Yes, there are some examples of this:

Keene NH:

• https://en.wikipedia.org/wiki/Keene%2C_New_Hampshire#Free_Keene_activism
• https://freekeene.com/

Próspera, Honduras - https://news.bitcoin.com/honduran-city-of-prospera-adopts-bitcoin-as-unit-of-account/

Madeira - https://www.youtube.com/watch?v=cqWxeobUdSI