What iq does my child have to have in order to have a learning disability?

Not defined by IQ: The concept of a learning disability implies a child has an IQ in a normal range but has a decreased ability to handle a specified learning process compaired to age equivalent kids. This can be weakness in reading, math, memory for sequences, etc.. Individualized test can detect strengths & weaknesses and are the starting point for deciding how to help them. Low IQ implies weakness in everything.

Average to above avg: Learning disabilities are defined as unexpected difficulties learning in a child with an average to above average iq. A significant discrepancy between iq & achievement scores on standardized tests used to determine eligilibility for "special ed." now it is determined by a student's lack of adequate "response to intervention" when educational help is provided over a specific time.

IQ Disability: The iq test is the cornerstone of any psychological test battery. Depending on how the psychologist diagnoses learning disorders, usually we look for discrepancies between iq and academic abilities (iq > academics) in order to start thinking about whether a learning disability exists. There is no "cookbook" recipe for doing so.

Not related: IQ and learning disabilities are not related. Learning disability refers to a lack of a specific skill. While the subtests of standardized IQ tests such as the WISC-IV may be low and consistent with a particular learning disability, all of the subtests may be in the average range and a child may still have a disability related to reading, math, executive function etc.