20th Avenue is one of the numbered avenues of the Bath Beach grid.
The station stands where Bensonhurst meets Bath Beach. In Bath Beach the numbered cross streets carry the word ‘Bay’, but every third one is replaced by a two-way numbered avenue, from 14th to 28th Avenue. Bath Beach itself, once part of the old town of New Utrecht, was named after the English spa of Bath, in Somerset, and developed as a seaside retreat.