How many people live in ?

Updated annually
In 2025, there were 6.27 million people living in Maryland. That makes Maryland the 19th-most populous state, home to 1.8% of people living in the US.

6.27M

population of Maryland (2025)

1.8%

Maryland share of the US population (2025)
The population of Maryland was about 5.3 times higher than it was in 1900. Between 2024 and 2025, the population of Maryland grew by about 20,000 people.

About 6.27 million people lived in Maryland in 2025. That's about 5.3 times more than in 1900.

Annual population estimates

What are Maryland's age demographics?

About 1.1 million Maryland residents were aged 65 and older in 2024. That represents 17.7% of the state’s population compared with 18% in the US overall.
Another 1.37 million Maryland residents, or 22% of the state’s population, were aged under 18. For comparison, children account for 21.6% of the US population.

A lower share of Maryland's population is 65 and older than the US overall.

Population share by age group (2024)

What are Maryland's racial and ethnic demographics?

A state’s population may have racial and ethnic differences compared with the US overall. These figures reflect how people identified their race alone (not in combination with other races), and separate Hispanic or Latino ethnicity, following Census Bureau reporting standards.
Non-Hispanic white residents make up 73% of Maryland’s population, higher than the national share of 57.5%. Maryland also has a larger share of people identifying as non-Hispanic Black or African American (30.2%) than the US overall (12.6%).
In contrast, Maryland’s Hispanic population accounted for 13.3%, below the 20% share nationwide. The non-Hispanic white population makes up 46.6% of the state, compared with 57.5% nationally.

A higher share of Maryland's population is non-Hispanic Black or African American than the US overall.

Population share by race and ethnicity (2024)

What are Maryland's most populous counties?

In 2024, four out of 24 counties accounted for over half of Maryland’s population:
  • Montgomery County, 1.08 million (17.3% of the population)
  • Prince George's County, 966,600 (15.5%)
  • Baltimore County, 852,400 (13.6%)
  • Anne Arundel County, 602,400 (9.6%)

In 2024, Montgomery County was the most populous county in Maryland.

Population estimates

What are Maryland's most populous cities?

The largest city in Maryland is Baltimore with about 568,300 residents in 2024.

Cities and counties in Maryland ranked by population

Cities and counties in Maryland ranked by population
1.

Baltimore 

568,271
2.

Frederick 

89,537
3.

Gaithersburg 

70,686
4.

Rockville 

68,417
5.

Bowie 

58,421
6.

Hagerstown 

43,909
7.

Annapolis 

40,689
8.

College Park

34,667
9.

Salisbury 

33,616
10.

Laurel 

30,238

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.