Sounders stars Clint Dempsey, Brad Evans, and Seattle native DeAndre Yedlin join the likes of defenders John Brooks and Timmy Chandler on the team.
Midfielder Julian Green, who made his national team debut last month, and forwards Terrence Boyd and Chris Wondolowski also are among the players who will try to earn spots during the Americans' pre-World Cup training camp, which opens Wednesday at Stanford, California.
Klinsmann must submit a 23-man roster to FIFA by June 2.
Among those left off Monday were defenders Michael Orozco and Tim Ream; midfielders Sacha Kljestan, Brek Shea, Jose Torres and Daniel Williams; and forwards Herculez Gomez, Eddie Johnson and Juan Agudelo.
Johnson, who spent the last two seasons in Seattle, scored the key first goal against Mexico last September that clinched the Americans' seventh straight World Cup berth.
"It was a very difficult decision based on what he's done with me the whole time," Klinsmann said.
Klinsmann said he viewed Landon Donovan, a veteran of three World Cups, as a pure forward in this roster. Johnson, a member of the 2006 World Cup roster, was a victim of numbers as Klinsmann took only six forwards.
Ten players were on the 2010 roster, including left back DaMarcus Beasley, like Donovan a veteran of three World Cups.
Five players did not appear in any of the 16 qualifiers for the 2014 World Cup: No. 3 goalkeeper Nick Rimado along with Brooks, Green, Wondolowski and Yedlin.
Half the players are from Major League Soccer, with four each from England's Premier League and Germany's Bundesliga. Two are from Mexico's league, and one each from Austria, France, Netherlands, Norway and Turkey.
The Americans play exhibitions against Azerbaijan on May 27 at San Francisco; Turkey on June 1 at Harrison, New Jersey; and Nigeria on June 7 at Jacksonville, Florida. They travel the following day to their base camp in Sao Paulo.
At the World Cup, they open against Ghana on June 16 at Natal, face Cristiano Ronaldo's Portugal six days later in the Amazon rain forest city of Manaus and close the group stage against Germany on June 26 at Recife.
30 players selected:
The 30-man preliminary U.S. World Cup roster announced Monday by coach Jurgen Klinsmann. A final 23-man roster must be submitted to FIFA by June 2:
Goalkeepers: Brad Guzan (Aston Villa, England), Tim Howard (Everton, England), Nick Rimando (Salt Lake)
Defenders: DaMarcus Beasley (Puebla, Mexico), Matt Besler (Kansas City), John Brooks (Hertha Berlin, Germany), Geoff Cameron (Stoke, England), Timmy Chandler (Nuremberg, Germany), Brad Evans (Seattle), Omar Gonzalez (Los Angeles), Clarence Goodson (San Jose), Fabian Johnson (Hoffenheim, Germany), Michael Parkhurst (Columbus), DeAndre Yedlin (Seattle)
Midfielders: Kyle Beckerman (Salt Lake), Alejandro Bedoya (Nantes, France), Michael Bradley (Toronto), Joe Corona (Tijuana, Mexico), Brad Davis (Houston), Mix Diskerud (Rosenborg, Norway), Maurice Edu (Philadelphia), Julian Green (Bayern Munich, Germany), Jermaine Jones (Besiktas, Turkey), Graham Zusi (Kansas City)
Fowards: Jozy Altidore (Sunderland, England), Terrence Boyd (Rapid Vienna, Austria), Clint Dempsey (Seattle), Landon Donovan (Los Angeles), Aron Johannsson (AZ Alkmaar, Netherlands), Chris Wondolowski (San Jose)