Amid a swirl of probes of the administration, Mayor de Blasio’s press secretary revealed on Thursday that she’s resigning from her post after having served for roughly a year.

City officials insisted the departure of Karen Hinton – slated for after the fiscal ’17 budget is adopted in June – has nothing to do with the flurry of investigations of Hizzoner’s fundraising, an NYPD gifts-for-favors scandal and a rotten LES real estate deal.

They said she initially submitted her resignation papers on April 6 – around the time The Post broke the story about the federal probe of high-ranking NYPD officers.

“Karen Hinton has served our administration with skill, with devotion, with a passionate commitment to others, and she will be missed,” de Blasio said in a statement.

Public relations veteran George Arzt said the timing of Hinton’s departure was sure to raise eyebrows.

“It comes at a difficult time when you have all these investigations swirling around the administration and Karen was seen, at least from the outside, as someone who can handle the storm,” he told The Post. “I think it has an immediate impact because Karen is a professional and highly respected in the field. And people are going to ask why she left.”

Throughout his more than two-year tenure as mayor, de Blasio has repeatedly criticized his own ability to communicate a clear message to the public – a not so subtle dig at his press operations.

He also publicly threw Hinton and his communications team under the bus several times – including on April 6, after a damning story accused him of pulling funds from a vital water tunnel project.

“There are times when my team does not do a good job of explaining something,” the mayor said that day. “This just was not explained properly.”

The press office has also seen a host of transfers and departures under de Blasio.

Hinton, whose departure was first reported by The New York Times, called her work for the mayor a “privilege,” and said she plans to return to her prior gig of working with Ecuadorians in a drawn-out lawsuit against Chevron.

She also cited a desire to spend more time with her teenage daughter, who is entering her senior year of high school in September.

“I am missing her a great deal and want to be part of her last year at home before college,” said Hinton.