Rizzo has received 2,202,494 votes, and Bryant, Zobrist and Fowler also all have received more than 2 million votes. The closest race appears to be at shortstop. Russell has 1,489,998 votes, while the Rockies' Trevor Story is second, with 1,110,002 votes.
"I'm happy for our guys -- it's great for the organization," Cubs manager Joe Maddon said. "It will elevate their game. It's exciting for everybody. It's exciting for the players, Cubs fans and the city. You have to believe the ratings will be high in Chicago on that particular night. I know I'll be watching. I'm happy for the guys."
Russell could be the first Cubs shortstop selected to the All-Star team by the fans since Don Kessinger in 1970 and '72. Bryant is vying to join Hall of Famer Ron Santo as the only Cubs third baseman to earn a fan election. The Rockies' Nolan Arenado, who is tied for the Major League lead with 20 home runs and a NL-leading 57 RBIs, is second in the third-base balloting.
Zobrist was named to the American League All-Star team in 2009 and '13 while with the Rays. He's leading all second basemen, with the Nationals' Daniel Murphy second.
While Fowler is first among NL outfielders with 2,003,115 votes, teammate Jason Heyward is fourth with 1,271,107 votes.
"I tell my wife all the time, I didn't know that many people knew who I was," Fowler said, laughing. "It's definitely awesome [to get the support], and I hope I can still play if I make it."
The Cubs also will likely have at least one pitcher, if not two, named to the NL team. Maddon said he expected Jake Arrieta and Jon Lester to be selected.
"There's an argument for every one of them, obviously," Maddon said of his starting rotation, which leads the NL with a 2.39 ERA.
Would Maddon like to see Arrieta start the All-Star Game?
"Of course you would," Maddon said. "It's great for the player and great for the organization. I'm not worried about guys being overworked or overtaxed. It's one inning or two innings."
Fans can cast their votes for starters at MLB.com and all 30 club sites -- on their computers, tablets and smartphones -- exclusively online using the 2016 Esurance MLB All-Star Game Ballot until Thursday, June 30, at 10:59 p.m. CT. Vote up to five times in any 24-hour period for a maximum of 35 times.
Fans may also receive the ballot by texting VOTE to 89269 (USA) or 101010 (Canada). Or text VOTA for a ballot in Spanish. Message and data rates may apply. Up to five messages. No purchase required. Reply STOP to cancel. Reply HELP for info.
Following the announcement of the 2016 All-Stars, be sure to return to MLB.com and cast your 2016 Esurance MLB All-Star Game Final Vote for the final player on each league's All-Star roster. On Tuesday, July 12, watch the 2016 All-Star Game presented by MasterCard live on FOX, and during the game visit MLB.com to submit your choice for the Ted Williams Most Valuable Player Award presented by Chevrolet via the 2016 MLB All-Star Game MVP Vote.
The 87th All-Star Game, in San Diego, will be televised nationally by FOX, in Canada by Rogers Sportsnet and RDS, and worldwide by partners in more than 160 countries via MLB International's independent feed. ESPN Radio and ESPN Radio Deportes will provide national radio coverage of the All-Star Game. MLB.com, MLB Network and SiriusXM will also provide comprehensive All-Star Week coverage. For more information, please visit allstargame.com.
Carrie Muskat has covered the Cubs since 1987, and for MLB.com since 2001. She writes a blog, Muskat Ramblings. You can follow her on Twitter @CarrieMuskat and listen to her podcast. This story was not subject to the approval of Major League Baseball or its clubs.