City Data shows an average income of $31K but the census tracts right around it on all sides are slightly higer.

Of course depending on the house if your building just tract type 1500 to 3000 sq ft basic designs and not custom build jobs that take year.. the 14k is all I would personally pay

And there is lots of vacant land that can be subdivided with new housing tracts for retirees a la Tucson once Pueblo West fills up.Crucially, the school district is bad and not improving.

@Beatrice ChisThe cities with highest cash flow will be places like Detroit or Flint.The map below shows rent to price ratios for census tracts in Detroit. 

I have properties in Chambersburg and the Lalor Tract, and it's not there ;)

The other cities seemed too far away to be ideal for Zion to be the only draw.If you are feeling ambitious, there was a tract of undeveloped land coming into Springdale, 12 acres zoned for roadside resort if I remember the wording correctly.

I prefer to look at the census tract level (and sometimes block level) as zip codes can be too large of an area to understand a sub-neighborhood's chance of success.  

@Robin Frazier It’s going to depend on several things site related such as the reviewing agencies with authority (I.e City of Houston versus Waller County), availability of existing utilities, detention/drainage criteria, floodplain status of the tract, and level of traffic impact analysis needed (if any).

The value of what I paid into them gets you a 3/1.5 tract home in Pleasanton.

You dig out the old plat... see that in fact that 5 acre tract has a shadow plat under it. take it over to the title co. and the planning depart. get lot confirmations and for not much money you have 50 legal lots of record and off you go..