Objective: Our aim was to describe the reliance on female permanent contraception among women with demand for family planning satisfied with modern methods (mDFPS) in low- and middle-income countries (LMICs) and to describe socio-economic and demographic patterns of permanent contraception in countries with high use.Study Design: Using data from the latest national health survey carried out in LMICs, we estimated mDFPS and the share of each contraceptive method used. Countries with a share of more than 25% of female permanent contraception were further explored for differences by wealth, number of living children, woman's age, and by the intersection of woman's age and number of living children.Results: In the 20 countries studied, between 6% and 94% of the contracepting population used modern methods. Female permanent contraception accounted for more than half of women using modern contraceptives in India, Dominican Republic, El Salvador, Mexico, and Colombia. In India and Tonga, more than 20% of women using contraceptives with fewer than 2 living children were using female permanent contraception. Among women with 2 living children, countries with the highest reliance on permanent contraception were India (79%), El Salvador (61%), Cuba (55%), Colombia (52%), and Thailand (51%). Dominican Republic, El Salvador, India, and Mexico presented high levels of permanent contraception among younger women, with reliance higher than 30% among women aged 25 to 29 and 50% or more among women aged 30 to 34.Conclusions: Reliance on permanent contraception was high in several countries and among women aged less than 35 years.Implications: Our results may help policymakers and health managers improve family planning services in low- and middle-income settings. We identified high use of female permanent contraception among modern contraceptive users in several countries, even among young women with fewer children. [ABSTRACT FROM AUTHOR]