If you're in a high performing district, it is not a stretch to assume that the distribution is shifted up about ten points. When you do this, about 15% of the local population is at the 96th percentile or above.
Until recently WA has defined the top 2.314% as "highly capable" and provided funding to districts as though that number of students are being identified. This means that districts use local rather than national norms to identify students. In my district, this means that only about 7 students per grade are identified even though about 10% of students (30 per grade) are actually gifted (IQ ≥ 130). (Apparently this past summer the percentage funded was increased to the top 5%.)
