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Understanding the demographics of a vacation destination

Nantucket’s population soars to 45,000+ each summer, but the Census Bureau maintains that 11,229 permanent residents live on the island. Without an accurate understanding of both the island’s year-round population as well as the seasonal variation, the island won’t receive the proper services needed to support the community and its varying needs throughout the course of the year.


A solid data partnership

Civis was tapped by the Nantucket Data Platform (NDP), a private organization dedicated to more accurately understanding the island’s demographics. Civis contributed its proprietary dataset while NDP added local data from the Nantucket town census and property assessor records to create the most comprehensive picture possible. The combined data was uploaded into the Civis Platform.


A robust, single source of truth

Civis cleaned, standardized, and geo-coded the NDP data before unifying and reconciling the different datasets for a single view of the island’s residents. Civis then enriched the data by matching NDP data to Civis’s proprietary dataset, giving the group a lens into new categories such as parental status, marital status, race, religion, sub-ethnicity, household income, and more.

Using the Civis Platform, NDP seamlessly added additional data (i.e. weather and economic activity) to further enhance their dataset, and can easily share insights with non-technical stakeholders using Civis’s built-in reporting tools.

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“Seasonal Variation in Population Makes it Very Difficult to Assess The Level of Support Nantucket Needs.”

“With Civis, we’re able to understand our community with a new level of scientific precision.”

Victoria Powers
Chief Technology OfficerNantucket Data Platform


Civis’s analysis found 17,893 total adult residents, a considerably larger number than the Census estimates. They also found that 74% of them are likely permanent residents, while 26% are likely part-time residents. These part-time residents tend to be older than permanent residents and more likely to be married than unmarried.

NDP is using this data to guide strategic planning, make the case for better services for the island’s population, and help local businesses understand the market on the island. Additionally, they are speaking with several other seasonal and commuter-heavy communities interested in applying their “effective population” methodology.

data nantucket