A trend of declining enrollment in the Hood River County School District is continuing in the early weeks of September.  Interim Superintendent Bill Newton says as of Tuesday, the district has 3,804 students, down 46 from last year.  He says once again the reduction is at the lower grades.  He notes the difference between enrollment from kindergarten to second grade and tenth to twelfth grade is about 300 students.  Newton says the district last spring did not fill seven teaching positions this year that were open to begin to adjust staffing levels for the student decrease.  He adds along with the high cost of housing being a factor in the enrollment dip, birth rates in the state have also gone down, leading to enrollment drops in many districts.