The Root Mean Square Error (RMSE) scores at both the tweet-level and zip code-level for all models, along with the average of the 5-fold cross-validated RMSE scores for the predictive models.

Models specified with (*) do not include any zip code-level features. The other models include all zip code-level features, in addition to text. The RMSE scores for the predictive models, with and without sentiment as a feature, are reported as without sentiment / with sentiment. Cross-validation is not applicable for baseline models.