Counties in Maryland by median household income (US single-year estimate)

Howard County had the highest median household income (US single-year estimate) of 24 counties in 2021, at $131,412. Somerset County had the lowest, at $47,131. The median was $79,545 and the figure for Maryland was $90,129. Source: the U.S. Census Bureau.

Highest131,412Howard County

Lowest47,131Somerset County

Median79,54524 counties

Maryland90,129History

Map of counties, 2021

Under 59K
59K to 72K
72K to 94K
94K to 110K
110K and over

USD, 2021. Source: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

USD. Source: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Retrieved 2026-10-12.

Full ranking

Rank	Counties	2021 USD	Change on 2020
1	Howard County	131,412	+5.9%
2	Calvert County	117,459	+5.2%
3	Montgomery County	112,352	-2.6%
4	Anne Arundel County	107,281	+1.2%
5	St. Mary's County	106,539	+1.3%
6	Frederick County	104,253	+5%
7	Charles County	103,918	+1.2%
8	Carroll County	102,006	-2.7%
9	Harford County	95,951	-6.4%
10	Queen Anne's County	94,583	+1.2%
11	Prince George's County	89,689	+5.2%
12	Baltimore County	80,159	+0.2%
13	Talbot County	78,931	+13.9%
14	Cecil County	76,727	-8.9%
15	Worcester County	70,952	+13.6%
16	Kent County	66,183	+2.7%
17	Washington County	65,433	+3.5%
18	Caroline County	61,945	+2.2%
19	Wicomico County	61,848	+4.1%
20	Garrett County	55,107	-3.2%
21	Dorchester County	54,731	-0.2%
22	Baltimore city	54,068	+5%
23	Allegany County	49,236	-7.1%
24	Somerset County	47,131	-9%

Other periods

About this ranking

Household income at the middle of the distribution for one year, in US dollars of that year. United States: Census Bureau Small Area Income and Poverty Estimates (SAIPE) for the nation, states and counties.

A model-based estimate that combines the one-year American Community Survey with federal tax records and other administrative data, so every county gets a figure for a single year. The national figure is the one-year ACS estimate. Not adjusted for inflation between years. The Census Bureau advises comparing years from 2006 on only. For the five-year ACS median, which also covers cities, use median_household_income.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties (Counties in Maryland by median household income (US single-year estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt

MLA 9

Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties, Counties in Maryland by median household income (US single-year estimate), 2021. U.S. Census Bureau, 27 Jan. 2026, https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maryland-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Counties in Maryland by median household income (US single-year estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Also distributed by Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maryland-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties, Counties in Maryland by median household income (US single-year estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt, via Invokely: https://invokely.ai/rankings/median-household-income-single-year-us/maryland-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_maryland_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties: Counties in Maryland by median household income (US single-year estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maryland-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties: Counties in Maryland by median household income (US single-year estimate), 2021
PY  - 2026
DA  - 2026/01/27
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt
L2  - https://invokely.ai/rankings/median-household-income-single-year-us/maryland-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/median-household-income-single-year-us/maryland-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. https://www2.census.gov/programs-surveys/saipe/datasets/2021/2021-state-and-county/est21all.txt. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest median household income (US single-year estimate)?

Howard County, with $131,412 in 2021, according to the U.S. Census Bureau.

Which county has the lowest median household income (US single-year estimate)?

Somerset County, with $47,131 in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Income and Poverty Estimates (SAIPE): median household income, nation, states and counties. Retrieved 2026-10-12.