Andersson looked almost shocked in the television broadcast when her name was read out by Prince Carl Philip.
She became the first cross-country skier to win the prize since Charlotte Kalla in 2008.
- It wasn't really expected that the evening would end the way it did, but none the less fun, Andersson says from her hotel room in Goms, Switzerland, where she is recharging for the weekend's World Cup competitions on Tuesday morning to Morgonstudion.
68,518 more votes than Duplantis
The skier won Radiosport's vote, where the Swedish people make their choice, with the outclassing numbers 161,374 against 92,856.
- It was more than I had expected.
As I said in my acceptance speech, I had a hard time believing that I could reach a greatness like Duplantis and what he managed to create.
It was both a violent and quiet celebration at the same time.
- Some of my teammates threw themselves at me in my hotel room because they were so happy and then after that it was just a matter of going to bed "well then this day is over" and start loading up for training here.