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Do pets in Colorado need flea prevention if they're mostly indoors?

Updated On September 23rd, 2025

Pet's info: Dog | Boxer | Female | unspayed | 11 months and 22 days old | 78 lbs

Hello! I was just curious as to if Colorado has a very low percentage rate of a pet getting fleas. (Excluding the pet owners who are more active. Out in the mountains, woods, etc;)? Or is it just the same pretty much everywhere you go and purely depends on how often your pet is outside and it’s interaction with other animals?

1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on April 6th, 2020

If you live along the Front Range then fleas are a problem from spring until the first freeze or so. If you live higher up in the mountains or the Western Slope the fleas are not as prevalent. Fleas can and will get in your house so it doesn't really matter if the dog spend a lot of time outside or not. Fleas are opportunists. I used to live in Colorado and used a monthly flea/tick prevention all year round but I took my dogs everywhere with me. If I had a dog that spent most of their time indoors, not hiking, not around many other dogs, then I would probably do the flea/tick prevention at least from April through October.

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