Scientifically sunset is not inner city due to lack of multi story buildings.
Culturally, inner city is an connotation of impoverished black city neighborhood. Maybe Oakand is inner than SF now. SF is post gentrification already.
Seems that inner city has a racist tone in US. We need to find a better word.
"The inner city is the central area of a major city or metropolis. Inner city areas tend to have higher population densities than outer suburbs, with more of the population living inside multi-floored townhouses and apartment buildings.
In the United States and United Kingdom, the term “inner city” is often used as a euphemism for lower-income residential districts in the city centre and nearby areas with, in the US, the additional connotation of impoverished black neighborhoods. Sociologists sometimes turn this euphemism into a formal designation, applying the term “inner city” to such residential areas, rather than to geographically more central commercial districts. However, some inner city areas of American cities have undergone gentrification, especially since the 1990s."