What is the average price to have a cat neutered?

Zero dollars. If you go to the humane society near you, they do it for free.

I think I paid around 25 bucks at the vets office.

It really depends on where you live.

About $85 most location in Nor Cal and about $65 at the county animal shelter if they do not have their shots otherwise $45.

Here is a list of low-cost or free spay and neuter clincs listed by state.

If you really need to spend as little as possible, some vets charge a sliding-scale fee for spay/neuter. Also, in some areas there are local nonprofits that can help with the costs. Your local shelter or vet might be able to help you find one of those.

I’d like to add that it’s worth it to spay/neuter, even if it’s not cheap.