Map - Lakewood, New Jersey (Township of Lakewood)

Lakewood Township is the most populous township in Ocean County, in the U.S. state of New Jersey. A rapidly growing community, as of the 2020 United States census, the township's population was 135,158, its highest decennial count ever and an increase of 42,315 (+45.6%) from the 2010 census count of 92,843, which in turn reflected an increase of 32,491 (+53.8%) from the 60,352 counted at the 2000 census. The township ranked as the fifth-most-populous municipality in the state in 2020, after ranking seventh in 2010 and 22nd in 2000. The sharp increase in population from 2000 to 2010 was led largely by increases in the township's Orthodox Jewish and Latino communities. Further growth in the Orthodox community led to a sharp increase in population in the 2020 census, with a large number of births leading to a significant drop in the township's median age. The Census Bureau's Population Estimates Program calculated that the township's population was 138,070 in 2021, surpassing Elizabeth as the fourth-most-populous municipality in New Jersey.

As a major hub of Orthodox Judaism, Lakewood is home to Beth Medrash Govoha (BMG), the largest yeshiva outside of Israel. The large Orthodox population, which comprises more than half the township's population, strongly influences the township's culture and wields considerable political clout in the township as a voting bloc.

The earliest documented European settlement of the present Lakewood area was by operators of sawmills, from about 1750 forward. One such sawmill—located at the east end of the present Lake Carasaljo—was known as Three Partners Mill from at least 1789 until at least 1814. From 1815 until 1818, in the same area, Jesse Richards had an iron-smelting operation known as Washington Furnace, using the local bog iron ore. The ironworks were revived in 1833 by Joseph W. Brick, who named the business Bergen Iron Works, which also became the name of the accompanying town. In 1865, the town was renamed Bricksburg in 1865, and in 1880, it was renamed Lakewood and became a fashionable winter resort.

Lakewood's developers thought that "Bricksburg" didn't capture their vision for the community, and the names "Brightwood" and "Lakewood" were proposed. After reaching out to area residents, "Lakewood" was chosen, and the United States Postal Service approved the name in March 1880. The name "Lakewood" was intended to focus on the location near lakes and pine forests.

Lakewood was incorporated as a township by an act of the New Jersey Legislature on March 23, 1892, from portions of Brick Township. Portions of Howell Township in Monmouth County were annexed to Lakewood Township in 1929.

Lakewood's three most prominent hotels were the Laurel House (opened in 1880; closed in 1932), the Lakewood Hotel (opened January 1891, closed in 1925), and the Laurel-in-the-Pines (opened December 1891, burned down in 1967). Lakewood's promoters claimed that its winter temperature was usually about ten degrees warmer than that of New York City and were warmer than points located further south, but this claim is not substantiated by official records of the United States Weather Bureau. During the 1890s, Lakewood was a resort for the rich and famous, and The New York Times devoted a weekly column to the activities of Lakewood society. Grover Cleveland spent the winters of 1891–1892 and 1892–1893 in a cottage near the Lakewood Hotel, commuting to his business in New York City. Mark Twain also enjoyed vacationing in Lakewood. George Jay Gould I acquired an estate at Lakewood in 1896, which is now Georgian Court University. John D. Rockefeller bought a property in 1902 which later became Ocean County Park. Lakewood's hotel business remained strong in the 1920s and 1950s, but went into severe decline in the 1960s.

In 1943, Aharon Kotler founded Beth Medrash Govoha (BMG). In time, it would grow to become the largest yeshiva outside of Israel. In the 1960s, much of the woods and cranberry bogs in the township were replaced by large housing developments. Leisure Village, a condominium retirement development on the south side of Route 70, opened for sale in 1963.