The study was carried out by Swedish insurance company Folksam who asked over 2,000 people which of the two animals they preferred. When the results came in it was found that 58 percent have a preference for dogs.
"Most have a clear picture of what category they belong to,"Jan Lindblom of Folksam told the TT news agency.
Dogs also seem to be more popular with Swedes as they get older. In the age group of 56-79 of those surveyed it found that 63 percent prefer dogs.
By contrast, in the 14-35 age category it was an even split of 50 percent saying they like the typical domestic pets.
The study also seemed to back up the cliché of a dog being man's best friend with 60 percent of males saying they are a dog person. For women the figure was 55 percent.
Those findings were a surprise for the president of the Swedish kennel club Ulk Uddman.
"That's not my picture. Our experience is that it is women who take care of the dog to a greater extent. We also have more women as members," Uddman told TT.
Uddman added that 'dog people' tend to be those who enjoy being outdoors and said the stats about older people preferring dogs weren't a great surprise.
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"It is probably connected with the fact that older people have more time. Very many want a dog but they can't solve the practicalities of it when they are younger," said Uddman.