I just took a course and was learning about market research, like looking at population per capita in an area and average income, among other things, and comparing those factors in one community where there may be a property you are interested it to another community.

Lots of companies building out here like Amazon, Honda, Google, Meta, etc. which drives population growth and job growth.

See the chart from Fair Isaac Company (FICO) below: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyAccording to this chart, investors should use corresponding vacancy+tenant-nonperformance factors of approximately 5% for Class A rentals, 10% for Class B and 20% for Class C.To address Class C payment challenges, many industry "experts" are now selling programs to newbie investors about how Section 8 tenants are the cure.

Most investors are looking for an area that Landlord laws are favorable, and  the economy is growing and the population is growing.  

@Monica GonzalezInvest in Southern California's B-/C+ areas for appreciation and cash flow, focusing on job growth, population growth, and proximity to amenities.

Check out local job stats and major employers.Population Trends: Areas with growing populations often see rising property values.

Additionally, is there increasing population or decreating population.

Primary targets are located in cities (100k+) with positive population growth over the past five years; possessing easily identifiable macroeconomics. 

The macroeconomics here is rapidly growing - lots of population growth and job growth especially with the many companies moving and developing out here like Intel, Honda, Amazon, Google, Meta, etc.

Anything you buy in Columbus will appreciate like crazy because of great macroeconomics - there's population growth, job growth, and companies like Intel, Google, Amazon, etc. moving and developing here.