Where to find operating costs? [San Diego, CA]

[J Adams]

I am all read up on how to calculate a deal, but what I cannot nail down is where to find operating cost numbers. I tried to called SDG&E, my local gas and electric company, to see if they have a map on the varying usages across the county. I reasoned that if on my statements they show me how my usage compares to that of my neighbors I could get the same information for all the neighbors! Sadly after much phone tag I cannot find this information. They said I could ask for each individual neighborhood, but that would take forever. Went to the county clerks office to inquire, but again to no avail. I tried the same thing with water just shy of calling. I found the rates online and an average for the county as a whole, but it isn't broken down into the different usage types--industrial vs. SFR.

The next step would where to find property tax numbers. I know I have seen them on Zillow, but all the books and investors say this isn't a reliable source so I am reluctant to use anything from these sites. However I am having a tough go of real estate agents responding back to me because of my age so MLS access is looking dim unless I finish my license work.

How do I find these numbers?