Comparison to Surrounding Areas
The median household income ($139,395) for 21784 is less than the median household income for 21104 ($191,804), 21723 ($241,250), 21794 ($231,466), 21797 ($189,241), Howard County ($149,763), Eldersburg CDP ($142,954), and Sykesville town ($139,556). But it's more than 21048 ($131,921), 21136 ($118,500), 21157 ($104,966), and Carroll County ($118,211).
| 21784 | $139,395 |
| Eldersburg CDP | $142,954 |
| Sykesville town | $139,556 |
| Carroll County | $118,211 |
| Howard County | $149,763 |
Get Median Household Income for all Zip Codes in Maryland.
The average household income ($165,007) for 21784 is less than the average household income for 21104 ($209,422), 21723 ($208,514), 21794 ($288,564), 21797 ($209,234), Howard County ($184,243), and Eldersburg CDP ($166,910). But it's more than 21048 ($161,634), 21136 ($145,110), 21157 ($128,446), Carroll County ($142,587), and Sykesville town ($161,679).
| 21784 | $165,007 |
| Eldersburg CDP | $166,910 |
| Sykesville town | $161,679 |
| Carroll County | $142,587 |
| Howard County | $184,243 |
Get Average Household Income for all Zip Codes in Maryland.
The per-capita income for 21784 is $56,974. The per capita income ($56,974) for 21784 is less than the per capita income for 21797 ($70,998), 21723 ($72,952), 21794 ($88,649), 21048 ($58,207), 21104 ($74,405), 21136 ($59,518), Howard County ($67,501), and Eldersburg CDP ($58,115). But it's more than 21157 ($49,793), Carroll County ($53,124), and Sykesville town ($51,837).
| 21784 | $56,974 |
| Eldersburg CDP | $58,115 |
| Sykesville town | $51,837 |
| Carroll County | $53,124 |
| Howard County | $67,501 |
Get Per-Capita Income for all Zip Codes in Maryland.
30.8% of households make over $200,000 a year. The percent high income households (30.8%) for 21784 is less than the percent high income households for 21104 (46.9%), 21723 (53.9%), 21794 (61.1%), 21797 (43.5%), Howard County (34.7%), and Eldersburg CDP (33.0%). But it's more than 21048 (29.2%), 21136 (21.4%), 21157 (18.9%), Carroll County (23.1%), and Sykesville town (28.1%).
| 21784 | 30.8% |
| Eldersburg CDP | 33.0% |
| Sykesville town | 28.1% |
| Carroll County | 23.1% |
| 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 | |
|---|---|---|---|---|
| 21784 | $-1 | $156,719 | $167,389 | $85,165 |
| Eldersburg CDP | $-1 | $156,652 | $190,191 | $83,721 |
| Sykesville town | $-1 | $161,917 | $139,899 | $107,739 |
| Carroll County | $58,773 | $140,910 | $148,624 | $71,452 |
| 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 21784 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+ | |||||
| 21784 | +/-$6,461 | +/-$7,197 | +/-$2,603 | +/-2.1% | +/-$-1 | +/-$7,575 | +/-$17,757 | +/-$7,278 |
| Eldersburg CDP | +/-$7,926 | +/-$7,140 | +/-$2,667 | +/-2.1% | +/-$-1 | +/-$10,428 | +/-$14,527 | +/-$5,914 |
| Sykesville town | +/-$13,832 | +/-$14,657 | +/-$6,390 | +/-8.6% | +/-$-1 | +/-$36,684 | +/-$34,747 | +/-$24,637 |
| Carroll County | +/-$3,883 | +/-$2,749 | +/-$950 | +/-1.1% | +/-$5,929 | +/-$7,273 | +/-$5,233 | +/-$3,938 |
| Howard County | +/-$3,158 | +/-$3,425 | +/-$1,195 | +/-1.0% | +/-$15,955 | +/-$5,806 | +/-$6,431 | +/-$6,899 |