The number of raions per region (oblast and autonomous republic) varies between 11 and over 20.

The average area of a Ukrainian raion before the reform was 1,200 km2 (463 sq mi).

Each raion consisted of urban (towns) or rural (villages), smaller municipalities that were administrated by their local councils (selsoviet, silrada) and subordinated to raion's or city's administrations.

Note: region is a general term referring to oblasts, the republic[3] and cities with special status.

Asterisk (*) identifies raions with administrative centers located outside of them (usually separately incorporated).