Florida Iguana Population and Spread
Green iguanas have expanded across South Florida as an invasive species, with growing populations in Miami-Dade, Broward, and Palm Beach counties. Their range has moved northward due to warmer winters and urban landscapes that provide food and shelter. The Florida Fish and Wildlife Conservation Commission lists them as a nonnative species with no natural predators in the state. Property owners report increasing sightings in yards, canals, and rooftops, especially during the breeding season. The U.S. Geological Survey tracks their spread through public observation data and mapping tools.
Frost events temporarily reduce local numbers, but populations rebound quickly in warmer microclimates. Their burrowing damages seawalls, sidewalks, and canal banks, creating maintenance costs for governments and homeowners. The Florida Iguana Removal industry has grown to address demand from residential and commercial clients. Companies advertise humane trapping, relocation, and exclusion services across the state. The National Invasive Species Council highlights iguanas as a priority species for management in the Southeast.
Economic and Property Impact
Iguana burrowing undermines infrastructure, including levees, pool decks, and landscaping walls. The Florida Department of Transportation monitors damage along state roads and rights-of-way. Repair costs for seawalls and retaining structures have increased in areas with high iguana density. Insurance claims related to structural damage from burrowing animals are rising in parts of Miami-Dade County. The pest control sector reports iguana removal as a growing segment of its revenue.
Damage to Residential and Commercial Properties
Homeowners face costs for repairing lawns, gardens, and pool equipment damaged by iguanas. Their feces can stain surfaces and create sanitation concerns near pools and docks. Commercial property managers in coastal areas invest in exclusion fencing and habitat modification. Real estate listings in high-density iguana zones sometimes note wildlife activity as a factor for buyers. The Florida Building Code does not yet include specific iguana-resistant design standards, but engineers recommend reinforced seawall caps.
Regulations and Control Methods
In Florida, green iguanas are not protected by state wildlife laws except against cruelty, and landowners may remove them from their property. The FWC allows trapping and humane euthanasia on private land without a permit. The U.S. Department of Agriculture does not list iguanas as a federally regulated species. Local municipalities may set their own rules regarding relocation and discharge of captured animals. The Humane Society of the United States provides guidance on nonlethal deterrence and exclusion techniques.
Effective Deterrence and Exclusion
Fencing with solid barriers and overhangs can reduce iguana access to yards and docks. Removing attractants such as fruit trees and ornamental plants limits habitat appeal. Some property managers use netting over ponds and gardens to protect vegetation. Professional removal services use traps and hand capture, followed by relocation or euthanasia per local regulations. The University of Florida IFAS Extension publishes best management practices for coexisting with invasive reptiles.