In 1998, Hermione went back to Hogwarts to attain her N.E.W.Ts. She was the only one of the trio to do this. By 2017, Hermione and Ron were married with two children: Rose and Hugo Weasley. Hermione is also the godmother of Harry and Ginny’s oldest child, James. On September 1, 2017, Hermione and Ron brought their children to King’s Cross Station to see Rose off for her first year at Hogwarts School of Witchcraft and Wizardry, and met Harry, Ginny, and their three children there.

Hermione attained a high position in the Ministry of Magic, first through the Department for the Regulation and Control of Magical Creatures. There, she continued her work with S.P.E.W., working for the rights of underprivileged non-humans such as house-elves. She then went on to attain a high position in the Department of Magical Law Enforcement, eradicating the old laws biased in favour of pure-bloods. Along with Harry and Ron, she helped to revolutionize the Ministry and reform the wizarding world. At some point, Hermione, Harry and Ron were all featured on Chocolate Frog Cards for their accomplishments.

Hermione also eventually translated The Tales of Beedle the Bard from the original, which was written in runes and which Albus Dumbledore bequeathed to her in his will in 1997. Her new translation was published at some point and included notes on each tale written by Dumbledore before his death; these notes were lent to Hermione by her former professor, Hogwarts headmistress Minerva McGonagall.