Bill Bryson famously came from Iowa ("Somebody had to"). So do the farming dynasty of Jane Smiley's now-completed trilogy.
Some Luck showed us the Langdons from the 1920s to the 1950s. Early Warning followed them over the next 30-odd years. Golden Age takes us from 1987 to 2019. All three novels feature a chapter for every year. It helps the author with plot movement, but sometimes burdens her with background.
So here, the outside world slides past or smashes in, via 9/11, the 1987 Wall St slump, both Iraq Wars, and a young woman called Lewinsky. So do lower-key, higher-impact events: climate change, rural debt, genetic modification, soil impoverishment, all of which affect and erode rural life.
But, as usual with quality fiction, it's the private lives that engage you most. The novel begins with a just-discovered family member, and ends with the deaths of two others, three generations apart.