What is an informal region in geography?

Answer 1

A formal region is a place with a government or administrative group for the purpose of defining boundaries like the United States and then informal regions do not form the basis of the modern administrative divisions of these countries, but still define and delimit local regional identity and sense of belonging

Answer 2

An informal region in geography is a area characterized by a common characteristic or feature that is not clearly defined by official boundaries. These regions are often defined by cultural, economic, or environmental factors, and boundaries can be subjective and fluid. Informal regions help geographers understand patterns and relationships within a larger geographic context.