Gelligaer population
Gelligaer has a population of 17,376, making it the 3rd largest place in Caerphilly County Borough. In 2005 the World Gazetteer recorded 17,376, a rise of 0.0% since.
The 2005 figure is from the World Gazetteer archive and may draw its boundary differently from the current source, so treat the change as indicative. Sources: method.