These statistics offer a snapshot of the residents who live in the northwest quadrant of Butler County. They are averages for the region based on the 2000 Census.

The communities include the boroughs of Harrisville, Portersville, Slippery Rock, and West Liberty and the townships of Brady, Cherry, Clay, Franklin, Marion, Mercer, Muddy Creek and Slippery Rock.

<B>Total Population: </B>24,565<B>Total Households: </B>8,472<B>Household size: </B>2.90 people<B>Average household income: </B>$34,425<B>Per-capita income : </B>$14,245<B>Families with poverty income: </B>17.7%<B>Average house value: </B>$90,639<I>$4,161 below the state average</I><B>Houses with mortgages: </B>61.8%