The age distribution, , in Thalheim is; 58 children or 7.8% of the population are between 0 and 9 years old and 100 teenagers or 13.5% are between 10 and 19. Of the adult population, 80 people or 10.8% of the population are between 20 and 29 years old. 68 people or 9.2% are between 30 and 39, 138 people or 18.7% are between 40 and 49, and 117 people or 15.8% are between 50 and 59. The senior population distribution is 92 people or 12.4% of the population are between 60 and 69 years old, 53 people or 7.2% are between 70 and 79, there are 30 people or 4.1% who are between 80 and 89,and there are 3 people or 0.4% who are 90 and older.