If you qualify for low income you can go next door at the animal shelter and they will give you a voucher for 20 or 25 dollars to spay or neuter( must show proof of low income) They also must have rabies shot. If not they offer the same day of procedure a rabies shot for $10.. They are really professional and super nice. I recommend them very highly.
I believe the Snip bus is cheapest you have to ask when it comes.
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