19511 is a Postal Code in Berks County.
- 19511 a.k.a. Ostrya virginiana, is a species of Ostrya native to eastern North America, from Nova Scotia west to southern Manitoba and eastern Wyoming, southeast to northern Florida and southwest to eastern Texas. Populations from Mexico and Central America are also regarded as the same species, although some authors prefer to separate them as a distinct species, Ostrya guatemalensis. Other names include eastern hophornbeam, hardhack, ironwood, and leverwood.
- 19511 a.k.a. The Mike and Thomas Show is a Dutch television comedy panel game broadcast on Nederland 3. It is created and presented by the cabaret performers Mike Boddé and Thomas van Luyn.