Currently, 138 of the 193 United Nations (UN) member states and two non-member states have recognized Palestine. Stack Overflow's developer survey recognizes Hong Kong and Taiwan (which is recognized by fewer than 20 member states). These are far more internationally contentious.
Stack Overflow should recognize the Occupied Palestinian Territory in its member survey too. This term is accepted by The United Nations, the European Union, International Committee of the Red Cross, and the government of the United Kingdom. This is also the official name with ISO, before it was changed to the State of Palestine, which is also acceptable.