The average household size was 2.27 and the average family size was 2.86. In the borough the population was spread out, with 22.3% under the age of 18, 8.1% from 18 to 24, 31.0% from 25 to 44, 20.4% from 45 to 64, and 18.2% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 86.6 males. For every 100 females age 18 and over, there were 82.4 males. The median income for a household in the borough was $32,286, and the median income for a family was $40,089. Males had a median income of $33,378 versus $20,784 for females. The per capita income for the borough was $20,158. About 1.4% of families and 6.0% of the population were below the poverty line, including 3.2% of those under age 18 and 6.5% of those age 65 or over. The borough is governed by seven locally elected Council Members and an elected mayor. The borough also has an eight-member, locally selected Planning Commission. It is one of 13 boroughs in Adams County. In December 2013, council raised residents' municipal property taxes by 16 percent to 3.6256 mills. The borough's 2013 tax millage of 3.1256 included 2.7715 for the regular budget. Since 2009 the fire protection tax was 0.3541 mills. Three, elected at large, Adams County Commissioners. In 2014, they are: Randy Phiel, Chairman; Jim Martin, Vice Chairman; and  Marty Karsteter Qually. Residents of McSherrystown may attend the local, public schools operated by Conewago Valley School District which provides full day kindergarten through 12th grade. In 2013, the Conewago Valley School District's enrollment declined to 3,936 students in kindergarten through 12th grade. In 2010, Conewago Valley School District enrollment was 4,024 pupils. Conewago Valley School District operates New Oxford High School (9th-12th), New Oxford Middle School (7th-8th), Conewago Valley Intermediate School (4th-6th), Conewago Township Elementary School (K-3rd) and New Oxford Elementary School (K-3rd). None of the District's schools are located in McSherrystown. In 2013, the Pittsburgh Business Times ranked Conewago Valley School District 310th out of 498 public schools for academic achievement of its pupils.