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Why are some locations more attractive targets for transnational terrorism than others? Remarkably little is known about the local-level conditions and attributes that determine precisely where transnational terror attacks occur within targeted countries. To date, quantitative terrorism research identifies country- or region-level correlates of terrorism, neglecting possible local factors. In this study, we posit five local-level factors that increase the likelihood of a terror attack: security of a target, accessibility, symbolism, material harm, and exclusion. Using a variety of estimation strategies, including multilevel, negative binomial, and propensity score matching models, we regress new sub-national geographically coded transnational terrorism data on various sub-national measures that might theoretically increase the likelihood of a terror attack. The results demonstrate that although country- and region-level factors matter …