Each year, historical estimates from the Local Area Unemployment Statistics (LAUS)
program are revised to reflect new population controls from the Census Bureau, updated input data, and
reestimation. The data for model-based areas also incorporate new seasonal adjustment, and the
unadjusted estimates are controlled to new census division and U.S. totals. Substate area
data subsequently are revised to incorporate updated inputs, reestimation, and controlling to new statewide totals.
On February 27, 2018, the LAUS program issued 2017 annual-average civilian labor force and unemployment estimates for
census regions and divisions; all states and the District of Columbia; the Los Angeles-Long Beach-Glendale, CA Metropolitan Division; the Miami-Miami Beach-Kendall,
FL Metropolitan Division; the Chicago-Naperville-Arlington Heights, IL Metropolitan Division; the Detroit-Warren-Dearborn,
MI Metropolitan Statistical Area; New York city, NY; the Cleveland-Elyria, OH Metropolitan Statistical Area; and the
Seattle-Bellevue-Everett, WA Metropolitan Division, as well as the seven corresponding balance-of-state areas. As described
above, the data incorporate new population controls, updated inputs, reestimation of models, and adjustment to new census division and national
control totals. Not-seasonally-adjusted monthly data for these areas were revised from January 2013 forward. At the same time,
new procedures for seasonally adjusting the data were implemented, resulting in revisions back to January 1976.
Statewide data for Puerto Rico (which are not model-based, but rather are tabulated from a household survey similar to the Current Population Survey for the U.S.)
were revised from January 2013 forward to incorporate new population controls.
On April 20, 2018, routine revisions were made to data from 2013 through 2017 for geographic areas below the state level
(other than the model-based areas noted above), and official annual averages for 2017 were issued. For all of these areas,
estimation inputs were revised back to 2016, while the revisions for 2013–15 consisted of, at minimum, controlling to the new
state totals described above. In addition, some states revised at least some of their estimation inputs for some of their areas
as far back as January 2010. For this reason, estimates for all non-modeled areas were footnoted as having been subject to
revision from January 2010 forward within the time-series database on April 20.
Last Modified Date: April 20, 2018