According to Texas Parks and Wildlife Department data, the United States wild pig population reached an estimated 6.9 million animals across 35 states by 2016, a sharp rise from 2.4 million across 18 states in 1982. This rapid expansion has turned state parks and popular backcountry trails into zones of heavy ecological and structural damage, forcing land managers to deploy everything from traps to helicopter-based removal to curb the destruction.
Texas Parks Grapple with Growing Populations
Texas carries the country’s worst feral hog problem by far, with populations confirmed in more than 230 of the state’s 254 counties, according to state wildlife officials who put the 2016 state total at roughly 2.6 million. At Lake Brownwood State Park, a 537.5-acre site in Brown County, Park Superintendent John Holland stated after 12 years on the job that hogs have grown bolder and turn up regularly along hiking trails. “They’re rooting up areas along the trails where they can actually cause accidents,” Holland said during a spring break rush, warning visitors to keep their distance.
A similar dynamic plays out down on the coast at Galveston Island State Park, where roughly 2,000 acres of barrier island protect dunes, coastal prairie, and salt marsh. Park officials classify the animals as their newest wildlife visitors, arriving to forage for surface worms and insects while leaving behind torn-up topsoil and tracks. Rangers ask visitors to keep their distance and report sightings rather than approach while the natural resource team plans a long-term response.
Pro Tip: When exploring parks in heavy hog country, look down as much as up. Sounders of wild hogs overturn earth overnight, creating uneven terrain and hidden tripping hazards along otherwise groomed hiking paths.
Missouri Glades and Threatened Wildflowers
The damage extends far beyond the southern plains into the Midwest, where Missouri state parks balance recreation with aggressive population control. At Johnson’s Shut-Ins State Park, a 9,432-acre site built around granite chutes on the East Fork of the Black River, then-superintendent Jerry Toops found a glade torn up along the Ozark Trail on Goggins Mountain in 2002 and trapped roughly 200 hogs on nearby land over subsequent years. Next door at Taum Sauk Mountain State Park, rooting hogs target restored glades and wetlands.
The stakes in Missouri involve rare native flora. A 2019 survey revealed that 20 to 25 percent of known sites for Mead’s milkweed, a federally threatened wildflower on Taum Sauk’s glades, sustained hog damage within the previous year, with one site completely wiped out. Statewide elimination partnerships utilizing trapping and helicopter-based removal have reduced Missouri’s feral hog numbers by 84 percent since 2016, though both parks temporarily closed for aerial operations as recently as December 2025.
California Backcountry and Water Supplies
California land managers deal with a legacy stretching back a century. European boars brought to the Monterey area for hunting in the 1920s and 1930s eventually populated Mount Diablo State Park, where a nearly 20,000-acre landscape features a 3,849-foot summit. Because a single sow can produce two to three litters of up to a dozen piglets annually, California State Parks, the East Bay Regional Park District, and the East Bay Municipal Utility District trap hundreds of pigs a year. The utility district spends roughly $50,000 annually on trapping to keep the animals out of local water supplies, an issue that intensifies after wet winters swell the population.
Coe State Park spans 87,000 acres of oak woodlands and swimming holes as Northern California’s largest state park. Wild pigs have rutted up trails like the Live Oak Trail and wallowed in park roads for decades. A park ranger stated bluntly in a 2004 interview, “I don’t think we’ll ever be able to eradicate the pigs from the park,” pointing to high birth rates where females start breeding at nine months old.
Did You Know? Female feral pigs can begin breeding at just nine months of age and produce up to three litters a year, with litter sizes ranging from five to ten piglets—a reproductive rate that routinely outruns traditional trapping efforts.
Louisiana Lakeside Parks and Habitat Destruction
Along the Gulf Coast of Louisiana, Fontainebleau State Park covers 2,800 acres on the north shore of Lake Pontchartrain near Mandeville. Rangers noted in a 2017 report that feral hogs plowed up open fields near the beach so severely that the ground turned uneven and unsightly, with one ranger comparing the landscape to “mowing grass in hell.” Officials captured and relocated more than 150 hogs from the park in a single year.
With some males topping 200 pounds, these animals frequently wander near campsites during mealtimes. Rangers remind visitors that the hogs are wild animals and should never be fed or approached, especially given that Louisiana wildlife officials peg statewide feral hog damage at tens of millions of dollars annually.
Frequently Asked Questions
Why are feral hogs so destructive to state parks?
Feral hogs use their snouts to root deep into the soil for worms, insects, and plant roots. This behavior turns groomed trails, campgrounds, and fragile glades into fields of overturned earth, which damages native plant habitats like Mead’s milkweed and creates dangerous tripping hazards for hikers.
How do state parks manage wild pig populations?
Land managers rely primarily on trapping programs, relocation efforts, and, in certain states like Missouri, specialized aerial removal via helicopters to reduce dense populations.
Are wild hogs dangerous to park visitors?
Yes. Although typically wary, feral hogs can grow bold, especially when habituated to food near campsites. State wildlife officials advise visitors to keep a safe distance, never feed them, and treat any sighting with the same caution as an encounter with any other wild animal.
Plan Your Next Outdoor Excursion Wisely
Stay informed about trail conditions and wildlife advisories before heading out to state parks. Explore our other regional outdoor guides or leave a comment below with your own park experiences.
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