Alftanes's 2026 population is now estimated at 2,458.In 2000, the population of Alftanes was 1,388.Alftanes experienced a decrease of -14 residents over the past year, marking an annual decline of -0.57%.These population values and projections come from Statistics Iceland PX table MAN030102 localities population series and World Population Review Internal Projections.
City | 2026 Pop.↓ | Growth |
|---|---|---|
| Reykjavik | 249,228 | 1.96% |
| Keflavik og Njardvik | 23,732 | 4.22% |
| Akureyri | 20,483 | 1.59% |
| Selfoss | 10,597 | 3.61% |
| Akranes | 8,530 | 2.25% |
| Vestmannaeyjar | 4,537 | 1.05% |
| Grindavik | 3,658 | 1.16% |
| Hveragerdi | 3,622 | 5.14% |
| Isafjordur | 2,707 | 0.52% |
| Egilsstadir | 2,686 | 1.21% |
| Saudarkrokur | 2,612 | 0.08% |
| Husavik | 2,497 | 0.97% |
| Alftanes | 2,458 | -0.57% |
| Thorlakshofn | 2,235 | 4.73% |
| Borgarnes | 2,204 | 1.33% |
| Sandgerdi | 2,077 | 2.16% |
| Gardur | 1,965 | 2.77% |
| Hofn i Hornafirdi | 1,795 | 0.79% |
| Vogar | 1,499 | 3.95% |
| Neskaupstadur | 1,466 | 0.21% |
