# 91||80th|
|Per Capita Income||# 118||74th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.