Understanding the heterogeneity in regional-level mortality experience is of fundamental importance. This paper analyzes the state-level mortality rates for 50 U.S. states as well as the District of Columbia at age 80 and above via a novel forecast reconciliation approach. Based on mortality data from 1990–2017, we project the 10-year-ahead mortality rates at national and state levels up to 2027. We find that the geographical heterogeneity in the old-age mortality experience is likely to continue and the mortality improvement rates will to slow in the next decade.