The Companion Animal Parasite Council provides great data each year on how heartworm impacts dogs in each region of the United States. Highest risk areas are featured in a deep orange color, where areas with less risk have a lighter orange color. It’s important to note this map clearly shows that heartworm disease is found in all 50 states, making protection important year-round. Dog owners in the southeast have more to worry about when it comes to heartworm disease due to the more mild conditions that mosquitoes desire.
If you click on this map you’ll be taken to the CAPC website where you can click on your home state and view even more data about heartworm prevalence by county. Not all counties have data associated with it, and an important note is that the numbers shown in the map (total positive cases and total pets tested) are estimated to be only 30% of the true heartworm numbers in each state. This is because the numbers only account for the tests and results that are sent into IDEXX Laboratories and ANTECH Diagnostics, not those tests that are run in an individual hospital where they analyze results in house. There is potential that the numbers shown on the site can actually be up to 3X what is shown.
This map was provided by the Companion Animal Parasite Council with data from IDEXX Laboratories and ANTECH Diagnostics.
Understanding what heartworm disease looks like in your region is an important step in understanding why protecting your pet should happen year-round. If you have questions, feel free to visit our staff at a Community Clinic near you or contact us here.