A study was conducted to examine gender and age differences for factors related to life satisfaction levels in terms of the family, daily life-style, health, personal relationships, environment and life design. Data were collected from 1,320 healthy people aged 60 years or more in the community (665 males and 655 females). The main results obtained, using data with high reliability (a coefficient = 0.88), were as follows: Men had a higher satisfaction level for family and health factors than women. The satisfaction level for men aged under 75 was high and this trend was especially marked for the health factor in men and for all factors in women. The satisfaction level for women aged 75 or older was lower for all factors than that for men, and the trend was marked for health and personal relationships. Because gender and age differences in life satisfaction level vary from one factor to another, the satisfaction level should be evaluated accordingly.