Parsteinsee is a municipality in the district of Barnim in Brandenburg in Germany.

The municipality of Parsteinsee was formed in 2002 by merging the municipalities of Parstein and Lüdersdorf.

From 1815 to 1945, the constituent localities of Parsteinsee were part of the Prussian Province of Brandenburg, from 1945 to 1952 of the State of Brandenburg, from 1952 to 1990 of the East German Bezirk Frankfurt and since 1990 again of Brandenburg.

Parsteinsee: Population development
within the current boundaries (2020)

Year Pop. ±% p.a. 1875 1,050 —     1890 962 −0.58% 1910 945 −0.09% 1925 1,021 +0.52% 1933 964 −0.72% 1939 890 −1.32% 1946 1,179 +4.10% 1950 1,263 +1.74% 1964 1,021 −1.51% 1971 913 −1.58% 1981 689 −2.78% 1985 707 +0.65% 1989 675 −1.15% 1990 664 −1.63% 1991 636 −4.22%

Year Pop. ±% p.a. 1992 630 −0.94% 1993 651 +3.33% 1994 632 −2.92% 1995 625 −1.11% 1996 615 −1.60% 1997 633 +2.93% 1998 626 −1.11% 1999 626 +0.00% 2000 616 −1.60% 2001 597 −3.08% 2002 596 −0.17% 2003 593 −0.50% 2004 572 −3.54% 2005 574 +0.35% 2006 557 −2.96%

Year Pop. ±% p.a. 2007 542 −2.69% 2008 552 +1.85% 2009 534 −3.26% 2010 557 +4.31% 2011 556 −0.18% 2012 545 −1.98% 2013 543 −0.37% 2014 552 +1.66% 2015 556 +0.72% 2016 541 −2.70% 2017 542 +0.18% 2018 538 −0.74% 2019 561 +4.28% 2020 547 −2.50%

• Parsteiner See