Is there a difference between Changsha and Ningxiang in buying social security?

No, Ningxiang belongs to a county-level city in Changsha. Social security is a provincial-level overall plan in Hunan Province, and social security in Hunan Province is a unified standard, so there is no difference. Every year, the Bureau of Statistics and the Department of Human Resources and Social Security jointly announce the payment base and payment ratio of social security. Hunan Province pays according to this standard, so there is no difference between Changsha Social Security and Ningxiang Social Security, including the standard for calculating pensions in the future.