Hah! Actually, Salt Lake City in Utah is sort of vaguely like that, though with street numbers (in the usual units of 100 per block) rather than latitude and l

Hah! Actually, Salt Lake City in Utah is sort of vaguely like that, though with street numbers (in the usual units of 100 per block) rather than latitude and longitude per se. The addresses are things like "250W 500S, Salt Lake City" -- which is going to be on the fifth street north of the Temple (and marked as 500S on the street signs), two and a half blocks west of the north-south street that's centered on the Temple (which is Main street, not W. Temple Street. W. Temple Street is what would be 100W if it weren't named). I'm not sure what the history is on canonical orderings of the two parts of the address. Currently it seems to be usually the one that's the "street number" followed by the one that's the "street name", but I'm not sure if that's a result of auto-regularization by systems that assume such a thing, or if it's historical.