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What are these buildings? Are they discount grocers, with cheap but OK food, or are they gas stations, with lunchables and frozen pizzas? It's hard to tell from a screenshot of a map.

I'm not denying that the term "food desert" is suspect, I just can't tell what you're trying to prove.

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Based on street view (and my limited knowledge of Camden based on living across the Delaware River in Philadelphia) these are all corner stores and bodegas that in some cases may have some limited fresh food, but most of the sales volume is likely packaged goods.

The idea of a "food desert" as I understand it is that it's an area with limited access to nutritious foods. Most of Camden definitely qualifies, especially for residents without cars.

They're Food-and-Liquors. You can buy milk and eggs there.

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