The main reason for State and ZIP fields haven't been added as default set is because those tend to change frequently and need constant updates. That said, I can see how it can be an issue, and also concur that we need to implement openstreetmap.org as the default alternative to Google API, especially now that they've changed free quotas so drastically. 

SO, here we go - https://github.com/unaio/una/issues/1519