This Morris County district, with relatively high average income levels and low percentages of racial and ethnic minorities, has Republicans holding approximately a two-to-one margin in voter registration. Morris County was ranked as having the third highest median household income in the country in 2000 by the US Census Bureau, led by Mendham Township and Mountain Lakes. Nonetheless, the municipalities of Dover, Victory Gardens, Wharton and Mine Hill have average incomes substantially below the state average. While the district as a whole ranks below the state average in the percentage of racial and ethnic minorities, the Town of Dover has nearly 60 percent of its residents of Hispanic heritage--the ninth highest proportion of all New Jersey municipalities. Randolph Township, with 24,847 residents, and Morris Township, with 21,796, are the largest municipalities in population in the 2000 US Census, and both have about two-to-one margins of Republicans over Democrats in registered voters, usually producing Republican turnouts that exceed the comparable margins of Democratic strongholds in Morristown and Dover. The district has experienced rapid development, and ranked sixth of the 40 districts in its percentage population growth from the 1990 to 2000 U.S. Census. Although most municipalities have had sharp increases in property values, residents have objected to the surge in property taxes.

The district legislative delegation is comprised of three Republicans. Incumbent Senator Anthony Bucco was re-elected in 2003, defeating Democrat Blair MacInnes in one of the most expensive and hotly contested races in the 2003 election. In a bitter 1997 race, Senator Bucco defeated the husband of Mrs. MacInnes, former state Senator Gordon MacInnes. Senator Bucco, a former mayor of Boonton and former Morris County freeholder, also served a single term in the Assembly prior to his 1997 election to the Senate. He is joined in Trenton by Assemblymen Richard Merkt, an Assembly member since 1998 and a lawyer and corporate counsel of Transistor Devices, Inc., and Michael Patrick Carroll, an Assemblyman since 1996 and an attorney in private practice.

In 2007, Senator Bucco is opposed for re-election by Democrat Frank X. Herbert of Rockaway, who served in the State Senate from 1978 to 1982 when he resided in Bergen County. Herbert also was a Bergen County freeholder and in 1994 ran unsuccessfully against Rodney Frelinghuysen for Congress. While in the Senate, Herbert was a key sponsor of the legislation that created New Jersey Transit. Assemblymen Merkt and Carroll, who in 2005 withstood challenges for re-nomination from Morris County Freeholder Douglas Cabana and former Freeholder Peter J. O'Hagan, did not have primary opponents in 2007. In the November general election, they will face Democrats Dana Wefer of Lake Hopatcong, who has previously lost two prior elections for Morris County freeholder, and Marshall Gates, who served on the Roxbury Township Council from 1990-2003.

While much of the 25^th district features largely residential communities, the district and its neighboring region also is home to upscale office developments, corporate headquarters and research and development laboratories. Leading employers located within or just outside the district include AT&T; Lucent Technologies; and Verizon Communications; cutbacks and consolidations in the telecommunications industry, including AT&T’s sale to the former SBC Communications, have had significant adverse employment impacts affecting many district residents. Other leading private employers in the area include Kraft Foods, the parent of its Nabisco unit; Honeywell International, with its global headquarters in Morris Township, and Exxon Mobil, which operates one of its global research centers in Clinton Township in neighboring Hunterdon County. Major pharmaceutical companies also are substantial job generators for district residents; Novartis Pharmaceuticals and Pfizer are currently expanding existing office and research complexes, with Novartis expected to become Morris County’s leading private employer with 6,500 jobs—3,000 higher than its current employment in the County--when it completes a five-year project expanding its U.S headquarters in East Hanover commenced in July 2005. The district economy also relies heavily on the 3,000 jobs based at the 6,500-acre U.S. Army Picatinny Arsenal at Dover, first established in 1879 and now the Army's principal research, development and engineering facility for assigned weapon systems. Despite concerns by local public officials and residents over the Arsenal’s future, the facility escaped inclusion on the Defense Department’s most recent list of proposed facility closures released in 2005, and indeed may grow as a result of the consolidation of other military weapons programs at other facilities at Picatinny. Major health care facilities in the district include Morristown Memorial Hospital and Saint Clare's Hospital, with separate facilities in Boonton Township and Denville.

Historic sites within the district include the Morris Canal, which began operating from Dover to Newark in 1831 and by 1832 linked Newark to Easton, Pennsylvania, and facilitated shipment of anthracite coal from Pennsylvania to New Jersey, thus strengthening the iron industry that relied on the high-grade coal for its smelting furnaces while also allowing New Jersey iron ore to be shipped to anthracite iron furnaces of the Lehigh Valley and upper Bucks County. See Morris Canal, National Canal Museum; Morris Canal, New Jersey's Great Northwest Skylands; About Rockaway Township, Rockaway Township. The area also was one of the central crossroads of the Revolutionary War; George Washington’s headquarters in Morristown, where Washington and his army spent two critical winters of the Revolutionary War in 1777 and 1779–80, today is operated by the National Park Service as part of the Morristown National Historical Park.