How many people live in Carroll County, MD?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 177,100 people living in Carroll County, MD. That makes Carroll County the ninth-most populous county in Maryland. It is home to 2.8% of people living in the state.
177K
population of Carroll County, MD (2024)
2.8%
County share of the Maryland population (2024)
About 177,100 people lived in Carroll County, MD in 2024.
Population estimates, 2000–2024
What are Carroll County, MD’s age demographics?
About 33,300 Carroll County, MD residents are aged 65 and older in 2024. That represents 18.8% of its population. For comparison, the age group represents 17.7% of Maryland’s population and 18% in the US overall.
Another 39,000 Carroll County residents, or 22% of the population, were children under 18. For comparison, the age group represents 22% of Maryland’s population and 21.6% in the US overall.
A lower share of Carroll County, MD's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Carroll County, MD’s racial and ethnic demographics?
Non-Hispanic white residents make up 84.5% of the Carroll County, MD population, higher than the national share of 57.5%.
In contrast, Carroll County’s Hispanic population accounts for 5.7%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 4.5% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Carroll County, MD has a higher share of a non-Hispanic white population than Maryland as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Carroll County, MD is Westminster with about 20,700 residents in 2024.
Cities and towns in Carroll County, MD ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Westminster | 20,662 |
| 2. | Taneytown | 8,293 |
| 3. | Mount Airy (pt.) | 6,351 |
| 4. | Hampstead | 6,288 |
| 5. | Manchester | 5,440 |
| 6. | Sykesville | 4,622 |
| 7. | New Windsor | 1,758 |
| 8. | Union Bridge | 946 |
| 9. | Balance of Carroll County | 122,748 |
Keep exploring
Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
