How many levels for administration divide?

Question

Excuse my ignorance, I just want to know how many levels for boundaries divide in a global level?

What's Admin 4 btw?

Answer 1

This is what you need: http://en.wikipedia.org/wiki/Table_of_administrative_divisions_by_country

Admin 4 is a Administrative 4 Level Boundary. United States is structured as follows: Admin 0 - Nation, Admin 1 States along with Federal District (DC), Admin 2 - Counties & Independent Cities, etc

Sometimes these are straight forward, but sometimes people, governments, and different organizations may disagree on the amount, the names, etc.

Answer 2

I don't think that there is a single rule for administrative units globally, because of the history of the country and the differences in terms of population density, size and governance. In Europe, the standard divisions are the NUTS and there are three levels. But as you can see on Wikipedia , not all countries have the three levels. Furthermore, the smallest country levels are sometimes smaller than NUTS 3.

Answer 3

You will need to go to Gu (District) or Submunicipal level divisions Eup (Town) for South Korea.

http://en.wikipedia.org/wiki/Administrative_divisions_of_South_Korea