Illinois

Cats for Adoption in Waterloo, IL: 20 Cats Looking for a Home

Cats up for adoption near Waterloo, IL

259 cats and kittens are waiting for homes at 15 rescues and shelters within 50 miles of Waterloo. Here are the 20 nearest, each with photos, their story and how to reach the rescue looking after them.

Of the cats up for adoption within 50 miles of Waterloo, 89 kittens, 75 young cats, 80 adults and 14 seniors. Most are domestic shorthairs and other mixed breeds, but you'll also find Siamese cats.

1. Brioche

Kitten (5 months 7 days) · Male · Domestic Short Hair / Mixed (short coat) · 15 mi from Waterloo

For more information please visit our website www.campchaospuppyrescue.org or email us at campchaospuppyrescue@outlook.com

Please Like our Facebook page: www.facebook.com/campchaospuppyrescue

Our kitten adoption fee is $175, which covers their spay/neuter, microchip, vet exam, fecal test, FeLV/FIV test, and current vaccinations (FVRCP and Rabies).

Our cat adoption application can be found at here.

  • House-trained
Adopt Brioche fromCamp Chaos Puppy RescueImperial, MO · listed Jul 8

2. North

Adult (1 year 3 months) · Female · Domestic Short Hair / Mixed · 15 mi from Waterloo

For more information please visit our website www.campchaospuppyrescue.org or email us at campchaospuppyrescue@outlook.com

Please Like our Facebook page: www.facebook.com/campchaospuppyrescue

Our adult cat adoption fee is $125, which covers their spay/neuter, microchip, vet exam, fecal test, FeLV/FIV test, and current vaccinations (FVRCP and Rabies).

Our cat adoption application can be found at here.

  • House-trained
Adopt North fromCamp Chaos Puppy RescueImperial, MO · listed Jun 11

3. Vermont

Adult (1 year 3 months) · Female · Domestic Short Hair / Mixed · 15 mi from Waterloo

For more information please visit our website www.campchaospuppyrescue.org or email us at campchaospuppyrescue@outlook.com

Please Like our Facebook page: www.facebook.com/campchaospuppyrescue

Our adult cat adoption fee is $125, which covers their spay/neuter, microchip, vet exam, fecal test, FeLV/FIV test, and current vaccinations (FVRCP and Rabies).

Our cat adoption application can be found at here.

  • House-trained
Adopt Vermont fromCamp Chaos Puppy RescueImperial, MO · listed Jun 11

4. King Arthur

Young (2 years) · Male · Tabby · 20 mi from Waterloo

King Arthur is a sweet boy, who is about 2 years old and looking for his family. He is very friendly to the other 2 cats in his foster home (one of them is his twin brother who he has been separated from for a year until he came to his foster home- long story on that) and he doesnt seem to mind the dog friends either, but is still a little shy. He absolutely loves human attention and loves to be petted. He is good with kids as well. He it litterbox trained and will be available for adoption on 10/8!

  • Good with kids
  • Good with cats
  • Good with dogs
Adopt King Arthur from4 Paws 4 RescueFenton, MO · listed Sep 30

5. Pip

Kitten · Female · Tortoiseshell / Mixed (short coat) · 20 mi from Waterloo

Pip and her sister were born on 3/21/26. She is a very sweet girl, after she gets comfortable in her surroundings.

  • Good with cats
  • Good with dogs
  • House-trained
Adopt Pip from4 Paws 4 RescueFenton, MO · listed Jul 31

6. Muffin

Kitten · Female · Dilute Calico / Mixed (short coat) · 20 mi from Waterloo

Muffin and her sisters were born on 3/21/26. Muffin is quite the ham!! Lol! She loves to be pet, and is a social girl!

  • Good with kids
  • Good with cats
  • Good with dogs
  • House-trained
Adopt Muffin from4 Paws 4 RescueFenton, MO · listed Jul 31

7. Oreo

Adult · Female · Domestic Short Hair / Mixed (short coat) · 20 mi from Waterloo

Oreo has been an amazing momma more times than she needed to be. Worry no more! No more babies for this amazing 10-11 year old girl(as of 7/26/26). Oreo is a sweet affectionate girl, and would do best in a quieter home. She was a young stray kitty that was hanging around a home that recently had a new buyer. They decided to feed her, and unfortunately with this litter she got a not so great infection, and actually brought her babies to the home of her feeders, because she knew she needed help. So these people got help, momma had surgery, and is doing great!! Now she’s ready for a quiet loving home

  • House-trained
Adopt Oreo from4 Paws 4 RescueFenton, MO · listed Jul 27

8. Chocolate Chip

Kitten · Male · Domestic Short Hair / Mixed (short coat) · 20 mi from Waterloo

Chocolate Chip and his siblings are about 13 weeks old as of 8/1/26. He is a sweet playful boy! He and his brother have become very bonded, so we’d like them to be adopted together. So you’ll get double the sweetness and cuddles!

  • Good with kids
  • Good with cats
  • Good with dogs
  • House-trained
Adopt Chocolate Chip from4 Paws 4 RescueFenton, MO · listed Jul 27

9. Snickerdoodle

Kitten · Male · Domestic Short Hair / Mixed (short coat) · 20 mi from Waterloo

Snickerdoodle is as sweet as they come! He is about 13 weeks old as of 8/1/26. He loves attention, and is always wanting to be with you. He has become VERY bonded with his brother Chocolate Chip, so we’d like them to be adopted together. These two are seriously two of the sweetest kittens you’ll ever meet!

  • Good with kids
  • Good with cats
  • Good with dogs
  • House-trained
Adopt Snickerdoodle from4 Paws 4 RescueFenton, MO · listed Jul 26

10. Susan

Young · Female · Domestic Short Hair / Mixed (short coat) · 20 mi from Waterloo

Susan, aka Susie Girl, aka Susie Q is such a sweet sweet girl! She absolutely LOVES to be pet. She takes just a tiny short time to warm up, as most adult kitties do. Once she does, she loves to soak up all the pets! As of 7/15 she is about 1 year old

  • Good with cats
  • House-trained
Adopt Susan from4 Paws 4 RescueFenton, MO · listed Jul 16

11. Lizzie

Kitten · Female · Domestic Short Hair / Mixed (short coat) · 20 mi from Waterloo

Lizzie and her siblings were born on 2/14/26. She is a very sweet, playful girl! She loves other kitties! She and her sister Lexy have become very bonded so we would like them to go together:)

  • Good with kids
  • Good with cats
  • Good with dogs
  • House-trained
Adopt Lizzie from4 Paws 4 RescueFenton, MO · listed Jun 20

12. Lexy

Kitten · Female · Domestic Short Hair / Mixed (short coat) · 20 mi from Waterloo

Lexy was born on 2/14/26. She is a sweet baby girl who loves other kitties! She would do best in a home without young kids. It would just make her come out of her shell quicker. She and her sister Lizzie have become very bonded, so we would like them to be adopted together.

  • Good with cats
  • Good with dogs
  • House-trained
Adopt Lexy from4 Paws 4 RescueFenton, MO · listed Jun 20

13. Bobby

Adult · Male · Domestic Short Hair / Mixed · 20 mi from Waterloo

Bobby is a confident, easygoing, and quietly affectionate tabby. He doesn’t need to zoom around the house to prove he's happy. He is much more likely to slow-blink at you from across the room or lean his head into your hand for affection.He likes to set the pace and will come out of his shell to show his silly side once comfortable in a new environment. If interested email strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description.

Read more about Bobby

If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Bobby fromStray Haven Rescue, Inc.St. Louis, MO · listed Oct 22

14. Jessi

Young · Female · Domestic Short Hair / Mixed · 20 mi from Waterloo

Jessi is an absolutely darling, cloud-soft beauty who is looking for her forever playmate. This girl loves to stay active and is a professional cardboard box inspector! From chasing feather wands and batty toys to zooming around the room, she brings pure joy and energy wherever she goes. Once she has burned off her energy, she will happily curl up near you to recharge for the next round of fun. If interested, email strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description.

Read more about Jessi

If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Jessi fromStray Haven Rescue, Inc.St. Louis, MO · listed Oct 22

15. Marvin

Adult · Male · Domestic Short Hair / Mixed · 20 mi from Waterloo

Meet Marvin! This handsome tabby boy has a 5-star rating in biscuit-making. The moment you offer a soft blanket or plush bed his paws get right to work. When he’s not running an imaginary bakery, he enjoys playtime, head scratches, chin rubs. Consider Marvin to be your loyal companion, he would love a home to call his own. If interested, email strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description.

Read more about Marvin

If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Marvin fromStray Haven Rescue, Inc.St. Louis, MO · listed Oct 22

16. Ruger

Adult · Male · Domestic Short Hair / Mixed · 20 mi from Waterloo

My name is Ruger and I operate under the firm belief that personal space is a myth. If you are sitting down, I am on your lap. If you are lying down, I am on your chest. Sometimes I get so comfortable snuggling I start to drool!Come visit me at Mauhaus - if I’m not occupying someone’s lap I am in the window watching the birds and soaking up the sun. If interested email, strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description.

Read more about Ruger

If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Ruger fromStray Haven Rescue, Inc.St. Louis, MO · listed Oct 22

17. Gray Bear

Adult · Male · Domestic Short Hair / Mixed · 20 mi from Waterloo

Hello, my name is Gray Bear. I was trapped in a yard in Fenton, MO during a TNR event. While I was being held waiting for for neuter surgery, it was deemed that I am very friendly. I was trnaferred to my foster dad, who agrees that I am very loving. It will take me a day (at most) to settle in to a new location. I am a bit chatty. As. May 25, 2026, I am approximately 3 years young. For more information email muttlysloat5@yahoo.com All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description.

Read more about Gray Bear

If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • Good with cats
  • House-trained
Adopt Gray Bear fromStray Haven Rescue, Inc.St. Louis, MO · listed Oct 13

18. Dani

Young · Female · Domestic Short Hair / Mixed · 20 mi from Waterloo

Dani is approximately 11 months old. She and her sister Frieda are both very sweet cats. They are a bonded pair and located at Mauhaus if you would like to visit. If interested, email strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description. If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Dani fromStray Haven Rescue, Inc.St. Louis, MO · listed Sep 20

19. Frieda

Young · Female · Domestic Short Hair / Mixed · 20 mi from Waterloo

Frieda is approximately 11 months old. She and her sister Dani are both very sweet cats. They are a bonded pair and located at Mauhaus if you would like to visit. If interested, email strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description. If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Frieda fromStray Haven Rescue, Inc.St. Louis, MO · listed Sep 20

20. Percival

Young · Male · Domestic Short Hair / Mixed · 20 mi from Waterloo

Percival is approximately a year and a half old. He's very sweet and gets along well with other cats. He is located at Mauhaus. If interested, email strayhavenfeline@gmail.com. All cats have been spayed or neutered, microchipped, FIV/FeLV tested, are current on shots, flea treated, and dewormed. An adoption fee applies. If you are interested in me, please send an email to the email address listed in the pet's description. If no email address is specified, please email info@strayhavenrescue.org. Please allow 3-5 business days for a response.Our adoption application can be found here: http://strayhavenrescue.org/adopt-a-cat/adoption-application/ Check out our website: http://www.strayhavenrescue.orgFind us on Facebook: https://www.facebook.com/StrayHavenSTL

  • House-trained
Adopt Percival fromStray Haven Rescue, Inc.St. Louis, MO · listed Sep 20

Rescues and shelters near Waterloo

The rescues with the most cats listed within 50 miles of Waterloo.

  • St Charles County Humane ServicesSt Peters, MO · 63 cats · 40 mi from Waterloo
  • Humane Society of MissouriSt Louis, MO · 38 cats · 21 mi from Waterloo
  • Animal Protective Association of MissouriSt. Louis, MO · 30 cats · 22 mi from Waterloo
  • Heartland Humane Society of MissouriO'Fallon, MO · 23 cats · 48 mi from Waterloo
    How to adopt from Heartland Humane Society of Missouri

    the first step in our process is an application. The questions on the application are designed to determine if the pet would be a good fit in this home. We contact the applicant’s veterinarian to verify they have a good history of previous (or current) pet care. We meet the applicant at Petsmart or at their home to allow them to interact with the pet they are interested in adopting. If all goes well the adoption is finalized. We have an adoption contract, requiring regular vet care, indoor homes, return to us if it doesn’t work out, etc. Our dog adoption fee is $175, cats range from $80 for older cats to $125 for kittens

  • Stray Haven Rescue, Inc.St. Louis, MO · 16 cats · 20 mi from Waterloo
    How to adopt from Stray Haven Rescue, Inc.

    There is an application and interview process. We have a foster to adopt program that is available for adult cats. We do accept our animals back if must be rehomed after the adoption is finalized.

  • St. Animal Pet AdoptionsSt. Ann, MO · 13 cats · 30 mi from Waterloo
    How to adopt from St. Animal Pet Adoptions

    The fees 200.00 for dogs and 150.00 for cats. The potential adopters will have to meet with the animal and a staff member and go through a home visit. To apply for an animal the potiential adopter will have to fill out an application found on our web page and have their references called.

  • Humane Society of Missouri - Maryland HeightsMaryland, MO · 13 cats · 31 mi from Waterloo
  • Randolph County Humane SocietySteeleville, IL · 13 cats · 35 mi from Waterloo
    How to adopt from Randolph County Humane Society

    Background Check, Vet Refer.& Adoption Contract, & Adoption Fees

  • 4 Paws 4 RescueFenton, MO · 12 cats · 20 mi from Waterloo
    How to adopt from 4 Paws 4 Rescue

    $250 to cover up to date vaccinations, 4DX, spay/neuter and microchip.

  • Smelly Cat RescueLake Saint Louis, MO · 12 cats · 46 mi from Waterloo
  • Camp Chaos Puppy RescueImperial, MO · 8 cats · 15 mi from Waterloo
    How to adopt from Camp Chaos Puppy Rescue

    Adoption events are held on Saturdays. We ask people to come and fall in love. At the event potential adopters fill out an application and our adoption contract. We review the application and pick the best home for the dog. Our adoption fee is $280 and is due at the time of completing the adoption. Some of our dogs do require home visits.

  • Country Acres RescueManchester, MO · 7 cats · 29 mi from Waterloo
    How to adopt from Country Acres Rescue

    Adoption Questionare, personal meeting/interview. Once approved we have a contract they sign and a packet of information they are given, along with food. Adoption fees-Dogs $200; Puppies $250; Cats $100; Kittens $150 Includes all the following applicable: Spay/Neuter Microchip 1st shots (FVRCP or DHLPP) Bordetella (for dogs) Heartworm Test (for dogs 6 months or older) Felv/Fiv Test (for cats) General worming Flea treatment/Prevention Heartworm protection Free bag of Science Diet food Free office visit(at the vet they have been seen by) 30 day free pet health insurance

  • St. Clair County Animal Adoption CenterBelleville, IL · 5 cats · 16 mi from Waterloo
  • All Paws Rescue, Inc.O Fallon, MO · 4 cats · 48 mi from Waterloo
    How to adopt from All Paws Rescue, Inc.

    All potential adopters must fill out an adoption application. If it appears to be a good fit, we will also require an adoption contract prior to adoption. We check vet references where possible. The adopter must agree to return the pet to us if at any point they cannot keep it in the future. Adoption fees are $125 for dogs and $90 for cats.

  • The Cat Network, Inc.St. Louis, MO · 2 cats · 27 mi from Waterloo
    How to adopt from The Cat Network, Inc.

    Potential adopters must fill out an application. Once the application is approved, the adoption fee is $150 for kittens 6 mos and under and $125 for over 6 mos. This includes all age appropriate shots, spay/neuter, microchip and combo/snap test.

Adopting a cat in Waterloo

Most rescues ask you to fill in an application, meet the cat, and pay an adoption fee that usually covers spaying or neutering, vaccinations and a microchip. Many are foster-based, so you'll often meet your cat in a volunteer's home rather than a shelter.

Senior cats are often the calmest companions and the slowest to find homes. If you'd like a settled, affectionate cat, ask the rescues about their older residents.

Kittens go quickly, especially in spring and summer. If you've fallen for one, contact the rescue soon, and think about adopting two: young cats keep each other company and out of mischief.

Questions about adopting a cat in Waterloo

How many cats are up for adoption in Waterloo?

As of October 29, 2026, 259 cats and kittens are listed for adoption within 50 miles of Waterloo, Illinois, by 15 rescues and shelters. The list is updated every day.

Where can I adopt a cat in Waterloo?

The rescues with the most cats near Waterloo right now are St Charles County Humane Services (St Peters, MO), Humane Society of Missouri (St Louis, MO) and Animal Protective Association of Missouri (St. Louis, MO). Each cat above has the rescue's phone number and website.

Are there kittens for adoption in Waterloo?

Yes. 89 kittens are up for adoption within 50 miles of Waterloo.

How do I adopt a cat in Waterloo?

Pick a cat and contact the rescue or shelter looking after them. Most ask you to fill in an application, meet the cat, and pay an adoption fee that usually covers spaying or neutering, vaccinations and a microchip.

Listings are updated daily. Rescues are responsible for their own listings; a cat may have been adopted since this page was updated.