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: April 1, 2022, Maps updated: February 4, 2022.
POPULATION | |
---|---|
Total Population | 31,225 (100%) |
Population in Households | 31,052 (99.4%) |
Population in Families | 28,042 (89.8%) |
Population in Group Quarters1 | 173 ( 0.6%) |
Population Density | 379 |
Diversity Index2 | 29 |
INCOME | |
Median Household Income | $126,221 |
Average Household Income | $154,400 |
% of Income for Mortgage4 | 15% |
Per Capita Income | $51,733 |
Wealth Index5 | 235 |
HOUSING | |
---|---|
Total HU (Housing Units) | 10,839 (100%) |
Owner Occupied HU | 9,552 (88.1%) |
Renter Occupied HU | 908 ( 8.4%) |
Vacant Housing Units | 379 ( 3.5%) |
Median Home Value | $439,157 |
Average Home Value | $474,021 |
Housing Affordability Index3 | 164 |
HOUSEHOLDS | |
Total Households | 10,460 |
Average Household Size | 2.97 |
Family Households | 8,537 |
Average Family Size | 3 |
GROWTH RATE / YEAR |
2010-2021 | 2021-2026 |
---|---|---|
Population | 0.48% | 0.51% |
Households | 0.53% | 0.54% |
Families | 0.43% | 0.47% |
Median Household Income | 1.12% | |
Per Capita Income | 1.83% | |
Owner Occupied HU | 0.66% |
The table below compares 21771 to the other 458 ZIP Codes in Maryland by rank and percentile using July 1, 2021 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 | # 74 | 84th |
Population Density | # 238 | 48th |
Median Household Income | # 65 | 86th |
Housing Affordability Index | # 322 | 70th |
Per Capita Income | # 128 | 72nd |
Diversity Index | # 325 | 29th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.