Jacinto City is a city in Harris County, Texas, United States, east of the intersection of Interstate 10 and the East Loop of Interstate 610. Jacinto City is portion of the Houston–Sugar Land–Baytown metropolitan Place and is bordered by the cities of Houston and Galena Park. The population was 9,613 at the 2020 census.

In 1941 Frank Smart established a subdivision which filled taking into account shipyard workers and workers at manageable steel mills and achievement plants. Jacinto City incorporated in 1947 with nearly 3,800 residents; its first mayor was Inch Handler. Because of the 1947 incorporation, Houston did not incorporate Jacinto City’s territory into its city limits, while Houston annexed surrounding areas that were unincorporated. The town yet serves as a bedroom community for local industry. In the 1950s the city opened a city hall and recreational facilities. By 1960 the city had 9,500 people and by 1964 the city had 11,500 people. In 1966 the city had seventeen churches, two schools, one hospital, one bank, and one library. A waste-water knack funded by the Environmental Protection Agency opened in 1972; the Handbook of Texas stated that this may be due to complaints from residents approximately chemical vapors in 1969. In 1990 the city had 9,343 people.

Jacinto City was known for the murder of Louis “Buddy” Musso by Susan (or Suzanne) “Sue” Basso in 1998. Basso lived in Jacinto City and held Musso adjoining his will there; Musso died in an apartment unit used by an partner in crime in Houston. Musso’s corpse was dumped in adjoining Galena Park.

From 1996 to 2006 the median price per square foot of the Jacinto City houses increased from approximately $35 to approximately $70.