Converting lat/longs to Uber's H3 [1][2] system might prove useful here. Because H3 indexes are hierarchical, you can easily truncate them to obtain less precis

Converting lat/longs to Uber's H3 [1][2] system might prove useful here. Because H3 indexes are hierarchical, you can easily truncate them to obtain less precision. And then convert them back into lat/longs after truncation. [1] https://github.com/uber/h3 https://github.com/uber/h3 [2] https://eng.uber.com/h3/ https://eng.uber.com/h3/