Doofania after its completion, floating in the Danville Harbor.
|Land||United States of America|
|Locatie||International waters off the coast of Danville.|
|Populatie||2, and a robot.|
|Leader||Dr. Heinz Doofenshmirtz|
|Bekende burgers||Dr. Heinz Doofenshmirtz, Vanessa Doofenshmirtz, Norm|
|Eerste verschijning||Hail Doofania!|
Doofania is the country (more likely a city) which Dr. Heinz Doofenshmirtz created with help from his assistant, Norm, so he didn't have to live in a place that his brother Roger and his ex-wife wouldn't disturb him. It was destroyed when Phineas and Ferb fired their "Rainbow-inator". A boat full of fishermen in the harbor saw the rainbow, and one of them was so distracted he cast his line onto the inner tube that Doofania was floating on, sinking it to the bottom of the harbor. Minutes later, Doofenshmirtz and Norm resurfaced, soaking wet. ("Hail Doofania!")