The Berman Jewish DataBank report on the Jewish Population in the United States, 2014, written by Dr. Ira Sheskin and Dr. Arnold Dashefsky, derives from Chapter 17 of the 2014 American Jewish Year Book (of which the authors of the U.S. Jewish Population article are co-editors).
The authors review (carefully) a number of recent estimates of the United States Jewish population, noting that the 2014 AJYB estimate of 6,769,000 American Jews [6,768,980 precise in tables] is based on combining results from American Jewish community studies/estimates and is probably a slight over-representation of the U.S. Jewish population due to multiple factors identified in their discussion (such as mobility of Jews between communities studies in different years).
Sheskin and Dashefsky estimate that the U.S. population is probably between 6.6 and 6.7 million, similar to other estimates that they discuss.
ALL TABLES in the 2014 report utilize the 6,769,000 million estimate, which is based on (1) scientific estimates derived from random digit dialing and occasionally Distinctive Jewish Names [DJN] survey methodologies, (2) United States Census estimates of communities that are almost 100% Jewish, (3) Informant Estimates and (4) Internet Estimates. See "Part I: Population Estimation Methodology" for more information on estimation issues.
Table 1 (page 22 of the PDF available for downloading on the right side of this Overview page) provides state-by-state estimates of the number of Jews (plus the District of Columbia) and the percentage of each state's population that is Jewish.
Table 2 (page 24 PDF) reorganizes the data by Census Division and Census Region.
Table 3 (page 25 PDF) organizes the Jewish population estimates by the the top twenty MSAs (Metropolitan Statistical Areas) in the US.
Table 5 (page 29) summarizes U.S. Jewish population changes from 1971 to 2014 on a state-by-state basis, while Table 6 (page 34 PDF) organizes the 1971-2014 changes by Census geographic divisions and regions.
Part VII, "Atlas of American Jewish Communities," maps the Jewish population of the United States using state, city and regional perspectives (it begins on page 44 of the PDF)
Appendix A presents estimates on a micro-analysis basis for all U.S. communities with at least 100 estimated Jewish residents - it begins on page 61 of the report, page 75 of the PDF. Users who print the Appendix are cautioned not to print it twice.
The excel spreadsheet Appendix A is also available as a separate download;