The Cincinnati SNA (Statistical Neighborhood Approximations) Boundary layer shows Cincinnati neighborhoods modified to closely "fit" the US Census 2010 Data & 2006-2010 American Community Survey five-year estimates. These boundaries are useful in that they can be correlated to US Census population data. The boundaries are redrawn every ten years following the Census.

Note: The Cincinnati SNA Boundaries are not the same as the Cincinnati Community Council Neighborhood Boundaries.