You may be a prepper and want to get your own community/neighborhood together but where do you start? The fact is that strength lies in numbers and each individual will more than likely have something unique they can bring to the table.
The first thing that may come to mind when considering this is keeping your own preps a secret which should indeed be your first priority. There are ways to get your community involved without giving yourself away at first.

Get to know your neighbors, strike up a conversation when they are working outside, bring them a jar of jelly or even go so far as to hold a block party. The more you talk with them the more you can learn, do they have skills such as maintaining a garden and/or canning?, are they innovative or handy with tools?, can anyone sew?. Look for traits that will be helpful to a prepper community. Even if you do not have the time or resources to head something up there may be someone else who can. Also beware of those who claim to be preppers but may consider "prepping" a few cans of peanut butter in their basement.

Once you have a good idea of who is interested you or someone else might want to initiate weekly or monthly meetings to discuss what to do in a disaster situation. Things like how everyone can keep the neighborhood safe, long term survival (which is where everyone's unique abilities will come in to play), resources for supplies and good deals on items, an contingency plan for bugging out to an alternate location if neccesary, and so on and so forth.

You may not feel safe reaching out to your neighbors but there are still things that you can do. Find a prepper group in your area that meets somewhere such as a restaurant. With some of these groups you need not disclose your full name or your location but it is a great place to exchange information and ideas.

If the area where you live would not make a viable prepper community you may want to get together with some trusted neighbors,friends or family members and find a location that suits your needs. Granted this will take time because there will be a large money factor involved but the important thing is working towards it.
Some things to consider when searching for an alternate bug out location are: distance, rural area, usable acreage, climate, ability to secure, soil for growing, water source, and grazing for animals.

Being part of a prepper community does not necessarily mean that members have to set it up like a commune where everyone would be forced to share what they have. Everyone should agree on how it is to be set up and run. How well it works will depend on the people involved, how much everyone is willing to contribute (whether it be money, skills, etc), how well everyone is willing to follow rules and goals set forth by the community, and so on.