Kalthodu is a village in the Byndoor taluk of Udupi district.

T As of 2011, Kalthodu has a total population of 5172 people consisting of 2820 male and 539 female residents.

The village occupies a total area of 4212.71 hecatres with a population density of 1.228 people per hectare.

As of 2011, the total literacy rate was 66.57% which was higher than the national average of 59.5%.

[1] In 2022, a school girl was washed away by a swollen stream while crossing a wooden footbridge near Kalthodu which brought to light the lack of infrastructure in the village.