Settled: 1752
Incorporated: 1763
First town meeting: 1766
Population: 802 (as of 2017)
Registered voters: 516
Tax rate: (as of 2019)$28.01 (Town: $8.19, School: $14.33, State Education: $1.92County: $3.57) 2019 Sales Ratio: 100.6%

Find out more here.
Schools: Gilsum is a member of the Monadnock Regional School District. K-6 Children attend the Gilsum STEAM Academy link, 640 Rte 10, Gilsum, NH.  Grades 7-12 attend Monadnock Regional Middle High School link 590 Old Homestead Hwy, Swanzey, NH 03446

Why do they call it Gilsum?
Gilsum was originally formed in 1752 as the town of Boyle. According to the town history, it was renamed Gilsum when incorporated in 1763 in honor of two prominent families in town: the Gilberts and the Sumners.

What is Gilsum known for?

• The Stone Arch Bridge is an engineering marvel. Created by dry-stacked stones, it has spanned the Ashuelot River, connecting Route 10 with Surry Road, since the late 1,800’s.
• A rich mining history. Gilsum was a center for mining of minerals such as feldspar, mica, beryl and quartz in the 1940s and 1950s. Inactive mines still dot the area. One, the Beauregard mine, is still actively operated by Toveco for its beryl, quartz and mica. Once mined commercially for use in electronics, today beryl cyrstals are prized by mineral collectors. Specimens can be seen at the annual Rock Swap & Mineral Show.
• Lucy Mack, mother of Mormon Church founder and prophet Joseph Smith, Jr. was born here in 1775.
• Bear Den Geological State Park Link includes trails through steep, rock ledges. Hikers can view “pot holes” created by glacial movements.
• Vessel Rock, on Vessel Rock Road, is a giant boulder that’s nearly as large as the home beside it.
• The Gilsum Rock Swap & Mineral Show Link, which takes place each summer, is a nationally known mineral show. The event, which raises money for children’s recreation programs, has been supported by volunteers since 1964.