The local spay and neuter clinic in Tacoma WA (200,000 residents) charges $55 for spays and $30 for neuters. Low income voucher is $15 for either sex. They charge $10 for any TNR, which includes ear tipping, rabies and FVRCP. Cats must arrive in a live trap for the TNR to be considered. I’ve done 1 TNR spay here, 2 spays, and 3 neuters. The local mobile spay station charges $0 for spays and neuters for people who can prove low income (ie SNAP/food card/SSI paperwork). If you don’t qualify for low-income costs it is $55 for spay and $35 for neuter. Surgery fee is waived for TNR trapped cats. I’ve done 3 spays and 4 neuters here. They have 3 vans in different counties and stop in multiple cities. They serve 3 counties, Pierce, King, and Snohomish (about 3.6 million people total). The mobile station offers other services if desired; $10 for FVRCP, $10 for rabies, and $10 for microchip. $10 for oral pain meds. $15 for SNAP test. Flea treatment is also $0 on occasions, or $5 when there is no funding for it. Both are low-cost options, as local walk-in and appointment clinics quote $100-200 for desexing.