ZIP Code 21771 has segments in 4 Counties / Independent Cities (Carroll, Frederick, Howard, Montgomery).
The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2019, Maps updated: February 1, 2019.
POPULATION | |
|---|---|
| Total Population | 30,237 |
| Population in Households | 30,062 |
| Population in Familes | 27,251 |
| Population in Group Qrtrs | 175 |
| Population Density2 | 356 |
| Diversity Index3 | 25 |
INCOME | |
| Median Household Income | $110,281 |
| Average Household Income | $134,674 |
| Per Capita Income | $45,058 |
HOUSING | |
|---|---|
| Total Housing Units | 10,440 (100%) |
| Owner Occupied HU | 9,048 (86.7%) |
| Renter Occupied HU | 1,021 ( 9.8%) |
| Vacant Housing Units | 371 ( 3.6%) |
| Median Home Value | $431,958 |
| Average Home Value | $469,339 |
HOUSEHOLDS | |
| Total Households | 10,069 |
| Average Household Size | 2.99 |
| Family Households | 8,228 |
| Average Family Size | 3 |
GROWTH RATE / YEAR |
2010-2018 | 2018-2023 |
|---|---|---|
| Population | 0.48% | 0.66% |
| Households | 0.48% | 0.66% |
| Families | 0.38% | 0.59% |
| Median Household Income | 1.49% | |
| Per Capita Income | 2.61% |
The table below compares 21771 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.
| Variable Description | Rank | Percentile |
|---|---|---|
| Total Population | # 80 | 82nd |
| Population Density | # 235 | 48th |
| Diversity Index | # 334 | 25th |
| Median Household Income | # 91 | 80th |
| Per Capita Income | # 131 | 71st |
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.
