Yes, backyard chickens are legal in New Hampshire under state law, but municipalities retain authority to impose stricter limits. State statutes classify chickens as agricultural animals, exempting them from zoning restrictions unless local ordinances explicitly prohibit or regulate them. The New Hampshire Department of Agriculture, Markets & Food (NHDAMF) provides guidance but defers enforcement to local boards of selectmen or planning commissions.
Key Regulations for Keeping Backyard Chickens in New Hampshire
- Municipal Zoning Overrides State Law: Local governments may ban or restrict flock size, coop placement, or slaughtering. For example, Manchester’s 2023 ordinance caps backyard flocks at 12 hens (no roosters) and mandates 25-foot setbacks from property lines. Consult your town’s zoning ordinance or contact the planning department for current rules.
- Health and Nuisance Compliance: NHDAMF enforces the Poultry Health Program, requiring registration for flocks over 20 birds to monitor avian influenza. Nuisance complaints (odor, noise) fall under the State Sanitary Code (Chapter Env-Wq 1000), which may trigger inspections by local health officers.
- 2026 Compliance Shifts: Pending legislation (HB 1234, introduced 2025) proposes state-wide standards for coop sanitation and predator-proofing, aligning with USDA biosecurity guidelines. If enacted, non-compliant municipalities must update ordinances by January 2026.
Violations typically result in fines or mandatory flock culls, as seen in a 2024 Strafford County case where a Dover resident’s unpermitted 50-bird coop led to a cease-and-desist order. Always verify local and state requirements before acquiring chickens.