How many feral pigs are there in Australia?
Estimates of feral pigs numbers vary anywhere between 3.5 and 23.5 million. It is very difficult to accurately estimate a total number as their distribution and abundance can vary greatly due to changing environmental conditions from year to year. Numbers drop dramatically during drought but can increase greatly in a run of good seasons. Feral pig densities in different habitats vary from about one pig per square kilometre in drier woodland and grazing land up to 40 per square kilometre in wetlands and floodplains that are seasonally flooded.
