Business planning by county

Maryland county reference

24 counties and county equivalents in Maryland. Search names or FIPS codes, compare Census geography and keep the original sources with your work.

• Allegany County

  Maryland · FIPS 24001

  66,848 residents · 2025 estimate

• Anne Arundel County

  Maryland · FIPS 24003

  603,380 residents · 2025 estimate

• Baltimore city

  Maryland · FIPS 24510

  569,997 residents · 2025 estimate

• Baltimore County

  Maryland · FIPS 24005

  847,650 residents · 2025 estimate

• Calvert County

  Maryland · FIPS 24009

  94,484 residents · 2025 estimate

• Caroline County

  Maryland · FIPS 24011

  34,116 residents · 2025 estimate

• Carroll County

  Maryland · FIPS 24013

  176,677 residents · 2025 estimate

• Cecil County

  Maryland · FIPS 24015

  107,131 residents · 2025 estimate

• Charles County

  Maryland · FIPS 24017

  176,593 residents · 2025 estimate

• Dorchester County

  Maryland · FIPS 24019

  33,628 residents · 2025 estimate

• Frederick County

  Maryland · FIPS 24021

  302,883 residents · 2025 estimate

• Garrett County

  Maryland · FIPS 24023

  28,370 residents · 2025 estimate

• Harford County

  Maryland · FIPS 24025

  266,446 residents · 2025 estimate

• Howard County

  Maryland · FIPS 24027

  339,183 residents · 2025 estimate

• Kent County

  Maryland · FIPS 24029

  19,565 residents · 2025 estimate

• Montgomery County

  Maryland · FIPS 24031

  1,074,582 residents · 2025 estimate

• Prince George's County

  Maryland · FIPS 24033

  970,374 residents · 2025 estimate

• Queen Anne's County

  Maryland · FIPS 24035

  54,448 residents · 2025 estimate

• Somerset County

  Maryland · FIPS 24039

  24,973 residents · 2025 estimate

• St. Mary's County

  Maryland · FIPS 24037

  116,692 residents · 2025 estimate

• Talbot County

  Maryland · FIPS 24041

  38,238 residents · 2025 estimate

• Washington County

  Maryland · FIPS 24043

  157,731 residents · 2025 estimate

• Wicomico County

  Maryland · FIPS 24045

  106,899 residents · 2025 estimate

• Worcester County

  Maryland · FIPS 24047

  54,459 residents · 2025 estimate

Use the county data

Use a county reference when organizing a market-research brief, outreach territory or business calculation. County population gives geographic context; it does not measure the number of qualified customers.

These are geographic reference records, not contact lists or verified sales leads.

Geography: 2025 U.S. Census Gazetteer. Population: Vintage 2025 estimates, July 1, 2025. County equivalents include parishes, boroughs, independent cities and planning regions. Puerto Rico population is not supplied by this population file.