|— Town —|
|• Type||Mayor: Jeff Calderon|
|• Total||0.5 sq mi (1.2 km2)|
|• Land||0.5 sq mi (1.2 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||4,432 ft (1,351 m)|
|• Density||388.8/sq mi (150.1/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1370547|
Valentine's name refers to the date of its founding in 1882 by a Southern Pacific Railroad construction crew: February 14. It is one of several cities named Valentine in the United States where one may send envelopes in order to obtain special holiday postmarks for Valentine's Day from the United States Postal Service, for which the town and its post office have received national media attention. Valentine is also home to the unusual sculpture Prada Marfa, which mimics a Prada store and which was installed in 2005 on the town's main street, California Avenue (US Route 90).
"Cahill, U.S. Marshall" was set in Valentine, Texas.
Valentine is located at .(30.587504, -104.495498)
According to the United States Census Bureau, the town has a total area of 0.5 square miles (1.3 km2), all land.
As of the census of 2000, there were 187 people, 72 households, and 55 families residing in the town. The population density was 388.8 people per square mile (150.4/km²). There were 138 housing units at an average density of 286.9 per square mile (111.0/km²). The racial makeup of the town was 89.84% White, 0.53% African American, 8.02% from other races, and 1.60% from two or more races. Hispanic or Latino of any race were 58.82% of the population.
There were 72 households out of which 33.3% had children under the age of 18 living with them, 65.3% were married couples living together, 2.8% had a female householder with no husband present, and 23.6% were non-families. 22.2% of all households were made up of individuals and 13.9% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.04.
In the town the population was spread out with 25.7% under the age of 18, 3.7% from 18 to 24, 24.6% from 25 to 44, 25.1% from 45 to 64, and 20.9% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 103.3 males. For every 100 females age 18 and over, there were 104.4 males.
The median income for a household in the town was $34,375, and the median income for a family was $38,750. Males had a median income of $22,031 versus $33,333 for females. The per capita income for the town was $16,136. About 12.8% of families and 10.7% of the population were below the poverty line, including 13.2% of those under the age of eighteen and none of those sixty five or over.
 Government and infrastructure
The United States Postal Service operates the Valentine Post Office. On Valentine's Day many people send postcards to Valentine, Texas. In July 2011 the USPS announced that the post office may close.
- "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- "US Board on Geographic Names". United States Geological Survey. 2007-10-25. Retrieved 2008-01-31.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Post Office™ Location - VALENTINE." United States Postal Service. Retrieved on July 26, 2011. "311 W CALIFORNIA AVE VALENTINE, TX"
- Weisman, Laura. "Nine Houston post offices marked for closure (with poll)." Houston Chronicle. July 26, 2011. Retrieved on July 26, 2011.
- "Historic Earthquakes: Near Valentine, Texas". United States Geological Survey. 2009-01-30. Retrieved 2010-01-15.