Comparison to Surrounding Areas
The median household income ($241,250) for 21723 is less than the median household income for 21738 ($250,001). But it's more than 21784 ($139,395), 21794 ($231,466), 21797 ($189,241), and Howard County ($149,763).
| 21723 | $241,250 |
| Howard County | $149,763 |
Get Median Household Income for all Zip Codes in Maryland.
The average household income ($208,514) for 21723 is less than the average household income for 21738 ($297,325), 21794 ($288,564), and 21797 ($209,234). But it's more than 21784 ($165,007) and Howard County ($184,243).
| 21723 | $208,514 |
| Howard County | $184,243 |
Get Average Household Income for all Zip Codes in Maryland.
The per-capita income for 21723 is $72,952. The per capita income ($72,952) for 21723 is less than the per capita income for 21738 ($92,235) and 21794 ($88,649). But it's more than 21784 ($56,974), 21797 ($70,998), and Howard County ($67,501).
| 21723 | $72,952 |
| Howard County | $67,501 |
Get Per-Capita Income for all Zip Codes in Maryland.
53.9% of households make over $200,000 a year. The percent high income households (53.9%) for 21723 is less than the percent high income households for 21738 (63.4%) and 21794 (61.1%). But it's more than 21784 (30.8%), 21797 (43.5%), and Howard County (34.7%).
| 21723 | 53.9% |
| Howard County | 34.7% |
Get High Income Households for all Zip Codes in Maryland.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 21723 | $-1 | $250,001 | $242,222 | $-1 |
| Howard County | $67,536 | $148,154 | $181,793 | $110,656 |
Get Median Household Income by Age of Householder for all Zip Codes in Maryland.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 21723 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 21723 | +/-$148,336 | +/-$55,718 | +/-$15,473 | +/-19.9% | +/-$-1 | +/-$-1 | +/-$128,680 | +/-$-1 |
| Howard County | +/-$3,158 | +/-$3,425 | +/-$1,195 | +/-1.0% | +/-$15,955 | +/-$5,806 | +/-$6,431 | +/-$6,899 |