Phalanx300 said:
the wealthy city of Stettin.
The
wealthy pile of rubble formerly known as Stettin, you mean ???
Here is how Stettin looked like soon after the defense collapsed and the Red Army conquered it:
https://www.youtube.com/watch?v=VQtJ8ChI7HU
Most of Germans from Stettin did not have to be deported, but escaped before the Red Army on their own.
Population of the city was:
1939 (pre-war) - over 380 thousand inhabitants
Late April 1945 - 6 thousand inhabitants (less than 2% of pre-war pop.)
Late May 1945 - 84 thousand inhabitants (around 22% of pre-war pop.)
The increase from April to May was due to the returns of Germans who had previously fled from the Red Army.
But even after that the population was still just 22% of pre-war level, because only some part of the population decided to return.
In other parts of Pomerania, majority of Germans had also escaped (or got evacuated by German administration) before military operations ended.
According to A. Kilnar, "Repatriacja Niemców z Ziem Zachodnich" (published in 1961), when the Red Army handed over Pomerania to Polish administration in July 1945, many regions had only a small fraction of their pre-war population size - he gives examples from several counties:
Gryfino (Greifenhagen) county - 10% of pre-war population size
Szczecin (Stettin) county - 13%
Stargard (Stargard in Pommern) - 17%
Wałcz (Deutsch Krone) - 20%
Choszczno (Arnswalde) - 23%
Trzcianka (Schönlanke) - 25%
Of course if some more Germans attempted to return, they were being stopped along the new border after that (July 1945).
But due to mass flight and evacuations during the war, much of the ethnic cleansing had already been accomplished before the last bomb exploded.
Organized deportations began later.
Polish census of 14.02.1946 counted the following number of Germans (those to be deported):
In areas annexed from Germany after WW2:
2,076,000 (including 1,239,300 in Lower Silesia - Wroclaw Voivodeship - and 474,300 in Western Pomerania - Szczecin Voivodeship)
That included 719,900 urban population and 1,356,100 rural population.
In other regions of Poland: 212,300
During the next several months, most of those Germans were deported.
On 15.09.1946 there were:
856,000 Germans still residing in Poland (including 418,000 in Wroclaw Voivodeship and 249,000 in Szczecin Voivodeship)
This doesn't include, of course, Non-German former citizens of Germany who were given Polish citizenship and were allowed to stay (see post #43).