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Waukesha County, WI Right to Farm: Agricultural Zoning Protection (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Base district
A-1 Agricultural District (§7.01)
Under 3-acre lots
Recreational chickens only, crops need waiver
3-20 acre lots
1 livestock unit/20 poultry per acre over 3
Over 20 acres
Hogs/furbearers need Conditional Use
Manure rules
Must follow NR151 and ATCP50 standards
Penalty
$50-$1,000 forfeiture per offense (§22.03(1))

Summary

The A-1 Agricultural District, the base zoning for most unincorporated Waukesha County farmland, permits farm uses by right but scales animal-keeping to lot size: small lots are limited to recreational chickens, mid-size parcels get one livestock unit per acre, and operations over 20 acres get the broadest allowance, with hogs and fur-bearing animals needing a Conditional Use permit.

These county ordinances apply to unincorporated areas of Waukesha County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(3) Agricultural or Farm Uses. Such uses, as defined and listed in Section 2.02(13)(A) of this Ordinance, shall be permitted in accordance with the following standards except that fur farms, pig farms, and commercial poultry and egg production, and boarding stables are subject to the Conditional Use provisions of Section 3.08. ... (D) For lots or farms greater than twenty acres in size. Agricultural or farm uses as described in Section 7.01(3) above, except that the keeping of hogs and fur-bearing animals can be considered as a Conditional Use, and the keeping of male goats is a permitted use. Those practicing Agricultural or Farm Uses under this section must provide adequate food, forage, water, pasture, shelter and fencing and must comply with standard manure disposal practices such as those found in NR151 and ATCP50.

Full Breakdown

Sec. 01 of the Basic Zoning Ordinance sets the Permitted Uses for the A-1 Agricultural District, the zoning that applies across most of the county's unincorporated towns absent a more specific overlay. Sec. 01(3) permits "Agricultural or Farm Uses," as defined in Sec. " The standards step up with acreage: lots under three acres are limited to Recreational Chicken Uses, with crop or forage production requiring a Zoning Administrator waiver on the Town Plan Commission's recommendation; three-to-five-acre lots get one head of livestock or 20 poultry for the first three acres plus one more per additional acre; five-to-twenty-acre lots follow the same formula with a waiver path for extra animals; and lots over 20 acres may keep livestock without that acreage formula, though hogs and fur-bearing animals remain a Conditional Use and male goats become a permitted use outright.

Sec. 01(3)'s closing paragraph requires anyone farming under this section to "provide adequate food, forage, water, pasture, shelter and fencing" and to follow manure-disposal standards under state NR151 and ATCP50 rules, submitting a manure management plan to the Department of Parks and Land Use if the Zoning Administrator asks for one. The district also allows horticulture with a Site Plan, specified accessory buildings including stables set back 50 feet from a property line, and roadside stands under Sec. 14(2)(E), rounding out the by-right agricultural framework for the towns.

Violations & Fines

Exceeding the animal-density formula for a lot's acreage, or keeping hogs, fur-bearing animals, or commercial poultry without the required Conditional Use permit, is a zoning violation under Sec. 22.03(1): a $50-$1,000 forfeiture per offense, with each day of noncompliance a separate offense, plus costs and up to six months' jail in default. The county may also pursue injunctive relief or nuisance abatement instead of a forfeiture action.

Frequently Asked Questions

How much livestock can I keep on my property in unincorporated Waukesha County?
It depends on lot size under Sec. 7.01(3) of the A-1 Agricultural District: under three acres, only recreational chickens; three to twenty acres, one head of livestock or 20 poultry per acre beyond the first three; over 20 acres, livestock is allowed without that formula, though hogs and fur-bearing animals need a Conditional Use permit.
Do I need a permit to keep hogs on my farm?
Yes, on any A-1 lot. Sec. 7.01(3) subjects hog farms and fur farms to the Conditional Use provisions of Sec. 3.08 regardless of acreage, unlike other livestock which scales by lot size without a separate permit.
What manure standards apply to farms in the A-1 District?
Sec. 7.01(3) requires standard manure disposal practices consistent with state NR151 and ATCP50 rules, and the Zoning Administrator can require a written manure management plan submitted to the Department of Parks and Land Use for review and approval.

Sources & Official References

Other rules in Waukesha County

All Waukesha County rules

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