My city of Bloomington appears to have almost a third of the population living in poverty according to the US Census, but you'd have a tough time seeing that if you drove through.
What we have is a large university with almost half the population being college students.
>>markst+(OP)
Poverty is often defined as having an income less than 1/3 of the median. The median household income in the US is about $80,000 p/a, so poor would be about $26,000. You might well have a tough time seeing that from the outside.