The phrase "same demographic" means a group of people who have similar characteristics, such as age, gender, income, or education level. It refers to a specific category or group of individuals with shared traits. Full definition
The property prices appear to be very low relative to some of the other cities with same demographics. (biggerpockets.com)
Meanwhile, the Surface 4 and the Pixel C are targeting the exact same demographic. (goodereader.com)
It's similar to a charter school model, but unlike charter schools, which are often accused of «creaming» the best students from a district and opening few slots for special education students and English language learners, William Smith is required to serve the exact same demographic as the district. (priorityschools.org)