What are the richest counties in Maryland?

Howard County ($149,763), Calvert County ($133,922) and Montgomery County ($132,450) had the highest median household income in Maryland in the 2020–24 survey.

Data as of 2024 · updated November 5, 2026

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All 24 ranked Maryland counties

Maryland counties ranked by median household income
Rank	County	Median household income 2020–24	Change since 2016–20	Residents
1	Howard County	$149,763	+20.7%	339,183
2	Calvert County	$133,922	+18.8%	94,484
3	Montgomery County	$132,450	+18.5%	1,074,582
4	Anne Arundel County	$124,911	+21.0%	603,380
5	Charles County	$122,816	+18.5%	176,593
6	Frederick County	$122,002	+21.2%	302,883
7	St. Mary's County	$119,446	+24.6%	116,692
8	Carroll County	$118,211	+18.7%	176,677
9	Queen Anne's County	$112,826	+17.0%	54,448
10	Harford County	$112,265	+19.4%	266,446
11	Prince George's County	$101,798	+17.0%	970,374
12	Cecil County	$92,007	+15.9%	107,131
13	Baltimore County	$91,768	+16.6%	847,650
14	Talbot County	$84,811	+16.0%	38,238
15	Worcester County	$81,745	+25.0%	54,459
16	Kent County	$80,147	+33.1%	19,565
17	Washington County	$77,747	+22.4%	157,731
18	Wicomico County	$76,210	+26.2%	106,899
19	Caroline County	$68,457	+15.9%	34,116
20	Garrett County	$67,688	+24.1%	28,370
21	Somerset County	$64,943	+44.4%	24,973
22	Baltimore (city)	$62,177	+19.2%	569,997
23	Dorchester County	$61,839	+17.1%	33,628
24	Allegany County	$59,603	+20.5%	66,848

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Maryland has the highest median household income?

Howard County: $149,763, ahead of Calvert County ($133,922) and Montgomery County ($132,450), of 24 Maryland counties ranked.

How is this ranking calculated?

More county rankings for Maryland

Median household income in other states

Across the U.S.