Ranking of Maryland Counties By Average Household Income in 2021 (ACS-5Yrs)

Updated on March 13, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Average Household Income for Maryland was $120,234. Among all Maryland counties, Montgomery County had the highest average household income ($161,149), followed by Howard County ($160,611), and Calvert County ($139,436). On the other hand, the following 3 counties had the lowest average household income: Somerset County ($60,227), Allegany County ($65,335), and Dorchester County ($75,871).

The chart below shows the top 10 Maryland counties with high average household income, and the table below shows the ranking of all Maryland counties.

You can also see similar information for other states and for the United States.

Data Source: US Census Bureau.
Ranking of Maryland Counties By Average Household Income in 2021
Montgomery County
Howard County
Calvert County
Anne Arundel County
Queen Anne's County
Frederick County
Charles County
Carroll County
St. Mary's County
Harford County
Ranking of Maryland Counties By Average Household Income in 2021
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Rank County Average Household Income ($)
1 Montgomery County 161149
2 Howard County 160611
3 Calvert County 139436
4 Anne Arundel County 135094
5 Queen Anne's County 126888
6 Frederick County 126132
7 Charles County 124385
8 Carroll County 123762
9 St. Mary's County 120986
10 Harford County 118276
11 Talbot County 116514
12 Prince George's County 110651
13 Baltimore County 109376
14 Worcester County 99385
15 Cecil County 97915
16 Kent County 88935
17 Washington County 87252
18 Caroline County 85587
19 Garrett County 83627
20 Wicomico County 81907
21 Baltimore city 79399
22 Dorchester County 75871
23 Allegany County 65335
24 Somerset County 60227