Maryland Counties

Maryland Counties

by Vishul Malik



Many counties in Maryland are named after the relatives of the Barons Baltimore, who were the Maryland colony’s proprietors since its founding during 1634-1771.

How Many Counties in Maryland

The US state of Maryland has 23 counties and one independent city (Baltimore City). It makes up 24 major local jurisdictions in the state. Although Baltimore City is a municipality, it has the same jurisdictions as counties as the Maryland Constitution adopted in 1851.  Check this Maryland County Map which provides the location of all 23 counties on the Maryland Map.




Counties of Maryland

What are the 5 Biggest Counties in Maryland by Area?

The biggest counties in Maryland in terms of size are


  1. Worcester County: 695 sq mi (1,800 sq km)
  2. Baltimore County: 682 sq mi (1,766 sq km)
  3. Frederick County: 667 sq mi (1,728 sq km)
  4. Garrett County: 656 sq mi (1,699 sq km)
  5. Charles County: 643 sq mi (1,665 sq km)

What are the 5 Biggest Counties in Maryland by Population?

The biggest counties in Maryland in terms of population (2021) are

  1. Montgomery County: 1,062,061
  2. Prince George’s County: 967,201
  3. Baltimore County: 854,535
  4. Anne Arundel County: 588,261
  5. Baltimore City: 585,708

Which is the Smallest County in Maryland?

The smallest county in Maryland (in terms of population) is Kent County. Its population was 19,198 (as per United States Census Bureau 2021). In terms of size, Howard County is the smallest county. It has a total area of just 254 sq mi (658 km). However, the independent Baltimore City has the least total area (92 sq mi or 238 sq km).

What are the Oldest and Newest Counties in Maryland?

St. Mary’s County is the oldest in Maryland. It was established in 1637. Garrett County is the newest country, which was established in 1872.


Richest County in Maryland

Prince George’s County is the wealthiest. Its per capita income is US$48,916 (2014 Dollars).

What County in Maryland has the Most Millionaires?

Montgomery County has the most number of millionaires. Baltimore County has the second largest number of millionaires.

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