10+ years
Kent
Meet Kent, a 10-year-old terrier mix weighing 24 pounds, but don't tell him he's a senior. This playful guy still has plenty of pep in his step and ap…
Wish Bone Canine Rescue • Normal, IL
Senior Terrier dogs in Illinois
Senior Terrier dogs for adoption in Illinois
Meet 9 adoptable senior Terrier dogs (age 7+) in Illinois. Each one is from a shelter or rescue and ready for a calm, loving home.
Older Terriers in Illinois are often passed over for puppies, yet they're usually house-trained, settled in temperament, and ready to bond right away — and because they're fully grown, you already know their size and personality. Adopting a senior Terrier in Illinois means welcoming a calm, grateful companion who can settle in from day one. Adopters browsing senior Terriers in Illinois are often also looking at Pit Bull Terrier and Chihuahua listed here. Senior Terriers are also listed in 31 other states if you can travel for the right match.
Last updated November 7, 2026 at 7:45 AM EST. Listings refresh throughout the day. Always confirm a dog’s availability with the shelter or rescue before making plans.
Available senior Terrier dogs in Illinois
9 senior Terrier dogs available in Illinois.
10+ years
10+ years
Senior confirmed
10+ years
10+ years
Scooter
MEET SCOOTER! At 10 years young, this sweet Chihuahua/Terrier mix is pint-sized, adorable, and looking for a soft place to land. Scooter has spent a d…
Project Hope Animal • Gilberts, IL
10+ years
Barney
Pike County Animal Shelter - ILLINOIS • Pittsfield, IL
Senior confirmed
Petal
Located at Animal Welfare League of Illinois - Chicago Ridge
Animal Welfare League of Illinois - Chicago Ridge • Chicago Ridge, IL
10+ years
Tinker
Meet Tinker – A Sweet Senior Looking for Her Soft Place to Land Breed: Chihuahua mix Sex: Female Age: About 14 years old Activity level: Low Tinker is…
Starfish Animal Rescue • Plainfield, IL
Senior Terrier dogs in other states
Other senior dogs in Illinois by breed
Senior dogs in Illinois by city
Adopting a senior Terrier in Illinois — FAQ
What counts as a senior dog?
Most shelters and vets consider a dog "senior" around age 7, though large breeds often age sooner and small breeds a little later. Every dog listed here is 7 years or older.
How do I adopt a senior Terrier in Illinois?
Open any dog's profile to see the shelter or rescue caring for them in Illinois, then use the adoption link or contact details to apply directly with that organization. Lily's Second Chance simply gathers senior Terriers in one place so they're easier to find.
Are there always senior Terrier dogs available in Illinois?
Availability changes often as dogs are adopted and new ones are listed. If you don't see a senior Terrier in Illinois right now, check back soon or browse nearby states — new dogs are added regularly.
Can I adopt a senior Terrier from Illinois if I live elsewhere?
Often, yes. Many rescues and shelters in Illinois arrange or help coordinate transport for the right adopter, while others prefer a local meet-and-greet first. Open a dog's profile and ask the organization directly how their out-of-area adoption process works.
Guides to help you decide
Getting started
Why Adopt a Senior Dog? 7 Reasons Older Dogs Make Wonderful Companions
Senior dogs are often calm, house-trained, and overlooked at shelters. Here are seven honest reasons an older dog may be the best companion you ever bring home.
6 min readUnderstanding ageHow Old Is a "Senior" Dog? Senior Age by Breed and Size
A dog is not "old" at the same age across the board — size and breed change everything. Here is how to tell when a dog becomes a senior, and what it means for care.
5 min readCare & healthCaring for a Senior Dog: Health, Diet, and Everyday Comfort
How to keep an older dog healthy and comfortable — vet care, senior-appropriate diet, joint and dental health, exercise, and simple home adjustments that make a big difference.
8 min readKnow a senior Terrier in Illinois who needs a home?
Shelters and rescues can list adoptable senior dogs for free.