* As a geographical term: Generally, you don't capitalize "north central region" when it's used as a general geographic description. For example: "The north central region of the country experiences harsh winters."
* As a proper noun: You would capitalize it if it's the formal name of a specific region, like a designated administrative region or a well-established regional organization. For example: "The North Central Region of the United States is known for its agriculture."
Example:
* Not capitalized: "The company has a strong presence in the north central region of the country."
* Capitalized: "The North Central Region of the National Park Service oversees a vast area of protected land."
In doubt, it's safer to not capitalize unless you are certain it's a proper noun.