Caroline County, Maryland Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 20th-largest in Maryland
The population of Caroline County, Maryland is 33,406 as of the 2023 American Community Survey, making it the 20th-largest county in Maryland. The median household income is $66,368, the median home value is $272,400, and the median age is 39.8.
The population of Caroline County has grown 3.6% since 2010 (33,054 → 34,248), a +0.25% annualized rate.
33,406
Population
+0.25%
Annual growth
105
People / sq mi
$66,368
Median Income
$272,400
Median Home Value
Caroline County covers 319 sq mi of land at 104.6 people per square mile.
About Caroline County, MD
Caroline County is a county in Maryland with a population of 33,406. It ranks #20 among counties in Maryland by population. The median age is 39.8, in line with the national median. The population is 49.2% male and 50.8% female.
The median household income in Caroline County is $66,368, below the US median of $74,580. 9.4% of residents live below the federal poverty level. Home values sit at a median of $272,400, with monthly rent averaging $1,070. The homeownership rate of 71.9% is higher than the national rate of 64.8%.
Educational attainment in Caroline County reflects 17.6% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 6.0% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 31.2 minutes each way.
Caroline County Population History (2010-2024)
The county of Caroline County had a population of 33,054 in 2010 and 34,248 in 2024, a 3.6% growth over 14 years. The peak was 34,248 in 2024. Average annual growth rate: 0.26%.
34,248
Population (2024)
33,054
Population (2010)
34,248
Peak (2024)
0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 33,054 |
| 2011 | 32,890 |
| 2012 | 32,636 |
| 2013 | 32,651 |
| 2014 | 32,542 |
| 2015 | 32,601 |
| 2016 | 32,834 |
| 2017 | 33,122 |
| 2018 | 33,341 |
| 2019 | 33,509 |
| 2020 | 33,277 |
| 2021 | 33,443 |
| 2022 | 33,539 |
| 2023 | 33,838 |
| 2024 | 34,248 |
Race & Ethnicity
| White | 74.1% |
| Black or African American | 13.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.7% |
| Two or More Races | 0.0% |
Age & Sex
39.8
Median Age
50.8%
Female
49.2%
Male
17.1%
Age 65+
Age Distribution
Children (under 15): 19.4% · Seniors (65+): 17.1%
Income & Poverty
| Median household income | $66,368$-35,284 vs state |
| Mean household income | $87,193 |
| Per-capita income | $33,898 |
| Poverty rate | 9.4%+3.1% vs state |
| Unemployment rate | 3.4% |
| Employment-to-population | 59.6% |
Top Industries by Employment
The largest employment sector in Caroline County is professional & business services, accounting for 22.6% of workers.
How residents commute
0.5%
Drive alone
2.6%
Carpool
81.9%
Public transit
6.0%
Work from home
31.2 min
Avg commute
Housing
$272,400$-125,300 vs state
Median home value
$1,070
Median rent
71.9%
Homeownership rate
13,516
Total housing units
90.1%
Occupied
9.9%
Vacant
28.1%
Renter-occupied
Social & access
92.9%
With health insurance
91.8%
With broadband internet
23.3%
Foreign-born
6.4%
Veterans (18+)
15.2%
With a disability
91.3%
Speak language other than English at home
Education
84.0%
High School+
17.6%
Bachelor's+
Largest cities in Maryland
Other counties in Maryland
Part of Maryland
Metro areas in Maryland
County rankings
Frequently Asked Questions
Caroline County, Maryland has a population of 33,406 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 20th-largest county in Maryland. Population density is 105 people per square mile.
The population of Caroline County has grown 3.6% since 2010 (33,054 → 34,248), a +0.25% annualized rate.
The median household income in Caroline County, Maryland is $66,368, with mean (average) household income of $87,193 and per-capita income of $33,898. 9.4% of residents live below the federal poverty level.
In Caroline County, the largest racial and ethnic groups are White (74.1%), Black or African American (13.8%), Hispanic or Latino (2.7%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Caroline County, Maryland is 39.8 years. Residents are 50.8% female and 49.2% male.
The median home value in Caroline County is $272,400 and median monthly rent is $1,070. 71.9% of occupied housing units are owner-occupied. The county has 13,516 total housing units, 9.9% of which are vacant.
The largest employment sector in Caroline County, Maryland is professional, scientific, and management services, employing 22.6% of workers. The unemployment rate is 3.4%.
Baltimore is among the largest cities associated with Caroline County, Maryland, with a population of 577,193.
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Statewide data for Maryland
Population, race, income, age, and trends across Maryland
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.