Fiction where the abnormal is normalised

Difficult to sum up in a title, but I'm looking for realistic fiction about societies and communities where people are living in abnormal and/or extreme circumstances, but the characters are used to it or don't know anything else, so they just treat it as normal. Examples would be people living in divided Berlin, or during the Troubles in Northern Ireland, or in a location with some kind of extreme climate or regular natural disasters. I'm interested in the contrast between how people in these situations think about them, compared with people who are seeing it from the outside.

I don't want books about heroics, or people trying to escape or fighting against whatever the circumstances are – I want books where ordinary people are just getting on with their lives, despite whatever it is that's constantly overshadowing them. I prefer realistic/historical fiction, rather than fantasy or dystopian. If anyone has any suggestions, please let me know.