21 Seasons have aired on CBS.
The 22nd is currently underway.
Survivor aired two seasons. For Survivor: Caramoan, it aired over the course of 13 weeks. For Survivor: Blood vs. Water, it aired over 13.5 weeks.
Survivor airs two seasons of Survivor each year. While the episodes range from 13-16 episodes per season, majority of the seasons consist of 14 episodes. Depending on what particular year you are looking at your episode count would vary. Here is a list of the seasons and how many episodes they had so that you can calculate how many episodes per year more efficiently. Survivor: Borneo (13 Episodes) Aired: May 31, 2000-August 23, 2000 Survivor: Australian Outback (15 Episodes) Aired: January 28-May 3, 2001 Survivor: Africa (14 Episodes) Aired: October 11 2001-January 10, 2002 Survivor: Marquesas (13 Episodes) Aired: February 28-May 19, 2002 Survivor: Thailand (14 Episodes) Aired: September 19-December 19, 2002 Survivor: Amazon (14 Episodes) Aired: February 13-May 11, 2003 Survivor: Pearl Islands (14 Episodes) Aired: September 18-December 14, 2003 Survivor: All-Stars (16 Episodes) Aired: February 1-May 9, 2004 Survivor: Vanuatu (14 Episodes) Aired: September 16-December 12, 2004 Survivor: Palau (14 Episodes) Aired: February 17-May 15, 2005 Survivor: Guatemala (14 Episodes) Aired: September 15-December 11, 2005 Survivor: Panama (15 Episodes) Aired: February 2-May14, 2006 Survivor: Cook Islands (15 Episodes) Aired: September 14-December 17, 2006 Survivor: Fiji (14 Episodes) Aired: February 8-May 13, 2007 Survivor :China (14 Episodes) Aired: September 20-December 16, 2007 Survivor: Fans vs. Favorites (14 Episodes) Aired: February 7-May 11, 2008 Survivor: Gabon (14 Episodes) Aired: September 25-December 14, 2008 Survivor: Tocantins (14 Episodes) Aired: February 12-May 17, 2009 Survivor: Samoa (15 Episodes) Aired: September 17-December 20, 2009 Survivor: Heroes vs. Villains (14 Episodes) Aired: February 11-May 16, 2010 Survivor: Nicaragua (15 Episodes) Aired: September 15, 2010 - December 19, 2010 Survivor: Redemption Island (15 Episodes) Aired: February 16, 2011 - May 15, 2011
The popular CBS reality show, Survivor, is currently in its 26th season. It first aired in 2000, and is currently still going strong and has been renewed for its 27th season.
As of June 2015, 25 seasons have aired.
Survivor: South Pacific will begin in September 2011 with an entire season for you to watch.
Parvati Shallow has been on three seasons of Survivor. Survivor: Cook Islands Survivor: Micronesia (Where she claimed the title of Sole Survivor) Survivor: Heroes vs. Villains
Survivor (U.S. TV series) has 22 seasons .
To answer your question a total of 4 seasons have aired and season 5 started last weekend.
180 episodes aired over 9 seasons.
Five
As of March 2014, Survivor is currently airing the 28th season. Survivor: Cagayan. They have already been renewed for additional seasons.
As of May 2012, Wii currently has one Survivor game.