The Town of North Hempstead occupies the northwest part of the county. Its Supervisor is Jon Kaiman, a Democrat.
According to the "Our History" series in the LI-based newspaper, Newsday, "In September, 1775, almost a year before the future nation declared its independence from George III, the people of Great Neck, Cow Neck and other areas north of Old Country Road signed their own Declaration of Independence."
"The signers, passionate Patriots, declared their independence from the Town of Hempstead, which, in their opinion, had the bad habit of pledging allegiance to the king. Therefore, the northern necks declared themselves 'an entire separate and independent beat or district.' The 'beat' would officially become the Town of North Hempstead in 1784."
"During the Revolution, the northern Patriots had their own militia headed by Capt. John Sands of Cow Neck (now Port Washington), which invaded South Hempstead in search of arms. The rift caused a north-south animosity that would take years to heal."
"The first North Hempstead Town Board, headed by Patriot Adrian Onderdonk, had to cope with an impoverished area, devastated by an avenging British occupation. The councilmen met in Roslyn taverns and didn't get a permanent home until 1907, when the present town hall opened in Manhasset."
The Town of North Hempstead became more affluent with the opening of the Long Island Rail Road through to Great Neck, and the inauguration of steamboat service from Manhattan in 1836.
The Town of North Hempstead is made up of 30 incorporated Villages that had the right to set zoning restrictions to protect their rights and resources. No new villages have been created since 1936, when a revised county charter denied zoning power to future villages. There are also some unincorporated area in the Town of North Hempstead that are not part of Villages.
According to the United States Census Bureau, the town has a total area of 69.1 square miles (179.0 km²), of which, 53.6 square miles (138.8 km²) of it is land and 15.5 square miles (40.2 km²) of it (22.47%) is water.
There were 76,820 households out of which 33.6% had children under the age of 18 living with them, 64.0% were married couples living together, 8.9% had a female householder with no husband present, and 23.9% were non-families. 20.6% of all households were made up of individuals and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.27.
In the town the population was spread out with 23.6% under the age of 18, 7.5% from 18 to 24, 27.1% from 25 to 44, 25.2% from 45 to 64, and 16.6% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 92.8 males. For every 100 females age 18 and over, there were 89.5 males.
According to a 2006 estimate, the median income for a household in the town was $93,090, and the median income for a family was $114,567. Males had a median income of $60,094 versus $41,331 for females. The per capita income for the town was $41,621. About 3.1% of families and 4.8% of the population were below the poverty line, including 5.4% of those under age 18 and 5.1% of those age 65 or over.
North Hempstead is the only town on Long Island that does not have a corresponding hamlet or village in its borders with the same name; Hempstead and Oyster Bay in Nassau County and the towns of Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Southold, Southampton, Shelter Island and East Hampton in Suffolk County all have smaller subdivisions with the same name.