Ozzy wrote:I get it that they are based on standardized GEO codes in global positioning systems
Not at all. YOU define what the codes mean. Whatever works for your unit. Depending on how large your ward is, it might represent a building (for a BYU student ward), a street, a block, a zip code, a town, etc. You could even use a "map square" system based on what square on the map a address is located. Whatever break down makes sense to you.
Note that Geo codes are for grouping people together - that is the same family in the same area (as defined by you) will have the same code. This is so you can run reports on those areas. Attempting to use Geo codes to identify a unique location (like a GPS coordinate) doesn't work well when it comes time to do reports.
I'm not sure what others use Geo codes for, but one of the most common usages is for re-drawing ward boundaries. By entering the codes, you can run reports based on different proposed boundary lines to see what the results would be. When the split finally happens, you use the codes to define which families get moved out to which ward and which ones stay.
May I ask what purpose you have in mind for Geo codes? That will drive what coding system you decide on. If you have no need for grouping members by location, then Geo codes will not be of any benefit to you.
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