Business planning by county

Maine county reference

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

• Androscoggin County

  Maine · FIPS 23001

  116,487 residents · 2025 estimate

• Aroostook County

  Maine · FIPS 23003

  66,609 residents · 2025 estimate

• Cumberland County

  Maine · FIPS 23005

  317,222 residents · 2025 estimate

• Franklin County

  Maine · FIPS 23007

  30,824 residents · 2025 estimate

• Hancock County

  Maine · FIPS 23009

  57,171 residents · 2025 estimate

• Kennebec County

  Maine · FIPS 23011

  129,067 residents · 2025 estimate

• Knox County

  Maine · FIPS 23013

  41,117 residents · 2025 estimate

• Lincoln County

  Maine · FIPS 23015

  36,595 residents · 2025 estimate

• Oxford County

  Maine · FIPS 23017

  60,346 residents · 2025 estimate

• Penobscot County

  Maine · FIPS 23019

  157,967 residents · 2025 estimate

• Piscataquis County

  Maine · FIPS 23021

  17,409 residents · 2025 estimate

• Sagadahoc County

  Maine · FIPS 23023

  37,979 residents · 2025 estimate

• Somerset County

  Maine · FIPS 23025

  51,620 residents · 2025 estimate

• Waldo County

  Maine · FIPS 23027

  40,693 residents · 2025 estimate

• Washington County

  Maine · FIPS 23029

  31,334 residents · 2025 estimate

• York County

  Maine · FIPS 23031

  222,434 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.