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
In Caroline County, home values do the distinguishing — a median of $272,400. Caroline County is a county in Maryland with a population of 33,406. It ranks #20 among counties in Maryland by population.
The typical household here earns about $66,368, below the US median of $78,538. The poverty rate is 9.4%, below the national 12.4%. The median home value is $272,400, with typical rent around $1,070.
College attainment is 17.6%, below the national 35.0%. Remote work is below the national 14.0% at 6.0%, and the average commute runs about 31 minutes each way.
High housing values reframe the income picture in Caroline County — even solid earnings stretch less against home prices and rents at this level.
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.
Caroline County, MD Climate
Caroline County, MD has an average annual temperature of 13.1°C (56°F) and receives about 1114 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
13.1°C
Avg Temp
1114
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 1° / 34° | 95 mm |
| February | 2° / 36° | 75 mm |
| March | 7° / 44° | 105 mm |
| April | 12° / 53° | 88 mm |
| May | 17° / 63° | 102 mm |
| June | 22° / 72° | 92 mm |
| July | 25° / 77° | 108 mm |
| August | 24° / 75° | 105 mm |
| September | 20° / 69° | 97 mm |
| October | 14° / 57° | 78 mm |
| November | 9° / 48° | 84 mm |
| December | 4° / 39° | 85 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Caroline County, MD
The most comfortable months to visit Caroline County, MD are typically September, June and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 31°C high). The coldest is January (near -4°C low). July is usually the wettest month.
Where to stay near Caroline County
Visiting or relocating to Caroline County, MD? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near Caroline County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.