| Official Name: | Post Oak, Blanco County, Texas |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Texas#USA |
| Pushpin Label: | Post Oak |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Texas |
| Subdivision Type2: | County |
| Subdivision Name2: | Blanco |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1,467 |
| Coordinates: | 30.3036°N -98.5419°W |
| Area Code: | 830 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 2034987 |
Post Oak is an unincorporated community in Blanco County, in the U.S. state of Texas. According to the Handbook of Texas, the community had a population of 10 in 2000.
The area in what is known as Post Oak today was first settled by Pinkney Hickson circa 1874. He donated two acres of land on which to build a cemetery. Fifteen families lived in the community in 1958, with an official population of 10 in 2000.[1]
Post Oak is located at the intersection of Farm to Market Roads 1320 and 2721 near Post Oak Creek, 8miles northwest of Johnson City in western Blanco County.[1]
Pinkney Hickson donated a half-acre of land for a school to be built on. It joined the Johnson City Independent School District in the late 1930s.[1] The community continues to be served by Johnson City ISD today.