Four things line up
Palm Beach County is a textbook case for why iguanas thrive. Four things line up here: a climate that almost never gets cold enough for long, an enormous amount of waterfront — the Intracoastal and Lake Worth Lagoon, the C-51 and other drainage canals, and thousands of community retention lakes — to den along, block after block of ornamental landscaping to eat, and essentially no natural predators.
Add a species that lays dozens of eggs a year, and populations build fast and stay high.
The ingredients
Each factor on its own would matter; together they make the county close to ideal iguana country.
- Warm climate that rarely gets cold enough, long enough, to control them
- Endless soft bank — lagoon, canals, and retention lakes
- Lush ornamental landscaping as a year-round food supply
- No natural predators to check the numbers
- Clutches of 20–70 eggs let populations rebound fast
Why development makes it worse
The county's own development pattern makes it worse. Nearly every subdivision and golf community was built with retention lakes and canal drainage, which is exactly the soft-bank, close-to-water habitat iguanas want, and the manicured landscaping is a year-round buffet. That's why iguana pressure here is a standing condition on waterfront and community properties rather than a rare event. Managing it is about staying ahead of the breeding cycle, not reacting after a colony has already formed.
Common questions
Are iguana numbers getting worse in the county?
On unmanaged waterfront and community properties, yes. Fast breeding and no predators push numbers up until something interrupts the cycle, and cold snaps only set them back temporarily.
Which properties get hit hardest?
Anything on the water — Intracoastal seawalls, finger canals, and HOA and golf-course retention lakes — because the banks give them everything they need to den and breed.
Are iguanas native to Florida?
No. Green iguanas are an invasive species here, which is part of why they have no natural predators to keep the population in check.
