Seddiner See
# Seddiner See

Seddiner See is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.

## Demography

* Development of population since 1875 within the current Boundaries (Blue Line: Population; Dotted Line: Comparison to Population development in Brandenburg state; Grey Background: Time of Nazi Germany; Red Background: Time of communist East Germany)
* Recent Population Development and Projections (Population Development before Census 2011 (blue line); Recent Population Development according to the Census in Germany in 2011 (blue bordered line); Official projections for 2005-2030 (yellow line); for 2017-2030 (scarlet line); for 2020-2030 (green line)

| Year | Pop. | ±% p.a. |
| - | - | - |
| 1875 | 438 | — |
| 1890 | 434 | −0.06% |
| 1910 | 589 | +1.54% |
| 1925 | 1,091 | +4.20% |
| 1939 | 1,806 | +3.67% |
| 1950 | 2,711 | +3.76% |
| 1964 | 2,692 | −0.05% |
| Year | Pop. | ±% p.a. |
| 1971 | 2,755 | +0.33% |
| 1981 | 3,747 | +3.12% |
| 1985 | 3,921 | +1.14% |
| 1990 | 4,167 | +1.22% |
| 1995 | 4,268 | +0.48% |
| 2000 | 4,339 | +0.33% |
| 2005 | 4,279 | −0.28% |
| Year | Pop. | ±% p.a. |
| 2010 | 4,198 | −0.38% |
| 2015 | 4,349 | +0.71% |
| 2016 | 4,444 | +2.18% |
| 2017 | 4,606 | +3.65% |
| 2018 | 4,590 | −0.35% |
| 2019 | 4,551 | −0.85% |
| 2020 | 4,511 | −0.88% |
