Poultry Operations and Nutrient Management in Wicomico County, Maryland

Why poultry regulation is a real, practical issue for Wicomico County land

Salisbury, Wicomico County's seat, has been Perdue Farms' home since the family-owned poultry company's founding, and Perdue's continued presence -- combined with a large network of independent contract growers across Wicomico and the broader Eastern Shore -- has made large-scale poultry production one of the region's defining land uses. Statewide reporting from 2019 counted 503 active poultry operations across the Eastern Shore as a whole, raising more than 300 million birds that year, with the industry concentrated most heavily in exactly the counties, Wicomico included, closest to the major integrators' processing infrastructure.

For a land buyer, that concentration means poultry-specific rules are far more likely to be practically relevant here than in most other Maryland counties -- whether you're evaluating a parcel specifically to build poultry houses under contract with an integrator, buying farmland that already has houses on it, or simply purchasing rural acreage near an existing operation and wanting to understand what could be built nearby.

County-level zoning: Wicomico's updated poultry-house setbacks

Wicomico County's zoning code historically addressed poultry houses with a single, minimal line requiring a 100-foot setback from property lines. As poultry-house scale grew and nearby residents raised concerns about fan noise and dust, the County Council took up new regulations following a multi-month public debate. The regulations that passed increased the standard property-line setback to 200 feet, and separately addressed exhaust fans specifically: a fan facing away from any building on a neighboring property must sit at least 500 feet from the property line, rising to 600 feet if the fan faces a neighboring home or building directly.

County Council leadership described the change as a deliberate compromise -- one intended to let the poultry industry continue prospering within the county's agricultural district while giving nearby residents meaningfully more protection than the prior 100-foot standard offered. Because zoning ordinances can be amended again after initial passage, don't rely on this page (or any secondary source) as the final word on current setback distances -- confirm directly with the Wicomico County Department of Planning, Zoning & Community Development what the current, in-force requirements are before finalizing plans to build or before evaluating an existing structure's compliance.

State-level permitting: Maryland's AFO/CAFO/MAFO system and nutrient management

On top of county zoning, any operation crossing certain size thresholds needs approval under Maryland's statewide Animal Feeding Operation framework. A concentrated animal feeding operation (CAFO) needs a discharge permit from the Maryland Department of the Environment under both state and federal (Clean Water Act) authority, submitting a Notice of Intent and a required nutrient management plan per COMAR 26.08.04.09N(3)(b) and 40 CFR 122.42(e). A smaller but still regulated Maryland Animal Feeding Operation (MAFO) classification applies to dry-manure-handling poultry operations with total house capacity generally between 75,000 and 99,999 square feet, unless the operator instead submits MDE a Certificate of Conformance.

Any operation subject to this framework needs a nutrient management plan written by an MDA-certified nutrient management planner, meeting COMAR 15.20.07 and 15.20.08 standards -- and Maryland's Phosphorus Management Tool (PMT) rule, in effect since 2015, separately limits how much manure can be applied to certain fields based on their existing phosphorus saturation, with most of the roughly 123,000 acres affected statewide concentrated on the Eastern Shore. As of a 2026 regulatory update, qualifying low-risk operations (no-land, pasture-only, and organic poultry operations that don't spread manure) became eligible to extend nutrient management plans from three years to five -- a sign this is an actively evolving regulatory area, not a fixed, unchanging rulebook.

This framework was also, very recently, a live construction bottleneck rather than settled background law: the state's prior general AFO/CAFO discharge permit expired in July 2025, and Maryland's environmental agency did not issue its replacement until a new permit took effect May 8, 2026, meaning poultry farmers statewide -- including in Wicomico -- were not permitted to build new chicken houses for roughly nine months. The Delmarva Chicken Association estimated the gap stalled about $30 million in business investment across builders, realtors, lenders, equipment manufacturers, and farmers waiting to replace older houses. The new permit expires May 7, 2031. If you're evaluating Wicomico land specifically for new poultry-house construction, that freeze has now lifted, but confirm with MDE that any operation you're planning qualifies cleanly under the current, post-May-2026 permit rather than assuming the older framework still applies.

What to check before buying poultry-adjacent land in Wicomico County

Three concrete steps: (1) if you intend to build poultry houses, confirm current county setback requirements with the Planning, Zoning & Community Development office before assuming a specific parcel's dimensions can accommodate a house under current rules, since both the property-line and exhaust-fan setback figures described here reflect the ordinance as passed and could be revised further; (2) if the parcel already has poultry houses on it, ask whether the specific structure was permitted under the older 100-foot standard (a legal nonconforming use that may not need to comply with the newer setbacks unless expanded or rebuilt) or the newer rules, since that affects what you can do with the structure going forward; and (3) if the operation is or would be large enough to trigger CAFO/MAFO status, confirm with MDE whether a current discharge permit and nutrient management plan are in place and in good standing, since a lapsed or noncompliant permit on an existing operation could become your problem as the new owner.

If you're buying land specifically because you want to avoid poultry-operation proximity -- for a residence, agritourism venture, or another use sensitive to fan noise and odor -- the reverse check matters too: ask the county whether any poultry-house permits are pending or approved on adjacent or nearby parcels, since Wicomico's setback rules protect existing neighbors from new construction but don't prevent a new poultry operation from being sited near your own property in the future, subject to the same 200-foot and 500/600-foot standards running in the other direction.