At various points this year, all five of her published books - four in the hugely successful Twilight series of vampire romance novels and one work of adult science-fiction - have been in the Top 10 in both Britain and the United States.Last year Meyer sold an astonishing 27million books in 37 countries - eclipsing even the Harry Potter series - and when a film version of Twilight was released starring British heart-throb Robert Pattinson as vampire Edward Cullen, it made more than £200million worldwide.
This remarkable story is made even more so by Meyer's apparently ordinary lifestyle.
In her hometown (population: 4,900), locals say she is rarely seen without the company of one of her three sons - Gabe, 11, Seth, eight, and Eli, six - or Christian, her husband of 15 years.
'She was bright but not overly so,' says Conrad Davis, her former English teacher. 'Stephenie was in my daughter's year but when she became famous both of us had to look her picture up to remember her clearly.
She just blended in.' After school, Stephenie read English at Brigham Young University, a Mormon-run college in Salt Lake City, Utah, before returning home to Arizona.
She met her husband - nicknamed Pancho - for the first time at a church event when she was aged just four.
He has now quit his job as an auditor to be able to care for their sons while Stephenie writes her hugely successful books from an office at their home.
Yet little is known about the slightly plump brunette.
Elizabeth Eulberg, the author's director of worldwide publicity at her publisher, Little, Brown, told The Mail on Sunday: 'Stephenie rarely does Press.
'That is her secret - she wants to live an anonymous life and in Cave Creek she can. It sounds boring but that's the life she wants and loves.' Meyer is the second of six children born to accountant Stephen Morgan and his wife Candace.