Hillsborough County

Hillsborough County is an administrative region in southern New Hampshire that encompasses two major cities, Manchester and Nashua, alongside nearly thirty smaller municipalities spread across diverse terrain. The area combines urban centers with rural towns and natural landscapes, creating varied geography throughout the region.

This county was established in 1769 and named after Wills Hill, Earl of Hillsborough, who served as British Secretary of State for the Colonies during that era. It gradually grew into a significant commercial and administrative center for New England.

The population of 422,937 residents makes this territory the most densely inhabited county in northern New England, forming part of the Boston metropolitan region.

The region is best explored by car, traveling between the main cities and surrounding towns to access different attractions and natural areas. Pack Monadnock Mountain offers hiking trails for various skill levels, with paths ranging from easy walks to more challenging climbs.

County administration operates from dual seats in Manchester and Nashua, a system implemented in 1869 after relocating from Amherst and Milford.

Location: New Hampshire

Inception: 1769

Capital city: Manchester

Shares border with: Merrimack County, Middlesex County, Rockingham County, Essex County, Worcester County, Cheshire County, Sullivan County

Website: http://hillsboroughcountynh.org

GPS coordinates: 42.89558,-71.58274

Latest update: December 6, 2025 21:23