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Open AccessArticle

SNAPScapes: Using Geodemographic Segmentation to Classify the Food Access Landscape

Department of Geography and Earth Sciences, University of North Carolina at Charlotte, Charlotte, NC 20836, USA
Authors to whom correspondence should be addressed.
Urban Sci. 2018, 2(3), 71;
Received: 14 July 2018 / Revised: 10 August 2018 / Accepted: 13 August 2018 / Published: 21 August 2018
(This article belongs to the Special Issue Urban Food Security)
PDF [4712 KB, uploaded 21 August 2018]


Scholars are in agreement that the local food environment is shaped by a multitude of factors from socioeconomic characteristics to transportation options, as well as the availability and distance to various food establishments. Despite this, most place-based indicators of “food deserts”, including those identified as so by the US Department of Agriculture (USDA), only include a limited number of factors in their designation. In this article, we adopt a geodemographic approach to classifying the food access landscape that takes a multivariate approach to describing the food access landscape. Our method combines socioeconomic indicators, distance measurements to Supplemental Nutrition Assistance Program (SNAP) participating stores, and neighborhood walkability using a k-means clustering approach and North Carolina as a case study. We identified seven distinct food access types: three rural and four urban. These classes were subsequently prioritized based on their defining characteristics and specific policy recommendations were identified. Overall, compared to the USDA’s food desert calculation, our approach identified a broader swath of high-needs areas and highlights neighborhoods that may be overlooked for intervention when using simple distance-based methods. View Full-Text
Keywords: food access; food insecurity; geodemographics; GIS; SNAP; North Carolina food access; food insecurity; geodemographics; GIS; SNAP; North Carolina

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Major, E.; Delmelle, E.C.; Delmelle, E. SNAPScapes: Using Geodemographic Segmentation to Classify the Food Access Landscape. Urban Sci. 2018, 2, 71.

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