19:30 08/24/2024 The shocking reality of changes in childbirth age in Gangnam-gu 0 (0) The average childbirth age of mothers in Gangnam-gu is 35 years old. How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.