Nazi concentration camps
Statistics

There were 27 main camps and, according to historian Nikolaus Wachsmann 's estimate, more than 1,100 satellite camps. This is a cumulative figure that counts all the subcamps that existed at one point; historian Karin Orth estimates the number of subcamps to have been 186 at the end of 1943, 341 or more in June 1944, and at least 662 in January 1945.

The camps were concentrated in prewar Germany and to a lesser extent territory annexed to Germany. No camps were built on the territory of Germany's allies that enjoyed even nominal independence. Each camp housed either men, women, or a mixed population. Women's camps were mostly for armaments production and located primarily in northern Germany, Thuringia, or the Sudetenland, while men's camps had a wider geographical distribution. Sex segregation decreased over the course of the war and mixed camps predominated outside of Germany's prewar borders.

About 1.65 million people were registered prisoners in the camps, of whom, according to Wagner, nearly a million died during their imprisonment. Historian Adam Tooze counts the number of survivors at no more than 475,000, calculating that at least 1.1 million of the registered prisoners must have died. According to his estimate, at least 800,000 of the murdered prisoners were not Jewish. In addition to the registered prisoners who died, a million Jews were gassed upon arriving in Auschwitz; including these victims, the total death toll is estimated at 1.8 to more than two million. Most of the fatalities occurred during the second half of World War II, including at least a third of the 700,000 prisoners who were registered as of January 1945.
length_constraints:number_paragraphs[2]