The census takers of 1990 handed Scottsdale two numbers that framed the decade ahead: 130,069 people and 185 square miles. The first said the little art-and-resort town had become one of America’s fast-growing cities; the second said the great Drinkwater annexation campaign of the early 1980s was finished, the map now running from the old townsite deep into the McDowell foothills. The land grab was over. The argument about what to do with the land was just beginning.
Most of that new territory was raw Sonoran Desert — a checkerboard of private holdings and Arizona State Trust land, the latter legally bound to be sold or leased for the benefit of schools, generally to the highest bidder. And development was not waiting politely at the city’s edge: graded pads appeared higher on the McDowell bajadas each season, the leading edge of the luxury-golf push that had begun with Desert Highlands and the Pinnacle Peak projects a few years earlier. Anyone driving north could see where the trend line ended — rooftops at the ridgeline.
That visibility mattered. The same electorate that had chosen greenbelt over concrete in an earlier generation began asking whether the mountains should be next, or whether Scottsdale should draw a line. Within a year, volunteers would organize the McDowell Sonoran Land Trust, and the quiet census year of 1990 would become the baseline the whole decade measured itself against: the moment before the buying began. The full story is in the 1990s chapter; the annexations that set the table are in the 1980s.