As of the census of 2007, there were 72,984 people, 14,770 households, and 12,941 families residing in the city. The population density was 5,560.3/km² (15,022.2/mi²). There were 14,987 housing units at an average density of 1,193.1/km² (3,087.6/mi²). The racial makeup of the city was 38.42% White, 10.20% African American, 1.32% Native American, 1.02% Asian, 0.39% Pacific Islander, 49.04% from other races, and 4.36% from two or more races. Hispanic or Latino of any race were 86.36% of the population (meaning 13.64% are non-Hispanic).
Lynwood went through five phases of demographic change in the 20th century. First, a colonial settlement. Second, a farming small town. Third, a mostly working-class white suburb from 1940 to 1970. Fourth, a majority African-American city between 1970 and 1990, and today, a predominantly Latino community after a wave of immigration took place.
There were 14,770 households out of which 41.38% had children under the age of 18 living with them, 54.17% were married couples living together, 20.6% had a female householder with no husband present, and 10.1% were non-families. 7.7% of all households were made up of individuals and 2.6% had someone living alone who was 65 years of age or older. The average household size was 4.8 and the average family size was 4.8.
In the city the population was spread out with 41.38% under the age of 18, 7.01% from 18 to 24, 31.04% from 25 to 44, 15.96% from 45 to 64, and 4.61% who were 65 years of age or older. The median age was 24 years. For every 100 females there were 104.6 males. For every 100 females age 18 and over, there were 104.2 males.
The median income for a household in the city was $40,886, and the median income for a family was $40,886. Males had a median income of $23,241 versus $19,149 for females. The per capita income for the city was $10,640. About 21.0% of families and 23.5% of the population were below the poverty line, including 28.3% of those under age 18 and 14.3% of those age 65 or over.