Counties in Maryland by personal income
Montgomery County had the highest personal income of 24 counties in 2018, at $88.56 billion. Somerset County had the lowest, at $769.62 million. The median was $5.97 billion and the figure for Maryland was $367.87 billion. Source: the U.S. Bureau of Economic Analysis.
Map of counties, 2018
- Under 2,100
- 2,100 to 4,300
- 4,300 to 8,600
- 8,600 to 26K
- 26K and over
All counties, 2018
Full ranking
| Rank | Counties | 2018 | Change on 2017 |
|---|---|---|---|
| 1 | Montgomery County | 88,559.5 | +2.2% |
| 2 | Baltimore County | 48,923.9 | +3.6% |
| 3 | Prince George's County | 43,924.9 | +3.6% |
| 4 | Anne Arundel County | 37,926.1 | +4% |
| 5 | Baltimore city | 29,488.6 | +3.5% |
| 6 | Howard County | 24,328.5 | +3.2% |
| 7 | Frederick County | 15,642.8 | +5.8% |
| 8 | Harford County | 14,586.8 | +3.8% |
| 9 | Carroll County | 10,249.2 | +2.6% |
| 10 | Charles County | 8,989 | +3% |
| 11 | Washington County | 6,849.8 | +4.4% |
| 12 | St. Mary's County | 6,320.9 | +4.1% |
| 13 | Calvert County | 5,610.6 | +3.6% |
| 14 | Cecil County | 4,851.1 | +4.7% |
| 15 | Wicomico County | 4,130.6 | +1.9% |
| 16 | Queen Anne's County | 3,140.4 | +3.7% |
| 17 | Worcester County | 2,876.2 | +1.7% |
| 18 | Allegany County | 2,779.7 | +3.1% |
| 19 | Talbot County | 2,568.5 | +3.4% |
| 20 | Caroline County | 1,487 | +2.7% |
| 21 | Dorchester County | 1,428.4 | +2.4% |
| 22 | Garrett County | 1,269.8 | +5.4% |
| 23 | Kent County | 1,129.5 | +3.8% |
| 24 | Somerset County | 769.6 | -1.3% |
Other periods
About this ranking
Total income received by the residents of a place from work, own businesses, property and government benefits, before income taxes, in millions of current US dollars. United States: Bureau of Economic Analysis regional accounts, table SAINC1 line 1 for the nation and states and CAINC1 line 1 for counties.
Counted where people live, not where they work. The national figure is the total of the states, which differs slightly from personal income in the national accounts. Divided by BEA population it gives per_capita_personal_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. Bureau of Economic Analysis. CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents. https://apps.bea.gov/regional/zip/CAINC1.zip. Retrieved 2026-10-12.Citation styles
APA 7
U.S. Bureau of Economic Analysis. (2026). CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents (Counties in Maryland by personal income, 2018) [Data set]. Retrieved October 12, 2026, from https://apps.bea.gov/regional/zip/CAINC1.zip
MLA 9
CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents, Counties in Maryland by personal income, 2018. U.S. Bureau of Economic Analysis, 5 Feb. 2026, https://apps.bea.gov/regional/zip/CAINC1.zip. Invokely, https://invokely.ai/rankings/personal-income/maryland-counties?period=2018. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Bureau of Economic Analysis. 2026. CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents. Counties in Maryland by personal income, 2018. Dataset. Accessed October 12, 2026. https://apps.bea.gov/regional/zip/CAINC1.zip. Also distributed by Invokely, https://invokely.ai/rankings/personal-income/maryland-counties?period=2018.
Harvard
U.S. Bureau of Economic Analysis (2026) CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents, Counties in Maryland by personal income, 2018 [Dataset]. Available at: https://apps.bea.gov/regional/zip/CAINC1.zip, via Invokely: https://invokely.ai/rankings/personal-income/maryland-counties?period=2018 (Accessed: 12 October 2026).
BibTeX
@misc{bureau_counties_in_maryland_by_2018,
author = {{U.S. Bureau of Economic Analysis}},
title = {{CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents: Counties in Maryland by personal income, 2018}},
year = {2026},
howpublished = {Data set},
url = {https://apps.bea.gov/regional/zip/CAINC1.zip},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/personal-income/maryland-counties?period=2018. Publisher attribution: U.S. Bureau of Economic Analysis. CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents. https://apps.bea.gov/regional/zip/CAINC1.zip. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Bureau of Economic Analysis
TI - CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents: Counties in Maryland by personal income, 2018
PY - 2026
DA - 2026/02/05
PB - U.S. Bureau of Economic Analysis
DB - Invokely
UR - https://apps.bea.gov/regional/zip/CAINC1.zip
L2 - https://invokely.ai/rankings/personal-income/maryland-counties?period=2018
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/personal-income/maryland-counties?period=2018.
N1 - Publisher attribution: U.S. Bureau of Economic Analysis. CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents. https://apps.bea.gov/regional/zip/CAINC1.zip. Retrieved 2026-10-12.
ER -
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Rank Counties in Maryland by personal income using official data, and cite the source.
rank_places {"indicator":"personal_income","level":"province","within":"Maryland","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=personal_income&level=province&within=Maryland&limit=10Questions
Which county has the highest personal income?
Montgomery County, with $88.56 billion in 2018, according to the U.S. Bureau of Economic Analysis.
Which county has the lowest personal income?
Somerset County, with $769.62 million in 2018.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Bureau of Economic Analysis, CAINC1: county annual personal income summary, personal income (published in thousands of dollars, shown in millions), individual counties and county equivalents. Retrieved 2026-10-12.