In order to accomplish any or all of the purposes of a zoning ordinance enumerated under N.H. Rev. Stat. § 674:17, the local legislative body may divide the municipality into districts of a number, shape and area as may be deemed best suited to carry out the purposes of N.H. Rev. Stat. § 674:17. The local legislative body may regulate and restrict the erection, construction, reconstruction, alteration, repair, or use of buildings, structures, or land within each district which it creates. All regulations shall be uniform for each class or kind of buildings throughout each district, but the regulations in one district may differ from those in other districts.