Flen
- 📍 Location: Södermanland County,
42 km north-west of Nyköping - 🌍 Region: Svealand
- 👥 Population: 15,095 (Dec 31, 2025)
- 🏙️ Largest towns: Flen, Malmköping, Hälleforsnäs
- 📐 Area: 721 km² (land area)
- 🚗 To Stockholm: about 90 km in a straight line
- ⏰ Time zone: CET (UTC +1, DST CEST +2)
- 💰 Currency: Swedish krona (SEK)
Answers to frequently asked questions
What is the population of Flen Municipality?
Flen Municipality had 15,095 residents on December 31, 2025, down 1,336 (8.1%) from December 31, 2020 (Statistics Sweden).
Which county is Flen Municipality in?
Flen Municipality is in Södermanland County, in the Svealand region of Sweden. The county has 9 municipalities and its seat is Nyköping.
What are the largest towns in Flen Municipality?
The largest urban area is Flen with 6,266 residents, followed by Malmköping (1,992), Hälleforsnäs (1,536), Sparreholm (725) and Mellösa (541). In total the municipality has 7 urban areas (Statistics Sweden, 2023).
How far is Flen from Nyköping?
Flen is about 42 km from the county seat Nyköping in a straight line; Nyköping lies to the south-east of Flen. The distance by road is longer.
How far is Flen from Stockholm?
Flen is about 90 km from Stockholm in a straight line. The distance by road is longer.
How large is Flen Municipality?
The land area of Flen Municipality is 721 km² (Statistics Sweden, 2025). Population density is 21 residents per km².
What is Flen Municipality known for?
Flen Municipality is known for Harpsund, the Swedish prime minister's country retreat since 1953, the ice cream maker GB Glace and the annual markets in Malmköping. The town of Flen grew up as a railway junction and is called the city of ice cream.