*This question was phrased by the source as follows: "Quel âge aviez-vous la première fois que vous avez eu des relations sexuelles ?" which translates as "How old were you the first time you had sexual intercourse?"
2,008 respondents were from Flanders, 1,856 from Wallonia, and 1,210 from the Brussels-Capital Region.
Citation formats
Share of people in Belgium who had sex before the age of 15 2018, by region
The share of Belgians aged 15 to 64 who had sexual intercourse before the age of ** was estimated to be around five percent in 2018. The precocity of sexual relations is linked to risky sexual behaviors who can favor the risk of STDs and unplanned pregnancies. From a regional perspective, the precocity of sexual relations was higher in Wallonia than in Flanders or the Brussels-Capital Region.
In 2018, under five percent of people had sex before the age of ** in Flanders. Earliness of sexual intercourse was, therefore, at its lowest in this region of Belgium.
Profit from the additional features of your individual account
Currently, you are using a shared account. To use individual functions (e.g., mark statistics as favourites, set
statistic alerts) please log in with your personal account.
If you are an admin, please authenticate by logging in again.
Learn more about how ÌÇÐÄÆƽâ°æ can support your business.
Sciensano. (October 1, 2019). Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by region* [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/1086282/share-sexual-intercourse-before-age-fifteen-belgium-by-region/
Sciensano. "Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by region*." Chart. October 1, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/1086282/share-sexual-intercourse-before-age-fifteen-belgium-by-region/
Sciensano. (2019). Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by region*. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/1086282/share-sexual-intercourse-before-age-fifteen-belgium-by-region/
Sciensano. "Share of Population in Belgium Who Had Their First Sexual Intercourse before The Age of 15 in 2018, by Region*." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Oct 2019, /statistics/1086282/share-sexual-intercourse-before-age-fifteen-belgium-by-region/
Sciensano, Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by region* ÌÇÐÄÆƽâ°æ, /statistics/1086282/share-sexual-intercourse-before-age-fifteen-belgium-by-region/ (last visited July 31, 2026)
Share of population in Belgium who had their first sexual intercourse before the age of 15 in 2018, by region* [Graph], Sciensano, October 1, 2019. [Online]. Available: /statistics/1086282/share-sexual-intercourse-before-age-fifteen-belgium-by-region/
