"I would have loved to have played more for New Zealand as well, but it became obvious this year that I was not in the selectors frame so committing myself to my family becomes the most important thing."
Ingram debuted for the Central Stags in 2002 and the punishing right hander has since been a regular member of the side in all formats of the game.
He retires as the second-highest run scorer in first-class cricket for Central Districts behind Mathew Sinclair and holds the two highest individual scores for the association - 247 against Northern Districts in 2008/9 and 245 not out against Wellington the following season.
He also holds a number of partnership records.
"I am proud of what I have achieved in the game and certainly don't retire with any regrets," Ingram said from his New Plymouth home.
"The HRV Cup win at Pukekura Park in 2010 will always be a highlight, as will the games that I played for the Black Caps."
Chief executive Hugh Henderson acknowledged the contribution that Ingram had made to Central Districts cricket.
"We are sad to be losing Peter to retirement as he has been a major contributor for the Stags over many years. He has been the best performed batsman in first-class cricket in New Zealand over the last six seasons where he has regularly featured among the leading run scorers," Henderson said.
"His positive approach at the top of the innings often put us in a dominant position early on in games and that will be missed. He has real passion for the Stags as well and this is something that has definitely rubbed off on all of those that he has played with."
Ingram will return to teaching on a full-time basis at New Plymouth's Francis Douglas Memorial College.