Sentence examples for demographics are from inspiring English sources

The phrase "demographics are" is correct and commonly used in written English.
It is typically used when discussing a specific group of people and their statistical characteristics, such as age, gender, income, education level, etc. Example: "The company's marketing strategy was based on thorough research of the target audience's demographics. Through this, they were able to tailor their products and services to better meet the needs and preferences of their customers."