Urban forests are often where non-native invasive pests are first introduced via global trade. From there, they can spread into natural forests. And notably, urban forests also experience their own impacts from these pests. Unfortunately though, we don’t fully understand the make-up of urban forests in the United States, meaning what tree species are present and in what quantities. While a few communities do have comprehensive urban inventories and others have inventories of at least their street trees, most communities are not inventoried. However, to track invasive forest pests and the threats they impose, we need to be able to represent the urban distributions of their host trees. We developed a modeling approach that uses existing data to estimate numbers of trees in the thousands of urban areas across the Eastern and Central U.S. that don’t have inventories. We did this for three prominent genera: ash, oak, and maple. Now, we’re adapting the approach to model urban distributions of other trees.