 bath is a borough in northampton county, pennsylvania, united states. it is named for bath, somerset, england. it is located in the lehigh valley region of the state with a population of 2,699 according to the 2011 census. ==history== the bath borough is located at the head of the monocacy valley in an area of the lehigh valley that was once rich in agriculture. the greater area of the town, however, lies east of the monocacy valley. bath was established in 1728 as a scotch-irish settlement before the american revolution as the first settlement by white people in the forks of the delaware. it is named for bath, somerset, england by margaret delancey, who sold land under her father, lieutenant colonel of the continental army, william allen, in the 1700s. on march 3, 1737, the 247 acres of land that is currently inside the boundaries of bath was purchased and surveyed for daniel craig. according to borough historians, this land spans from chestnut street to the north of northampton street. william allen conveyed the greater part of 
Boroughs_in_Northampton_County,_Pennsylvania Boroughs_in_Pennsylvania Populated_places_established_in_1816