"Currently exists: No" in Texas Almanac [1]. Do note, however, that this seems to refer to its existence as an *independent* entity, not necessarily as a neighborhood.

[1] "Gilburg", in Texas Almanac, Texas State Historical Association, accessed 27 Oct. 2025, <https://www.texasalmanac.com/places/gilburg>, archived from the original on 29 May 2024, <https://web.archive.org/web/20240529220615/https://www.texasalmanac.com/places/gilburg>.