County Information

Downtown Silver Spring, Maryland

Formerly a part of Frederick County, Montgomery County was formed in 1776. The county was named after General Richard Montgomery, who was the first general to give his life fighting for American Independence. Here are a few interesting facts and statistics about our county.

Montgomery County Size and Population

  • Montgomery County has a total area of 507 square miles.
  • The county consists of 3 cities, 12 towns, 4 villages, and 33 census-designated places, and 5 unincorporated communities.
  • Approximately 1 million people make their home in Montgomery.
  • Montgomery is a part of the Washington Metropolitan area, which consists of Washington, DC, 7 counties in Maryland, and 5 counties in Virginia; this area has a total of 5.8 million residents.
  • This is the second richest county in the state of Maryland, in terms of per-capita income.
  • About 7 million tourists visit Montgomery County every year.
  • There are over 156,000 school-aged children throughout the county.


  • There are nearly 2 dozen lakes scattered throughout Montgomery County, which make up part of the 16 square miles of water throughout the county.
  • The Potomac River is the only large river that passes through the county.
  • There are nearly 40 islands located in Montgomery County, all of them within the waters of the Potomac River.
  • Montgomery’s county seat is Rockville, Maryland.


FY 18 Community Report on Tourism
Download the Fiscal Year 2018 Community Report on Tourism