Census Bureau - Quarterly Residential Vacancies and Homeownership statistics The bottom line is though, you will always have a pool of renters to rent to.  

Start with the MSA statistics then work your way to neighborhood stats.

Personally and from the crime statistics, I would say they are getting worse.  

Also, statistics for Conshy usually include all of 19428 zip code which includes parts of Plymouth Township. 

One word of caution ... statistically speaking, buildings with more than 5 units and less than 20 units have the highest default rate in the industry.

Here is a link on STRs statistics for the area:https://blog.evolvevacationrental.com/2018-vacation-rental-performance-report-gulf-shores-orange-beach/

Meanwhile, 14% of their parents took out an average of $35,600 in federal Parent PLUS loans.You’ve probably heard another scary statistic: Americans owe over $1.56 trillion in student loan debt, spread out among about 45 million borrowers"

The more important statistic is the that of the total number of new residents, no matter where they are from. 

I don't know about that particular market, but I do want to mention an issue with relying on crime statistics.

Knowledge is power and may allow you to pay a higher price for something than someone else because you know it will have a higher gain than statistics can show.