The contract has an average annual value of $6 million and begins with the 2021-22 NHL season and goes through 2027-28. The defenseman could have been an unrestricted free agent after next season. He signed a six-year contract Oct. 12, 2014.
"I'm really happy that it went by quick, so I can stop thinking about all this and look forward to next season," Brodin said. "I'm really happy, super excited and I love Minnesota. I love everything about it: fans, organization, teammates. It feels like home.
"I think the last 2-3 years I've been taking my game up a little bit. I can keep improving and keep playing big minutes and be a big part of this team."
The 27-year-old scored an NHL career-high 28 points (two goals, 26 assists) in 69 regular-season games, and had two assists in four postseason games. Selected by the Wild with the No. 10 pick in the 2011 NHL Draft, he has 146 points (30 goals, 116 assists) in 555 regular-season games and 10 points (one goal, nine assists) in 48 Stanley Cup Playoff games.
"It was important in a lot of different ways, most importantly because of who Jonas is and what he brings to our team, as a person and as a player," Wild general manager Bill Guerin said. "And I think right now we have, with Jonas, we have a top-10 [defense] corps. So it was extremely important to get this done and we're extremely happy to have him locked in long term.
"The value in Jonas is his defensive play. He's an elite defender, not just a good one. He's elite. We put a premium on that, just like putting the puck in the net. He's one of those guys, when his name comes up, in any discussions with coaches, with other GMs, he's the type of guy who can defend the top players in the League, and there's a premium on that."
It's the second move recently by the Wild, who acquired forward Nick Bjugstad in a trade with the Pittsburgh Penguins on Sept. 11 for a conditional pick in the 2021 NHL Draft.
Minnesota (35-27-7, .558 points percentage) was the No. 10 seed in the Western Conference and won Game 1 of its best-of-5 Stanley Cup Qualifier series before losing three straight to the Vancouver Canucks.
NHL.com staff writer Tracey Myers contributed to this report