Dominic Mathenge, said to be HIV positive, reportedly enticed the girl with sweets before defiling her.
The girl's mother said she learned about it on Saturday and took her daughter to hospital where doctors found that she had been defiled several times.
"I was shocked when my daughter told me she has been defiled by Mathenge," the mother said.
Mwangi Mbogo, a village elder, said Mathenge is abusive and an alcoholic.
He said the suspect has been arrested several times and released.
Area OCPD Edward Wafula said Mathenge will be arraigned on Friday.
In a related incident, a man was arrested in Kitengela for raping the daughter of a woman he was cohabiting with.
The suspect, a mason in Kimalat area, is said to have threatened the victim with a knife during the incident.