We can look this up empirically: https://ourworldindata.org/trust. It shows US is a medium-high trust society; lower than parts of Europe, and lower than China (assuming people answered honestly there!) but higher than most of Africa, South America and Asia.

> But that's not always true -- porch pirates are still a huge problem in cities, for example.

I mean, a huge problem in suburbs and more quiet rural areas too, where porch pirates might in theory stand out more, but also have a lot less through traffic to observe their efforts.