How have the number of intentional communities (raw number, total members etc) fluctuated over time? Is it growing? Was there a big jump in the 60s?

Also questions like changes in the type of community etc.

People regulary suggest intentional communities took off in 60s e.g.

I shall be especially interested in those intentional communities in which this is at a minimum (as it usually is in the 'secular family commune' - the dominant form in the wave of commune activity which began in the 1960s and is still continuing) and in comparing such communities with the lutopian communities' which flourished especially in America and England in the nineteenth century and which were more politically centralised, with a religious or political ideology and a strong charismatic leadership [@taylor-1982-community-anarchy-and-liberty:p.37]

Obvious material is [@oved-??-american-communes] (have a WIP extraction of the listing at the end of that book]

Quick google search does not turn up a database though there are pieces like this one:

• https://www.jstor.org/stable/40969074?seq=1

  Intentional communities are potential solutions to the problem of the loss or decline of community experienced by modern society. This paper discusses the trends regarding intentional communities from 1990-2000. The discussion focuses primarily on intentional communities in the United States (because they constitute the vast majority of intentional communities), but communities outside the United States are also included in the discussion. The Directory of Intentional Communities: A Guide to Cooperative Living (1990/1991), Communities Directory: A Guide to Cooperative Living (1995), and Communities Directory: A Guide to Intentional Communities and Cooperative Living (2000) are examined in order to create a portrait of contemporary intentional communities.

• Utopian Struggle: Preconceptions and Realities of Intentional Communities (2012) https://www.jstor.org/stable/26240431 (open access)