As of 2001 India census, Kalamassery had a population of 63,176. Sex ratio is 956 females per 1000 males. Kalamassery has an average literacy rate of 84%, which is well higher than the national average of 59.5%. Male literacy is 87%, and female literacy is 82%. In Kalamassery, 10% of the population is under 6 years of age.
The soils consists mainly of recent sediments (Alluvium, Teri’s, Brown sand etc.). Red colored sticky soil is also found in these areas. The climate is generally tropical, heavy rains from the southwest and northeast monsoon are common from June through September. The average annual rainfall is about 350 cm.
Museum of Kerala History has representations of 87 figures who shaped the history and culture of Kerala in the last two thousand years. The museum has a collection of 150 dolls, all hand-made and detailed, representing the cultural and ethnic diversity of India. The dolls represent young men and women from Gujarat to Nagaland and from Kashmir to Kanyakumari. The gallery depicts mainly specimens of Indian contemporary art (painting and sculpture) over a period of the last two hundred years. The gallery also displays a mural painting based on the classical Sanskrit drama Shakuntalam executed in the traditional Kerala. The mural, at 25 feet long and 5 feet wide, is one of the largest in Kerala.