| Zip Code : | 77456 |
| City : | Markham |
| County : | Matagorda County |
| State : | Texas (TX) |
| Land Area : | 52.45 sq mi |
| Water Area : | 0.31 sq mi |
| Latitude : | 29.0400184 |
| Longitude : | -96.0608091 |
| Population (2010): | 1,303 |
| Population Estimate (2012) : | 1,179 |
| Population Density : | 24.84/sq mi |
| Housing Units (2012) : | 577 |
| Median Household Income (2012) : | $46,890 (Texas : $51,563, USA : $53,046) |
| Median Family Income (2012) : | $44,639 (Texas : $60,621, USA : $64,585) |
| Median House Price (2012) : | $76,300 (Texas : $128,000, USA : $181,400) |