How Many Orcs Attacked Minas Tirith?

This army consisted of some 150,000 orcs, trolls, and Men who had allied with Sauron.

How many Rohirrim died at Minas Tirith?

There is no clearly stated final death toll for the Battle of Pelennor Fields. There is a definite figure for the army of the Rohirrim that came to Gondor's defence; it consisted of 6,000 riders, and a full 2,000 were killed in the battle, including Théoden.

How many orcs are in Mordor?

ly be that this refers to Mordor generally and that the setting forth of the hosts of Dol Guldur (some 100,000) is what is referred to as the greater host. So the Morgul host was probably 50,000 Orcs and 25,000 allied Men, which then combined with a similar number in East Osgiliath.