Statistics from SCB
Södermanlands län
Population, population change and age structure in Flen, compared with Sweden. Statistics from SCB.
Population
15,095
31 December 2025
Five-year change
−8.1%
2020–2025
Sweden: +2.2%
Calculated by sverige.fyi from SCB data
Population trend
Population on 31 December each year, 2015–2025.
| Year | Residents |
|---|
| 2015 | 16,440 |
|---|
| 2016 | 16,830 |
|---|
| 2017 | 16,864 |
|---|
| 2018 | 16,705 |
|---|
| 2019 | 16,585 |
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| 2020 | 16,431 |
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| 2021 | 16,316 |
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| 2022 | 16,058 |
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| 2023 | 15,668 |
|---|
| 2024 | 15,362 |
|---|
| 2025 | 15,095 |
|---|
Age structure
Share of the population in each five-year age group, 2025.
Flen Sweden
Hover, or focus the chart and step with the left and right arrow keys.
| Age | Flen · Share | Flen · Count | Sweden · Share | Sweden · Count |
|---|
| Ages 0–4 | 3.9% | 587 | 4.9% | 522,283 |
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| Ages 5–9 | 5.5% | 834 | 5.6% | 598,642 |
|---|
| Ages 10–14 | 5.7% | 862 | 5.9% | 624,495 |
|---|
| Ages 15–19 | 5.6% | 850 | 6.0% | 634,336 |
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| Ages 20–24 | 4.2% | 627 | 5.7% | 602,824 |
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| Ages 25–29 | 3.9% | 588 | 5.8% | 618,019 |
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| Ages 30–34 | 4.8% | 725 | 7.0% | 745,695 |
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| Ages 35–39 | 5.2% | 782 | 7.1% | 756,657 |
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| Ages 40–44 | 4.6% | 695 | 6.3% | 667,164 |
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| Ages 45–49 | 5.5% | 835 | 6.0% | 638,977 |
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| Ages 50–54 | 6.0% | 904 | 6.3% | 667,467 |
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| Ages 55–59 | 6.8% | 1,028 | 6.3% | 663,165 |
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| Ages 60–64 | 7.4% | 1,118 | 5.9% | 630,264 |
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| Ages 65–69 | 7.2% | 1,081 | 5.2% | 550,159 |
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| Ages 70–74 | 7.2% | 1,090 | 4.8% | 505,291 |
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| Ages 75–79 | 7.3% | 1,099 | 4.7% | 496,130 |
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| Ages 80–84 | 5.2% | 780 | 3.6% | 379,771 |
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| Ages 85–89 | 2.7% | 412 | 1.9% | 196,920 |
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| Ages 90–94 | 1.1% | 162 | 0.8% | 82,062 |
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| Ages 95–99 | 0.2% | 35 | 0.2% | 22,225 |
|---|
| 100 years or older | 0.0% | 5 | 0.0% | 2,988 |
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