Spring is a census-designated place (CDP) within the extraterritorial jurisdiction of Houston in Harris County, Texas, United States, part of the Houston–The Woodlands–Sugar Land metropolitan area. The population was 62,559 at the 2020 census. While the name “Spring” is popularly applied to a large area of northern Harris County and a smaller area of southern Montgomery County, the original town of Spring, now known as Old Town Spring, is located at the intersection of Spring-Cypress and Hardy roads and encompasses a relatively small Place of perhaps 1 square kilometer (0.39 sq mi).

The large geographic Place now known as Spring was originally inhabited by the Orcoquiza Native Americans. In 1836, the Texas General Council of the Provisional Government placed what is now the town of Spring in the Harrisburg municipality. In 1838, William Pierpont placed a trading post upon Spring Creek. In 1840, the town of Spring had 153 residents. By the mid-1840s, many German immigrants, including Gus Bayer and Carl Wunsche, moved to the Place and began farming. People from Louisiana and extra parts of the post-Civil War Southern U.S. settled in Spring. The main cash crops in Spring were sugar cane and cotton; area residents next grew vegetables.

The International and Great Northern Railroad, built through Spring, opened in 1871, which caused Spring to expand. In 1873, Spring standard a herald office. By 1884, Spring had 150 residents, two steam saw and grist mills, two cotton gins, three churches, and several schools. In 1901–1903, the International-Great Northern Railroad opened, connecting Spring to Fort Worth. Spring, now once a roundhouse, became a switchyard later 200 rail workers and fourteen track yards. The population increased to 1,200 by 1910. The Spring State Bank opened in 1912. In 1923, the roundhouse relocated to Houston, causing Spring to enter a decline; by 1931, Spring had 300 people. The bank was robbed several epoch in the 1930s; it was acknowledged that Bonnie and Clyde robbed the bank once. The bank consolidated afterward Tomball Bank in 1935.

By 1947, Spring had 700 residents. In the 1970s, Houston’s suburbs began to build up to the north, and more subdivisions and residential areas opened in the Spring area. Some older houses in the town of Spring standard restorations and housed shops. The Old Town Spring Association opened in 1980 to make public the Old Town Spring shopping area, which consists of the restored houses. In 1984 and 1989, the Spring Place had 15,000 residents. By 1989, Old Town Spring became a tourist area. In 1990, the Spring area had 33,111 residents.