, the population was 49.9% male and 50.1% female. The population was made up of 311 Swiss men (49.6% of the population) and 2 (0.3%) non-Swiss men. There were 306 Swiss women (48.8%) and 8 (1.3%) non-Swiss women. Of the population in the municipality, 329 or about 50.2% were born in Landiswil and lived there in 2000. There were 257 or 39.2% who were born in the same canton, while 28 or 4.3% were born somewhere else in Switzerland, and 8 or 1.2% were born outside of Switzerland.