Business planning by county
Nantucket County, Massachusetts
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.
Identify the right place
Nantucket County is a county or county equivalent in Massachusetts. Its five-digit FIPS code is 25019; preserve the leading zero when storing county codes as text. The Gazetteer lists 257.46 square miles of water and a representative point at 41.293392, -70.102164. That point identifies the geography; it is not a street address or a site boundary.
Open this county in Census data · Download this county as JSON
Business planning by county checklist
- Define who the offer is for before selecting an area.
- Distinguish residents, businesses and potential customers in the calculation.
- Keep source dates and assumptions attached to your working file.
These are geographic reference records, not contact lists or verified sales leads.
Sources and interpretation
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.
Population is an estimate, not a live count. Gazetteer land and water measures describe the geographic area; they do not measure service availability, households, businesses or market demand. Match the FIPS code and source vintage when joining another dataset.
More county references in Massachusetts
- Middlesex County
Massachusetts · FIPS 25017
1,669,979 residents · 2025 estimate
- Norfolk County
Massachusetts · FIPS 25021
739,749 residents · 2025 estimate