Livestock Feedlots and CAFOs in Cassia County, Idaho

Siting a CAFO starts with an Agricultural Siting Permit -- before the conditional use application

Idaho's Local Land Use Planning Act (Idaho Code 67-6529) lets counties regulate the siting of animal feeding operations and facilities, and Cassia County has its own dedicated framework for it under Title 9, Chapter 11 of county code. In practice, that means an operator can't simply file a standard conditional use permit application for a new feedlot or dairy -- Cassia County's own forms include a distinct Affidavit of Application for an Agricultural Siting Permit as a required step tied to the CAFO conditional use process. If you're evaluating land specifically to build a new confined feeding operation, budget time and paperwork for this siting-permit step as a genuine prerequisite, not a formality layered on top of an otherwise-standard CUP application.

The county's own published forms list a CAFO Application, a CAFO Notice of Hearing, a CAFO Transfer Request Form, and a CAFO Annual Report Form as the standard set of documents involved in siting, operating, and eventually transferring a CAFO in Cassia County -- a fuller, more procedural picture than a one-time building permit.

A public hearing is part of the process, and it doesn't end at approval

The existence of a dedicated CAFO Notice of Hearing form indicates that siting a new confined animal feeding operation in Cassia County involves a public hearing step, not an administrative sign-off alone -- consistent with how Idaho's Local Land Use Planning Act generally treats conditional uses. For a buyer planning a new dairy or feedlot, that means neighboring landowners get a formal opportunity to weigh in before the county approves the operation, which can add real time and, potentially, real opposition to a siting timeline that a purchase contract's closing schedule may not have accounted for.

Two other pieces of the process matter for anyone buying rather than building from scratch. First, the county's CAFO Transfer Request Form indicates that an existing, already-permitted CAFO's permit doesn't automatically follow the land through a sale -- a specific transfer filing is part of changing ownership, so if you're buying an operating dairy or feedlot, confirm with the seller and the county exactly what needs to be filed at closing to keep the permit valid in your name. Second, the CAFO Annual Report Form indicates that reporting obligations continue for the life of the operation, not just at initial siting -- an ongoing compliance task a new owner inherits along with the operation itself.

The state stays out of it -- this is entirely a county-level function

It's worth being explicit about who doesn't regulate this: the Idaho State Department of Agriculture does not issue permits for feedlot construction and does not regulate how many animals a given premises can hold. Those decisions sit entirely with the county. That makes Cassia County's own Title 9, Chapter 11 framework, siting-permit affidavit, and hearing process the actual, binding rulebook for a CAFO here -- not a state standard you could look up once and apply the same way across Idaho counties. A dairy or feedlot sited in a neighboring county under that county's own standards tells you nothing reliable about what Cassia County will require.

This also connects directly to the county's 2024 Agricultural Protection Area ordinance covered on the county hub: that ordinance shields a designated, properly-sited operation from later nuisance complaints, but it does nothing to shortcut the siting process itself. A CAFO still has to clear the Agricultural Siting Permit, conditional use, and public hearing steps described here before protection area status becomes relevant at all.

Practical steps

1. If you're planning a new feedlot or dairy: get the current Agricultural Siting Permit affidavit and CAFO conditional use application from Cassia County Zoning and Building before making purchase or financing decisions premised on a specific timeline.
2. If you're buying an existing, operating CAFO: confirm exactly what the CAFO Transfer Request process requires and whether it needs to be completed at or before closing to keep the operation's permit valid.
3. If you're buying rural-residential or recreational land near an existing dairy or feedlot: ask whether that operation holds a current CAFO permit and whether it sits inside a designated Agricultural Protection Area, since that status affects your future nuisance-complaint options (see the county hub).
4. Confirm current annual reporting obligations directly with the county if acquiring an operating CAFO, since this is an ongoing compliance duty that transfers with the operation, not a one-time approval.