| Official Name: | Cumby, Texas |
| Settlement Type: | City |
| Mapsize: | 250px |
| Image Map1: | Hopkins County Cumby.svg |
| Mapsize1: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Texas |
| Subdivision Type2: | County |
| Subdivision Name2: | Hopkins |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.49 |
| Area Land Km2: | 2.49 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 0.96 |
| Area Land Sq Mi: | 0.96 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Total: | 679 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 646 |
| Coordinates: | 33.1353°N -95.8403°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 75433 |
| Area Code: | 903, 430 |
| Blank Name: | FIPS code |
| Blank Info: | 48-18128[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1333809 |
Cumby is a city in Hopkins County, Texas, United States. The population was 777 at the 2010 census,[3] up from 616 at the 2000 census. In 2020, its population was 679.
Originally known as Black Jack Grove as early as 1848, from 1857 to 1858 the post office was renamed to Theodocias. It was renamed again to Black Jack Grove before being renamed a final time to Cumby in 1896. It was named for Confederate army veteran Robert H. Cumby (1825-1881).
Cumby is located in western Hopkins County at 33.1353°N -95.8403°W (33.135235, –95.840141).[4] Interstate 30 runs through the south side of the city, with access from Exit 110. I-30 leads east to Sulphur Springs, the Hopkins county seat, and west to downtown Dallas.
According to the United States Census Bureau, the city has a total area of 2.6km2, of which 0.01sqkm, or 0.50%, are water.[3] The city sits on a watershed divide, with the north side draining towards the South Sulphur River, part of the Red River watershed, and the south side of the city draining towards Lake Fork Creek, part of the Sabine River watershed.
Cumby is part of the humid subtropical climate region.
| White (NH) | 604 | 88.95% | |
| Black or African American (NH) | 5 | 0.74% | |
| Native American or Alaska Native (NH) | 11 | 1.62% | |
| Asian (NH) | 1 | 0.15% | |
| Mixed/Multi-Racial (NH) | 26 | 3.83% | |
| Hispanic or Latino | 32 | 4.71% | |
| Total | 679 |
There were 262 households, out of which 26.7% had children under the age of 18 living with them, 52.7% were married couples living together, 10.3% had a female householder with no husband present, and 31.7% were non-families. 27.5% 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 2.35 and the average family size was 2.87.
In the city, the population was spread out, with 22.9% under the age of 18, 7.6% from 18 to 24, 29.2% from 25 to 44, 21.6% from 45 to 64, and 18.7% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 98.1 males. For every 100 females age 18 and over, there were 91.5 males.
The median income for a household in the city was $30,547, and the median income for a family was $34,091. Males had a median income of $25,833 versus $19,643 for females. The per capita income for the city was $15,228. About 7.0% of families and 11.9% of the population were below the poverty line, including 9.6% of those under age 18 and 15.9% of those age 65 or over.
The city is served by the Cumby Collegiate Independent School District.