Markham is a census-designated place (CDP) in Matagorda County, Texas, United States.<br> 1850–1900 1910<br> 1920 1930 1940<br>
1950 1960 1970<br> 1980 1990 2000<br> 2010 2020
!Pop 2010
!
!% 2000
!% 2010
!
|-
|White alone (NH)
|605
|548
|style='background: #ffffe6; |459
|53.16%
|50.65%
|style='background: #ffffe6; |50.55%
|-
|Black or African American alone (NH)
|113
|130
|style='background: #ffffe6; |63
|9.93%
|12.01%
|style='background: #ffffe6; |6.94%
|-
|Native American or Alaska Native alone (NH)
|0
|2
|style='background: #ffffe6; |4
|0.00%
|0.18%
|style='background: #ffffe6; |0.44%
|-
|Asian alone (NH)
|1
|0
|style='background: #ffffe6; |0
|0.09%
|0.00%
|style='background: #ffffe6; |0.00%
|-
|Native Hawaiian or Pacific Islander alone (NH)
|0
|1
|style='background: #ffffe6; |0
|0.00%
|0.09%
|style='background: #ffffe6; |0.00%
|-
|Other race alone (NH)
|0
|0
|style='background: #ffffe6; |5
|0.00%
|0.00%
|style='background: #ffffe6; |0.55%
|-
|Mixed race or Multiracial (NH)
|9
|23
|style='background: #ffffe6; |33
|0.79%
|2.13%
|style='background: #ffffe6; |3.63%
|-
|Hispanic or Latino (any race)
|410
|378
|style='background: #ffffe6; |344
|36.03%
|34.94%
|style='background: #ffffe6; |37.89%
|-
|Total
|1,138
|1,082
|style='background: #ffffe6; |908
|100.00%
|100.00%
|style='background: #ffffe6; |100.00%
|}
2000 census
As of the census