|• Total||2.6 sq mi (6.7 km2)|
|• Land||2.6 sq mi (6.7 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||46 ft (14 m)|
|• Density||770/sq mi (300/km2)|
|Time zone||UTC-6 (Central (CST))|
|• Summer (DST)||UTC-5 (CDT)|
|Area code(s)||281, 713, 832, 346|
|GNIS feature ID||1380920|
Sheldon is an unincorporated community and a census-designated place (CDP) in northeastern Harris County, Texas, United States located completely inside the extraterritorial jurisdiction of the City of Houston. The Sheldon area is located along Beltway 8 and US Highway 90 approximately twelve miles (20 km) northeast of Downtown Houston.
Since the 1950s, the population growth of Sheldon has grown to extend past the statistical census-designated place (CDP) boundary originally delineated by the United States Census Bureau. The local understanding of the area is that it corresponds to that of boundary of the Sheldon Independent School District.
Residential and commercial development in Sheldon has increased since the 2000s, gradually transforming the once rural area into one of the Houston area's fast growing suburban communities by percentage.
The population for the area within the CDP was 1,990 at the 2010 census. Zip codes that correspond to the Sheldon area include 77049 and 77044.
Sheldon opened in the 1850s and served as a retail marketing point for agricultural goods and lumber from an area on the San Jacinto River. Its name originated from Henry K. Sheldon, who was a stockholder in a railroad company. In 1887 a post office opened. In 1896 Sheldon had 50 residents and a general store and a grocer. In 1905 it had a school. In the 1940s it had 150 residents and ten businesses. In the 1950s Sheldon had 200 residents. In 1955 the post office closed. In 1980 Sheldon had 1,665 residents. In 1990 it had 1,653 residents. In 2000 it had 1,831 residents.
In a 10-year period before 2011, the population increased by 46%.
Sheldon is located at (29.860569, -95.133801) in northeastern Harris County.
The area is within the watersheds of Greens Bayou, Carpenters Bayou, and San Jacinto River. The boundary is unofficially known as corresponding to that of Sheldon Independent School District which is geographically bound by Greens Bayou on the west and the San Jacinto River on the east. The northern border is the southern shore of Lake Houston and the south boundary runs about a mile south of the Crosby Freeway (US Hwy 90).
Sheldon has a mostly wooded geographic profile with some grassy prairies. The area is also home to Sheldon Lake State Park and Environmental Learning Center which has a variety of land and water fauna.
The majority of Sheldon falls under the jurisdiction of Harris County Commissioner Precinct 1 with a small portion in Precinct 2.
Major arteries in the area include Beltway 8 and US Highway 90.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Sheldon has a humid subtropical climate, abbreviated "Cfa" on climate maps.
As of the census of 2000, there were 1,831 people, 546 households, and 447 families residing in the CDP. The population density was 709.0 people per square mile (274.0/km²). There were 600 housing units at an average density of 232.3 per square mile (89.8/km²). The racial makeup of the CDP was 78.92% White, 2.73% African American, 0.76% Native American, 0.05% Asian, 14.64% from other races, and 2.89% from two or more races. Hispanic or Latino of any race were 34.68% of the population.
There were 546 households out of which 46.5% had children under the age of 18 living with them, 60.1% were married couples living together, 14.8% had a female householder with no husband present, and 18.1% were non-families. 13.7% of all households were made up of individuals and 3.3% had someone living alone who was 65 years of age or older. The average household size was 3.35 and the average family size was 3.61.
In the CDP, the population was spread out with 34.6% under the age of 18, 9.4% from 18 to 24, 31.9% from 25 to 44, 18.2% from 45 to 64, and 5.8% who were 65 years of age or older. The median age was 28 years. For every 100 females, there were 103.7 males. For every 100 females age 18 and over, there were 100.8 males.
The median income for a household in the CDP was $42,981, and the median income for a family was $45,219. Males had a median income of $31,071 versus $26,599 for females. The per capita income for the CDP was $15,309. About 9.0% of families and 11.7% of the population were below the poverty line, including 15.3% of those under age 18 and 4.2% of those age 65 or over.
Government and infrastructure
The area of Sheldon was served by two volunteer fire departments before merging into one in 1996, the Sheldon Community Fire and Rescue. There are currently 3 stations with a fourth station planned.
The United States Postal Service built a post office in Sheldon in 1890 and it operated until its closure in 1953. Sheldon is currently serviced by neighboring post offices.
Several large companies are located in Sheldon including LyondellBasell, Apache Industrial Services, National Oilwell Varco, Genan, and Koch. Sheldon is also home to the master planned enterprise park Generation Park which houses the headquarters of Fortune 500 FMC technologies which opened February 2016. Redemption Square in Generation Park is currently under construction with office buildings, restaurants, and hotels set to open in 2017.
Other companies that are currently relocating their offices to Sheldon include Stolt-Nielsen, McCord Development, and Patterson UTI which is building is corporate campus on 365 acres.
Primary and secondary schools
Sheldon residents are zoned to Sheldon Independent School District. The CDP itself is zoned to: Sheldon Early Childhood Academy, Sheldon Elementary School, Michael R. Null Middle School, and C.E. King High School. C.E. King stands for Cortes Ewing King, who donated the land where the middle school and old high school are built. 
The area middle school was C.E. King Middle School until Null Middle opened in 2009.
In 1905, one school in Sheldon had 39 African American students with a single teacher, while another had 15 White students and a teacher as well.
Private and Charter schools
Holy Trinity Episcopal School, a Pre-K3 - 12 Episcopal private school.
The Rhodes School, a magnet charter school.
Colleges and universities
San Jacinto College District serves the area. There is an extension center of San Jacinto College in Sheldon Early College High School with the nearest location being the North campus just south of Sheldon.
In 2015 San Jacinto College announced it purchased 57 acres in Generation Park to build the Sheldon Campus.
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Sheldon and Carroll elementaries have become feeder schools for Michael R. Null Middle School[...]
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- "San Jacinto College and McCord Development Announce 57-acre Deal ." Generation Park