Chicago Public Schools is becoming less low-income

About six years ago, Lori Zaimi’s daughter told her mom that another longtime friend was leaving their elementary school in Edgewater on the North Side. The friend’s apartment building, she explained, had been sold to someone who was going to renovate it.

Zaimi recognized the familiar story of gentrification, when higher-income families move into a working class neighborhood and drive up property values. She’d seen property demolitions and pricey single family housing go up across Edgewater, the formerly working class neighborhood where she grew up...