, the gender distribution of the population was 47.8% male and 52.2% female. The population was made up of 157 Swiss men (45.8% of the population) and 7 (2.0%) non-Swiss men. There were 172 Swiss women (50.1%) and 7 (2.0%) non-Swiss women. Of the population in the municipality 269 or about 70.4% were born in Eggerberg and lived there in 2000. There were 83 or 21.7% who were born in the same canton, while 16 or 4.2% were born somewhere else in Switzerland, and 5 or 1.3% were born outside of Switzerland. The age distribution of the population () is children and teenagers (0–19 years old) make up 27.5% of the population, while adults (20–64 years old) make up 58.1% and seniors (over 64 years old) make up 14.4%.