Connected products, services, and platforms are increasingly appearing in cities as shared public resources and civic management tools, reshaping the way we live within urban environments. By understanding diverse populations within cities and by prototyping solutions to address civic challenges, designers can create experiences that provide value for citizens, government, and commerce. As the world becomes more urbanized and connected, common design methods—such as creative problem solving, prototyping, and testing with people—can be applied to help cities, allowing civic stakeholders and commercial interests to meet the rising expectations of citizens and to improve infrastructure, management, and quality of life.