Snake Found in the Pool, on the Deck, or in the Yard: How It Got There

Finding a snake in the pool, on the deck, or moving through the yard is a common late-spring through fall experience in Western North Carolina. The mountains are home to over 30 snake species, and residential properties in wooded areas are within the natural range of virtually all of them. Understanding why snakes appear in outdoor living spaces and what attracts them, takes a lot of the alarm out of the encounter.

Why Snakes Enter Pools

Snakes are competent swimmers and use water for thermoregulation and hunting. A snake in the pool almost always entered accidentally while traveling near the pool's edge. Copperheads and rat snakes are frequent accidental pool visitors in WNC mountain communities. A snake in the pool that cannot find its way out will exhaust itself, placing a pool noodle or rope at the edge gives it something to use as an exit.

If snakes appear repeatedly in a pool, check the surrounding landscape: heavy leaf litter, overgrown beds, and wood piles directly adjacent to the pool are likely harborage sites.

Why Snakes Are on the Deck

Decks in mountain communities are elevated off the ground and often provide shade, rodent activity below the decking, and gap access into the underside. Rat snakes and copperheads patrol decks following the mice and other small mammals that shelter underneath. A snake on the upper deck surface is usually passing through while hunting or thermoregulating, not establishing a den.

Why Snakes Cross the Yard

Snakes use yards as travel corridors between habitat areas, woodlands, creek edges, and rock outcroppings. A snake crossing an open lawn is in transit and not establishing territory. Attempting to kill or remove a snake moving across the yard is usually unnecessary and sometimes illegal for protected species.

Reducing Encounters Without Repellents

• Keep grass short around the pool, patio, and deck edges.
• Remove wood piles, rock piles, and deep mulch beds adjacent to high-use areas.
• Address rodent activity near the structure.
• Install pool fencing with a solid base that extends to the grade.
• Consider pool cover deployment when the pool is not in use for extended periods.

If you encounter a snake you cannot identify as non-venomous, do not attempt to handle it or kill it. Photograph it from a safe distance if possible, and call for assistance if it is in a location where people or pets are at risk.