The data from the State Similarity Index was used to cluster states into different regions. This resulted in 6 distinct macroregions: The West, The South, The Midwest, The Northeast, Alaska, and Hawaii. A map of the different regions can be found on this page. However, it may be best to look at states as a connected web, not as hierarchical clusters, since the data reveals the relationship of states to each other is more of a gradient than having clearly defined clusters.
Based on the following article:
https://objectivelists.com/2023/01/07...
State Similarity Index Explanation:
https://objectivelists.com/2022/10/08...