Age and regional differences in English Vocabulary scores are examined. The ages studied range from fourteen years through adulthood. The regions identified are Northeast, Southeast, Midwest, West, and Southwest. Scores were found to increase from age fourteen through the twenties, leveling off in the early thirties. The highest average increase was in the Northeast followed by Southeast, Midwest, West and Southwest. The statistical difference between the Northeast and Southwest was one third of a standard deviation. During the 1979-81 period, changes in vocabulary level have varied for different age groups and regions. The largest decline in four of the regions has been for examinees in their twenties. This population is weak in vocabulary skills when compared with other groups. If this interpretation is correct, a "dip" in curves should advance to older ages. Vocabulary levels have increased for teenage examinees in Northeast, Southeast and Midwest regions. This may be a result of increased attention to verbal skills in response to an observed decline in standardized test scores. The results suggest inter-regional differences in vocabulary level are increasing. The teenage vocabulary scores in the West and Southwest are declining. (Author/DWH)