Walworth County, WI Right to Farm: Agricultural Zoning Protection (2026)
Key Facts
- District
- A-1 Prime Agricultural Land District, § 74-51
- Minimum farm lot
- 35 acres minimum, 300-foot minimum width
- Soil basis
- Class I, II, III soils under Wis. Stats. ch. 91
- Extra farm residence
- One additional residence per 35 acres, conditional use
- Penalty
- $100-$1,000 forfeiture per violation plus costs
Summary
Walworth County's A-1 Prime Agricultural Land District is a Farmland Preservation District built to keep highly productive farmland in food and fiber production. Section 74-51 declares agriculture the highest and best use of A-1 land and requires every structure and improvement to stay consistent with agricultural use, limiting non-farm encroachment across the unincorporated towns.
A-1 Prime agricultural land district. ... A Farmland Preservation District. The primary purpose of this district is to maintain highly productive exclusive agricultural lands in food and fiber production by effectively limiting encroachment of non-agricultural development and minimizing land use conflicts among incompatible uses. ... As a matter of policy, it is hereby determined that the highest and best use of these lands is agriculture. All structures and improvements must be consistent with agricultural use. (Wis. Stats. ch. 91)
Full Breakdown
Section 74-51 of the Walworth County Code establishes the A-1 Prime Agricultural Land District as a Farmland Preservation District whose purpose is to maintain highly productive exclusive agricultural lands in food and fiber production by effectively limiting encroachment of non-agricultural development and minimizing land use conflicts among incompatible uses. S. Natural Resource Conservation Service and identified in the county farmland preservation plan under Wis. ch. 91. Principal uses permitted outright include farm residences, dairying, grazing, livestock raising, orchards, plant nurseries and Christmas tree production, poultry raising, crop and forage production, sod farming, vegetable raising, viticulture, apiculture, and enrolling land in a federal or state agricultural conservation payment program.
Conditional uses reviewed under § 74-61, such as additional farm residences beyond one per 35 acres, veterinarian facilities for livestock, livestock sales facilities, and a farm family business limited to two non-family employees, must be found consistent with the farmland preservation district's purpose, reasonable given alternative locations, and structured to minimize conversion of agricultural land and any impairment of surrounding protected farmland. The County Zoning Agency views the site and weighs testimony at a public hearing before approving any conditional use in the district. Because the ordinance ties all structures and improvements to agricultural use, a landowner cannot introduce commercial or residential development in A-1 without first securing a conditional use permit or rezoning, and violations are enforced the same way as the rest of chapter 74. The area table for A-1 sets a minimum farm lot size of 35 acres with a minimum width of 300 feet.
Violations & Fines
A structure or use in the A-1 district that is not consistent with agricultural use, or a conditional use operated outside its approved conditions, violates chapter 74 and is subject to § 74-47's forfeiture of $100 to $1,000 per violation plus costs, with up to 30 days in jail for nonpayment and each continuing day treated as a separate offense enforceable as a public nuisance.
Frequently Asked Questions
What is the A-1 district in Walworth County?
Can I build a second house on my A-1 farm?
What is the minimum lot size in the A-1 district?
Sources & Official References
Other rules in Walworth County
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