Brandt et al., 2014 suggest that about 100 elephants persist in this zone, but note an administrative source in 2013 gave an estimate of 120.
Source:Brandt, A. L., Hagos, Y., Yacob, Y., David, V. A., Georgiadis, N. J., Shoshani, J., & Roca, A. L. (2014). The elephants of Gash-Barka, Eritrea: nuclear and mitochondrial genetic patterns. Journal of Heredity, 105(1), 82–90. http://doi.org/10.1093/jhered/est078