21784 Income Statistics

Comparison to Surrounding Areas

21784 Median Household Income

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

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21784 Average Household Income

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

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21784 Per-Capita Income

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.

21784 High Income Households

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%).

2178430.8%
Eldersburg CDP33.0%
Sykesville town28.1%
Carroll County23.1%
Howard County34.7%

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21784 Median Household Income by Age of Householder

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.

21784 Map

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About the Data

Data Sources

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.

The following data tables were used:

  • B19001 Household Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • B19013 Median Household Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • B19301 Per Capita Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • S1902 Mean Income in the Past 12 Months (in 2024 inflation-adjusted dollars)
  • B19049 Median Household Income in the Past 12 Months (in 2024 inflation-adjusted dollars) By Age Of Householder

Margins of Error

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