|— City —|
|• Total||7.0 sq mi (18.0 km2)|
|• Land||7.0 sq mi (18.0 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||1,102 ft (336 m)|
|• Density||860/sq mi ( 340/km2)|
|Time zone||Central (CST) (UTC-6)|
|• Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1373362|
Decatur is a city located in Wise County, Texas, United States. The municipality is named for Stephen Decatur, Jr., the 19th century American military officer known for the quotation: "My country, may she always be in the right, but my country, right or wrong!"
The population was 6,042 at the 2010 census. A July 1, 2008 U.S. Census Bureau had estimated the population at 6,432. It is the county seat of Wise County. Decatur is part of the Dallas/Fort Worth Metroplex and is located twenty-five miles northwest of Fort Worth and forty-five miles northwest of Dallas.
Decatur is located at (33.231073, -97.588628).
According to the United States Census Bureau, the city has a total area of 7.0 square miles (18.0 km²). 7.0 square miles (18.0 km²) of it is land and none of the area is covered with water. The highest point of elevation in the county is at the location in Decatur which houses the courthouse. The intent of placing the town on this high point of elevation was to be able to sight and ward off any incoming attacks or raids by Native Americans.
As of the census of 2000, there were 5,201 people residing in the city. The population density was 747.6 people per square mile (288.5/km²). The racial makeup of the city was 81.64% White, 1.98% African American, 0.58% Native American, 0.73% Asian, 12.44% from other races, and 2.63% from two or more races. Hispanic or Latino of any race were 22.53% of the population.
There are 1,845 households out of which 37.6% have children under the age of 18 living with them, 56.1% are married couples living together, 11.7% have a female householder with no husband present, and 28.5% are non-families. 24.9% of all households are made up of individuals and 12.1% have someone living alone who is 65 years of age or older. The average household size is 2.67 and the average family size is 3.19.
In the city the population is spread out with 17.2% under the age of 18, 20.5% from 18 to 24, 38.1% from 25 to 44, 8.7% from 45 to 64, and 15.5% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 97.3 males. For every 100 females age 18 and over, there are 86.7 males.
The median income for a household in the city was $34,449, and the median income for a family was $40,580. Males had a median income of $30,512 versus $21,213 for females.
The City of Decatur is served by the Decatur Independent School District (DISD). It is the largest district in Wise County. Decatur ISD is centered in Decatur, Texas. The district currently has six campuses. The current campuses are: Decatur High School, McCarroll Middle School, Carson Elementary School, Rann Elementary School and Young Elementary. Decatur ISD Homepage In the 2007-2008 school year, Decatur ISD's enrollment was approximately 3,000 students.
Decatur Baptist College (now Dallas Baptist University) was the world's first junior college. Its Administration Building now houses the Wise County Heritage Museum.
During the last full week of July, Decatur is the home to the Wise County Old Settlers reunion. The Wise County Old Settlers Settlers Reunion has been going on since 1864.
Notable people 
Clint Cooper, PRCA rodeo cowboy
Tuf Cooper, PRCA rodeo cowboy
Cliff Cooper, PRCA rodeo cowboy
Will Gasperson, PRCA rodeo cowboy
Jake Halverson, PRCA rodeo cowboy
K.C. Jones, PRCA rodeo cowboy
Phil Ryan, Texas lawman
Guinn Williams, Western movie star
Community Information 
The City of Decatur has a full-service, award-winning public library. The Decatur Public Library is located at 1700 Hwy. 51 S.
- "Table 4: Annual Estimates of the Resident Population for Incorporated Places in Texas, Listed Alphabetically: April 1, 2000 to July 1, 2008" (CSV). United States Census Bureau, Population Division. 2009-07-01. Retrieved 2010-05-04.
- "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.
- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- Service Broadcasting Tower retrieved May 19, 2007
- Antenna Structure Registration #1040339 retrieved May 19, 2007
- Jim Tom Barton, "DECATUR, TX," Handbook of Texas Online (http://www.tshaonline.org/handbook/online/articles/hgd03), accessed May 28, 2011. Published by the Texas State Historical Association.
- City of Decatur - Official Website
- Decatur Chamber of Commerce
- Decatur Main Street
- Wise County on the Web
- Decatur ISD