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: February 1, 2018, Maps updated: February 1, 2018.
|Daytime Population: Workers||2,338|
|Daytime Population: Residents||4,262|
|Total Daytime Population (TDP)||6,600|
|Ratio TDP/Total Population1||0.68|
|Population in Households||9,655|
|Population in Familes||8,751|
|Population in Group Qrtrs||5|
|Median Household Income||$119,574|
|Average Household Income||$155,602|
|Per Capita Income||$51,773|
|Total Housing Units||3,344 (100%)|
|Owner Occupied HU||2,883 (86.2%)|
|Renter Occupied HU||330 ( 9.9%)|
|Vacant Housing Units||131 ( 3.9%)|
|Median Home Value||$571,191|
|Average Home Value||$608,281|
|Average Household Size||3.0|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.37%|
|Per Capita Income||2.0%|
The table below compares 21797 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||# 187||59th|
|Population Density||# 291||36th|
|Diversity Index||# 295||36th|
|Median Household Income||# 45||90th|
|Per Capita Income||# 64||86th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.