The county of Hillsborough is bounded thus: Beginning at the bound between the towns of Pelham and Salem on the state line; thence westerly by the state line to the southeast corner of Rindge; thence by the easterly lines of Rindge, Jaffrey, Dublin, Nelson, Stoddard and Washington to the northwest corner of Hillsborough; thence by the southerly line of the county of Merrimack to the westerly line of the county of Rockingham; thence by the westerly line of the county of Rockingham to the bound first mentioned.
Source. RS 16:4. CS 17:4. GS 19:7. GL 20:7. PS 21:7. PL 20:7. RL 28:7.