10+ years
Charlie
Charlie is a 15-year-old Chihuahua mix who weighs about 15 pounds and proves that age is just a number. This friendly, happy little guy is full of per…
Wish Bone Canine Rescue • Normal, IL
Senior Chihuahua dogs in Illinois
Senior Chihuahua dogs for adoption in Illinois
Meet 15 adoptable senior Chihuahua dogs (age 7+) in Illinois. Each one is from a shelter or rescue and ready for a calm, loving home.
Older Chihuahuas 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 Chihuahua in Illinois means welcoming a calm, grateful companion who can settle in from day one.
Last updated October 18, 2026 at 8:44 AM EDT. Listings refresh throughout the day. Always confirm a dog’s availability with the shelter or rescue before making plans.
Available senior Chihuahua dogs in Illinois
15 senior Chihuahua dogs available in Illinois.
Senior confirmed
Fitz
Meet Fitz, a 7-year-old Chihuahua mix weighing 12 pounds, and prepare to fall head over heels for this one-of-a-kind little gentleman. Missing one eye…
Wish Bone Canine Rescue • Normal, IL
10+ years
Russ
If you’re looking for a laid-back, low-maintenance companion, Russ is your guy. This sweet senior knows exactly what he likes in life: a soft blanket,…
REACH Rescue, Inc • Mundelein, IL
10+ years
Senior confirmed
Senior confirmed
Senior confirmed
Senior confirmed
Senior confirmed
Senior confirmed
Smooches
Located at Animal Welfare League of Illinois - Chicago Ridge
Animal Welfare League of Illinois - Chicago Ridge • Chicago Ridge, IL
10+ years
10+ years
Senior confirmed
Russell
Second City Canine Rescue • Palatine, IL
10+ years
Senior confirmed
Mia
Located at Animal Welfare League of Illinois - Chicago Ridge
Animal Welfare League of Illinois - Chicago Ridge • Chicago Ridge, IL
Senior Chihuahua dogs in other states
Other senior dogs in Illinois by breed
Adopting a senior Chihuahua 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 Chihuahua 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 Chihuahuas in one place so they're easier to find.
Are there always senior Chihuahua dogs available in Illinois?
Availability changes often as dogs are adopted and new ones are listed. If you don't see a senior Chihuahua in Illinois right now, check back soon or browse nearby states — new dogs are added regularly.
Can I adopt a senior Chihuahua 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 Chihuahua in Illinois who needs a home?
Shelters and rescues can list adoptable senior dogs for free.