 This represents a population growth rate of 1.9%.The age distribution, , in Pfeffingen is; 123 children or 5.6% of the population are between 0 and 6 years old and 344 teenagers or 15.6% are between 7 and 19.Of the adult population, 202 people or 9.2% of the population are between 20 and 29 years old.