, the population was 49.7% male and 50.3% female. The population was made up of 1,154 Swiss men (48.5% of the population) and 30 (1.3%) non-Swiss men. There were 1,181 Swiss women (49.6%) and 16 (0.7%) non-Swiss women. Of the population in the municipality, 931 or about 41.2% were born in Rüderswil and lived there in 2000. There were 983 or 43.5% who were born in the same canton, while 186 or 8.2% were born somewhere else in Switzerland, and 80 or 3.5% were born outside of Switzerland.