Gampaha is a noteworthy city in Gampaha District, Western Province, Sri Lanka. It is arranged toward the north-east of the capital Colombo. It is the 6th biggest urban zone in Western Province, after Colombo, Negombo, Kalutara, Panadura and Avissawella. Gampaha is additionally the second biggest urban focus in Gampaha area, after Negombo. As indicated by the certainties of focal record arranged by urban improvement specialist UDA, Gampaha creates around 95% in spite of the fact that the populace is not exactly in Negombo.
Gampaha has a land territory of 25.8 hectares and is home to the workplaces of 75 government organizations. Amid rule of Portuguese, the primary course to the slope nation had been laid through the Gampaha region and in the time of Dutch, this territory was filled in as community for the gathering of cinnamon.But before year 1815, it is said that Gampaha was a thick woods. The fifth Governor of Ceylon, Sir Edward Barnes made a visit to Gampaha in 1825, while in transit to watch the development work of the Negombo-Colombo principle street.
At the point when British manufactured the "Moragoda" catholic church in 1828, Gampaha and encompassing zones gradually wound up possessed. As the expansion of the railroad track from Colombo to Ambepussa, the Henarathgoda rail line station was finished in 1866 which went about as a key factor for the advancement and acknowledgment of the town. In 1867, the main elastic tree of Sri Lanka was planted in Henarathgoda greenhouse.