ELCA stats (from Wikipedia):
Congregations 10,008 (2010) - but nearly 600 congregations have left ELCA since 8/2009… that’s almost 5 a week.
Members 4,059,785 Baptized (2011)
3,444,021 Confirmed (2009)
LCMS stats (also from Wikipedia):
Congregations 6,158
Members 2,278,586 Baptized
1,764,024 Confirmed
WELS stats (from their own web site):
Congregations 1,278
Members 380,728 Baptized
300,665 Confirmed
Lutheran Churches in Mission for Christ (officially formed in 2001)
Congregations 808
Members The LCMC web site is silent in this regard, but at the WELS average of almost 300 baptized members per congregation that would be 242,000+ members, and at the ELCA average of just over 400 baptized members per congregation that would be 323,000+ members. Most of the LCMC’s growth has come at the expense of the ELCA.
North American Lutheran Church (officially formed in 2010)
Congregations 356
Members 135,000
It’s also likely that additional thousands of ELCA congregants quietly left their liberal congregations without a word, in typical Lutheran humility, but are still being counted as members on the rolls. I would expect the LCMC and NALC (and to a lesser extent LCMS) to continue reporting growth, and the ELCA to continue reporting the opposite.