Sundström is a Swedish surname, a compound of the Swedish words sund (sound; passage of water) ström (stream and/or stream in water)
Geographical distribution
As of 2014, 79.2% of all known bearers of the surname Sundström were residents of Sweden (frequency 1:1,192) and 19.5% of Finland (1:2,697).
In Sweden, the frequency of the surname was higher than national average (1:1,192) in the following counties: 1. Norrbotten County (1:244) 2. Västernorrland County (1:356) 3. Västerbotten County (1:424) 4. Jämtland County (1:654) 5. Gävleborg County (1:761) 6. Dalarna County (1:784) 7. Södermanland County (1:881) 8. Uppsala County (1:918) 9. Örebro County (1:1,026) 10. Västmanland County (1:1,099) 11. Värmland County (1:1,119)
In Finland, the frequency of the surname was higher than national average (1:2,697) in the following regions: 1. Åland (1:263) 2. Ostrobothnia (1:619) 3. Uusimaa (1:1,416) 4. Central Ostrobothnia (1:1,423) 5. Southwest Finland (1:2,030)