ZIP Code 21797 has segments in 3 Counties / Independent Cities (Carroll, Howard, Montgomery).
The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2018, Maps updated: August 1, 2018.
|Population in Households||9,296|
|Population in Familes||8,448|
|Population in Group Qrtrs||5|
|Median Household Income||$122,101|
|Average Household Income||$160,349|
|Per Capita Income||$53,480|
|Total Housing Units||3,246 (100%)|
|Owner Occupied HU||2,768 (85.3%)|
|Renter Occupied HU||333 (10.3%)|
|Vacant Housing Units||145 ( 4.5%)|
|Median Home Value||$593,124|
|Average Home Value||$654,118|
|Average Household Size||3.0|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.72%|
|Per Capita Income||2.47%|
The table below compares 21797 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||# 191||58th|
|Population Density||# 283||37th|
|Diversity Index||# 293||35th|
|Median Household Income||# 50||89th|
|Per Capita Income||# 62||86th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.