Montgomery County Fire Captain Zachary Adams said the baby boy was healthy and was taken to a local hospital.
It's the 36th baby box in Kentucky.
Since 2017 there have been 39 infants placed in a Baby Box.
The 28th Safe Haven Baby Box in Kentucky was installed Monday at the Jeffersontown Fire and EMS station.
Monica Kelsey, founder of Safe Haven Baby Boxes, said there are 19 actives baby boxes across Kentucky. More are in production, which could increase Kentucky's total to 34 operational baby boxes by the end of the year.
A Safe Haven Baby Box was installed Monday in Shelby County.
If you need help finding a baby box location, or want to speak to a counselor, call the National Safe Haven crisis hotline at 1-866-99-BABY1.
The boy, believed to be 5 years old, was found in Washington County back in April. The community named the boy Angel, but it's still unknown who he is.
Safe Haven Baby Boxes allow parents to surrender their infants safely and anonymously.
The box allows a mother to surrender her newborn infant 30 days old or less with 100% anonymity.