Mount Ephraim is in the First Congressional District and is part of New Jersey's 5th Legislative District. New Jersey's First Congressional District, covering portions of Burlington County, Camden County and Gloucester County, is represented by Rob Andrews (D, Haddon Heights). New Jersey is represented in the Senate by Frank Lautenberg (D, Cliffside Park) and Bob Menendez (D, Hoboken).

For the 2008-2009 Legislative Session, the 5th district of the New Jersey Legislature is represented in the State Senate by Dana Redd (D, Camden) and in the Assembly by Nilsa Cruz-Perez (D, Barrington) and Joseph J. Roberts (D, Camden). The Governor of New Jersey is Jon Corzine (D, Hoboken).

Camden County is governed by a seven-member Board of Chosen Freeholders, elected at-large for staggered three-year terms by the residents of the county. As of 2007, Camden County's Freeholders are Freeholder Director Louis Cappelli, Jr. (term ends December 31, 2008), Freeholder Deputy Director Edward McDonnell (2007), Riletta L. Cream (2008), Rodney A. Greco (2009), Jeffrey L. Nash (2009), Joseph Ripa (2009) and Carmen Rodriguez (2007).

The Mount Ephraim Public Schools serve students in kindergarten through eighth grade. Schools in the district are Mary Bray School for grades K-3 and R.W. Kershaw School for grades 4-8.

For grades 9-12, public school students attend Audubon High School, in Audubon, as part of a sending/receiving relationship with the Audubon School District.

Mount Ephraim is served by two New Jersey Transit bus lines. Service to Philadelphia on the 400 route, with local service on the 457 route. Interstate 76 (providing access to Philadelphia and to Interstate 295) and U.S. Route 130 are both accessible across borough lines in Gloucester City.

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