Complex sentence: It has been noted that, in reality, while Orange County has traditionally been one of California's richest, whitest, and most conservative counties, demographic trends suggest the County's white population is downright geriatric.
Split into simpler sentences: It has been noted that, in reality, Orange County, California has traditionally been one of the state's richest, whitest, and most conservative counties. Demographic trends suggest the County's white population is downright geriatric.