I used to work in statistical data collection/analysis for the US Department of Commerce (Bureau of the Census). I also used to work in the gaming industry (statistical analysis).
The science of human statistics is called "demographics". I do not believe that there is any statistical correlation between the decline of membership in the Masonic fraternity, to the general decline in "morality" in our society. The term is "causative factor".
Nevertheless, Masonic membership is definetly declining. Here are the statistics for 2012-2013 (The latest year that data is available).
U.S. Grand Lodges Membership
STATE 2012 MEMBERSHIP 2013 MEMBERSHIP GAIN/(LOSS)
ALABAMA 27,654 25,885 (1,769)
ALASKA 1,820 1,797 (23)
ARIZONA 8,000 7,812 (188)
ARKANSAS 13,042 12,301 (741)
CALIFORNIA 63,546 55,893 (7,653)
COLORADO 8,885 9,311 426
CONNECTICUT 11,778 10,576 (1,202)
DELAWARE 4,910 4,843 (67)
DISTRICT OF COLUMBIA 4,438 4,091 (347)
FLORIDA 42,959 41,134 (1,825)
GEORGIA 41,255 40,750 (505)
HAWAII 1,778 1,787 9
IDAHO* 3,670 3,567 (103)
ILLINOIS 65,781 64,705 (1,076)
INDIANA 60,449 58,363 (2,086)
IOWA 20,203 19,338 (865)
KANSAS 21,225 20,176 (1,049)
KENTUCKY 43,658 42,019 (1,639)
LOUISIANA 20,404 19,431 (973)
MAINE 19,860 18,573 (1,287)
MARYLAND 16,146 15,429 (717)
MASSACHUSETTS 33,048 30,861 (2,187)
MICHIGAN 34,686 32,997 (1,689)
MINNESOTA 13,587 13,062 (525)
MISSISSIPPI 18,063 17,565 (498)
MISSOURI 45,850 42,274 (3,576)
MONTANA* 5,565 5,401 (164)
NEBRASKA 11,895 11,405 (490)
NEVADA 4,163 4,085 (78)
NEW HAMPSHIRE* 6,497 6,097 (400)
NEW JERSEY 22,523 22,514 (9)
NEW MEXICO 5,389 4,669 (720)
NEW YORK 42,669 41,305 (1,364)
NORTH CAROLINA 43,112 42,296 (816)
NORTH DAKOTA 2,876 2,885 9
OHIO 94,867 91,040 (3,827)
OKLAHOMA 23,842 22,622 (1,220)
OREGON 8,946 8,648 (298)
PENNSYLVANIA 108,758 107,731 (1,027)
RHODE ISLAND 3,573 3,444 (129)
SOUTH CAROLINA* 37,810 36,689 (1,121)
SOUTH DAKOTA* 5,471 5,654 183
TENNESSEE* 40,926 39,943 (983)
TEXAS 93,188 81,340 (11,848)
UTAH 2,057 2,081 24
VERMONT 5,855 5,708 (147)
VIRGINIA 37,177 36,335 (842)
WASHINGTON 15,450 14,774 (676)
WEST VIRGINIA 20,808 20,251 (557)
WISCONSIN 11,742 11,367 (375)
WYOMING 3,579 3,417 (162)
TOTALS 1,305,433 1,246,241 (59,192)
*Revised 2012 figures===================
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These data are provided by the various Grand Lodges to the Masonic Service association. The methodology of collection by the various Grand Lodges is uneven, and not uniform across the entire USA. Nevertheless, the picture is bleak. Only about three Grand Lodges report an increase. Hawaii saw a net gain of 9 Masons.
Of course some individual lodges are growing, no doubt. But the national trend is (for me) very scary. As the number of Masons declines, the number of lodges will follow the decline (Two lodges that I belonged to in the past have been forced to consolidate). And there are many states where men belong to multiple lodges. When these multiple members are deceased, the loss is felt in all of the lodges that they belonged to.
What are masons/lodges/Grand Lodges doing to reverse the trend? I must say, in all candor, that I am unimpressed and disappointed in what I have seen. Far too many masons are not even convinced that there is a problem!!!
Can the trend be reversed? I believe so. If 21st Century Masonry could appeal to 21st Century men, then we could get this craft back to growing again.