Maryland Gazetteer
The ZIP Code maps and database are updated 4 times per year.
Database updated: March 1, 2026, Maps updated: May 1, 2024.
Source: 2020-2024 American Community Survey 5-Year Estimates
POPULATION | |
|---|---|
| Total Population | 40,034 (100%) |
| Population Density | 4,128 per sq mi |
| Diversity Index1 | 72 |
INCOME | |
| Median Household Income | $118,563 |
| Per Capita Income | $56,185 |
| Median Home Value | $453,700 |
HOUSING | |
|---|---|
| Total HU (Housing Units) | 15,780 (100%) |
| Owner Occupied HU | 10,534 (66.8%) |
| Renter Occupied HU | 4,880 (30.9%) |
| Vacant Housing Units | 366 (2.3%) |
HOUSEHOLDS | |
| Total Households | 15,414 |
| Average Household Size | 2.59 |
| Family Households | 10,396 (67.4%) |
The table below compares 21045 to the other 33,772 ZIP Codes in the United States by rank and percentile using 2020-2024 American Community Survey 5-Year Estimates 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 | # 2043 | 94th |
| Population Density | # 2735 | 92nd |
| Median Household Income | # 3415 | 90th |
| Per Capita Income | # 4534 | 87th |
| Diversity Index | # 418 | 99th |
Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.
