You find a police station and a post office in a town. They begin with the letter P.
Puxatawnee, the town where the groundhog sees his shadow
Portsmouth, Preston, Prescot, Portmaddoc and many, many more.
You find him in a cave, near the town that starts wit a p and its at the bottom,
One fabric beginning with P is poplin.
If you mean at the beginning, his house is north of Cherrygrove Town.
Sandgem Town.
A slippery metallic beginning with P could be pewter or platinum.
The name of a large flat fish beginning with "P" is a "Plaice."
A disaster beginning with 'N' could be a natural disaster like a tsunami. A disaster beginning with 'P' could be a pandemic or a hurricane, for example.
Rochester!
Lazy Town
PLATINUM