In a series of vignettes, The House on Mango Street covers a year in the life of Esperanza, a Chicana (Mexican-American girl), who is about twelve years old when the novel begins. During the year, she moves with her family into a house on Mango Street. The house is a huge improvement from the family’s previous apartment, and it is the first home her parents actually own. However, the house is not what Esperanza has dreamed of, because it is run-down and small. The house is in the center of a crowded Latino neighborhood in Chicago, a city where many of the poor areas are racially segregated. Esperanza does not have any privacy, and she resolves that she will someday leave Mango Street and have a house all her own.

Esperanza matures significantly during the year, both sexually and emotionally. The novel charts her life as she makes friends, grows hips, develops her first crush, endures sexual assault, and begins to write as a way of expressing herself and as a way to escape the neighborhood. The novel also includes the stories of many of Esperanza’s neighbors, giving a full picture of the neighborhood and showing the many possible paths Esperanza may follow in the future.

After moving to the house, Esperanza quickly befriends Lucy and Rachel, two Chicana girls who live across the street. Lucy, Rachel, Esperanza, and Esperanza’s little sister, Nenny, have many adventures in the small space of their neighborhood. They buy a bike, learn exciting stories about boys from a young woman named Marin, explore a junk shop, and have intimate conversations while playing Double Dutch (jumping rope). The girls are on the brink of puberty and sometimes find themselves sexually vulnerable, such as when they walk around their neighborhood in high-heeled shoes or when Esperanza is kissed by an older man at her first job. During the first half of the year, the girls are content to live and play in their child’s world. At school, Esperanza feels ashamed about her family’s poverty and her difficult-to-pronounce name. She secretly writes poems that she shares only with older women she trusts.

Over the summer, Esperanza slips into puberty. She suddenly likes it when boys watch her dance, and she enjoys dreaming about them. Esperanza’s newfound sexual maturity, combined with the death of two of her family members, her grandfather and her Aunt Lupe, bring her closer to the world of adults. She begins to closely watch the women in her neighborhood. This second half of The House on Mango Street presents a string of stories about older women in the neighborhood, all of whom are even more stuck in their situations and, quite literally, in their houses, than Esperanza is. Meanwhile, during the beginning of the following school year, Esperanza befriends Sally, a girl her age who is more sexually mature than Lucy or Rachel. Sally, meanwhile, has her own agenda. She uses boys and men as an escape route from her abusive father. Esperanza is not completely comfortable with Sally’s sexual experience, and their friendship results in a crisis when Sally leaves Esperanza alone, and a group of boys sexually assaults Esperanza in her absence.

Esperanza’s traumatic experiences as Sally’s friend, in conjunction with her detailed observations of the older women in her neighborhood, cement her desire to escape Mango Street and to have her own house. When Esperanza finds herself emotionally ready to leave her neighborhood, however, she discovers that she will never fully be able to leave Mango Street behind, and that after she leaves she’ll have to return to help the women she has left. At the end of the year, Esperanza remains on Mango Street, but she has matured extensively. She has a stronger desire to leave and understands that writing will help her put distance between herself and her situation. Though for now writing helps her escape only emotionally, in the future it may help her to escape physically as well.