You can print information in the console about the nodes, faces, and cells in each zone using the Grid/Info/Zones menu item.
Grid Info Zones
The grid zone information includes the total number of nodes and, for each face and cell zone, the number of faces or cells, the cell (and, in 3D, face) type (triangular, quadrilateral, etc.), the boundary condition type, and the zone ID. Sample output is shown below:
Zone sizes on domain 1: 21280 hexahedral cells, zone 4. 532 quadrilateral velocity-inlet faces, zone 1. 532 quadrilateral pressure-outlet faces, zone 2. 1040 quadrilateral symmetry faces, zone 3. 1040 quadrilateral symmetry faces, zone 7. 61708 quadrilateral interior faces, zone 5. 1120 quadrilateral wall faces, zone 6. 23493 nodes.