There are countless Jedi. But some most famous ones are Anakin Skywalker, Obi-Wan Kenobi, Yoda, Ahsoka Tano, Mace Windu, Luke Skywalker, Plo Koon, Galen Marek a.k.a "Starkiller," Kit Fisto, Ki-Adi-Mundi, Aayla Secura, Shaak Ti and Even Piell
It depended on the time. Sometimes there were only 1 and others there were nearly a million.
The Jedi Council typically consists of 12 members, including the Grand Master and other Jedi Masters with various positions and responsibilities within the Jedi Order.
There were many Jedi in Star Wars.
Secrets of the Jedi has 203 pages.
Children of the Jedi has 345 pages.
Jedi Trial has 352 pages.
The Lost Jedi has 528 pages.
Jedi Twilight has 368 pages.
Legacy of the Jedi has 176 pages.
Jedi Search has 384 pages.
The Trail of the Jedi has 128 pages.
I imagine that there were probably 3 hundred Jedi because 200 Jedi died on Geonosis
Hundreds of Jedi were at that arena. There are way too many too list. There was even a battle in Geonosis's orbit and many Jedi died in that battle too. A total of 200 Jedi died in these 2 events.