Richard:
I agree with your approach. I am in a county of 30,000 people miles from anywhere else. The populated area is two to five miles wide and thirty five miles long. So the "down town" areas of the incorporated towns with their horses, cows & chickens on the front lawn of city hall, with grocery and other stores that are the shopping center for over 100 mile radius is "urban" in my reports. The unicorporated villages and the residential areas are suburban. Also, the main employment, whether they live in down town Safford or outside the village of Ft Thomsas is the copper mine 50 to 75 miles east. If they don't work in the copper mine, they work in the gas stations, stores, cafes in the cities and towns. That is the urban/suburban atmosphere for my two counties. Even the ones that have the 75 mile commute, get to work faster, easier and with less stress than the residents of Phoenix five miles from their employment. After all some people like country music (the entire state has shut down for four days because of Country Thunder in Apache Junction) and some people like opera--and they live next door to each other. Yes, I wish Fannie Mae would remove that item to be checked from their forms. What they are concerned about is if the property is capable of producing agricultural income (drugs of choice don't count). Fannie Mae finances residential property and that is what I am appraising. Farmer Mac finances large parcels that are not currently is use or capable of producing an agricultural based income. For example, one hundred acres with eighteen miles of private road access, without any irrigation rights or grazing permits on state or federal land (a pending sale for two years until they can find a lender and obtain easements from the state and federal government). That could even be considered suburban, it is across the river from a populated area--problem is the bridge washed out, when the river is low they have half mile to a paved county road. Anyway, there is not a blanket explanation for rural versus suburban--it all depends on the subjects area. What is urban/suburbs in SE Arizona would be untamed wilderness in NY. By the way zoning is one residence per acre in one county, one residence per 36 acres in the other. But there are 5,000 square foot or larger lots all over the place, because nobody cares, and for $75 you just get a zoning variance. No building codes either.