|Motto: Where the Harvest Begins|
Location of Grandfield, Oklahoma
Grandfield is located at (34.230213, -98.687646).
According to the United States Census Bureau, the city has a total area of 0.8 square miles (2.1 km2), all of it land.
As of the census of 2000, there were 1,110 people, 434 households, and 295 families residing in the city. The population density was 1,387.9 people per square mile (535.7/km²). There were 534 housing units at an average density of 667.7 per square mile (257.7/km²). The racial makeup of the city was 71.98% White, 9.37% African American, 3.51% Native American, 0.18% Asian, 11.17% from other races, and 3.78% from two or more races. Hispanic or Latino of any race were 18.92% of the population.
There were 434 households out of which 31.6% had children under the age of 18 living with them, 53.0% weremarried couples living together, 10.8% had a female householder with no husband present, and 32.0% were non-families. 30.2% of all households were made up of individuals and 16.4% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.10.
In the city the population was spread out with 25.9% under the age of 18, 7.7% from 18 to 24, 24.1% from 25 to 44, 22.8% from 45 to 64, and 19.5% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 92.4 males. For every 100 females age 18 and over, there were 89.0 males.
The median income for a household in the city was $21,500, and the median income for a family was $27,222. Males had a median income of $23,281 versus $16,250 for females. The per capita income for the city was $13,823. About 20.7% of families and 26.7% of the population were below the poverty line, including 38.6% of those under age 18 and 10.8% of those age 65 or over.
Grandfield's historic places included the Grandfield Downtown Historic District (NR 02000656), the William and Mabel Donahoo Hubbard House (NR 91000310), the Humphreys Drugstore Building (NR 92000797), the Rock Island Depot Building (NR 96000978), and the Tillman County Bank of Grandfield (NR 92000796).