| Official Name: | Marlborough, New York |
| Settlement Type: | Town |
| Pushpin Map: | New York |
| Pushpin Map Caption: | Location within the state of New York --> |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Ulster |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 68.63 |
| Area Land Km2: | 63.38 |
| Area Water Km2: | 5.26 |
| Area Total Sq Mi: | 26.50 |
| Area Land Sq Mi: | 24.47 |
| Area Water Sq Mi: | 2.03 |
| Population As Of: | 2020 |
| Population Total: | 8712 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 157 |
| Elevation Ft: | 515 |
| Coordinates: | 41.6319°N -73.9842°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 12542 |
| Area Code: | 845 |
| Blank Name: | FIPS code |
| Blank Info: | 36-45722 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0979200 |
Marlborough is a town in Ulster County, New York, United States, in the southeastern corner of the county. The population was 8,712 at the 2020 census.[2] U.S. Route 9W passes through the eastern part of the town. US Route 44 and NY 55 cross the northwestern corner of the town. The town was named after the Duke of Marlborough.
A land grant (patent) of the territory was made to Captain John Evans of the Royal Navy in 1694. One of his first settlers arrived in 1697.
The region was part of the Newburgh Precinct and was set apart in 1772. The Town of Marlborough was formed in 1788 during a period of town formation in the county. Part of the town was used to create the town of Plattekill in 1800.
According to the United States Census Bureau, the town has a total area of 26.5sqmi, of which 24.8sqmi is land and 1.7sqmi (6.3%) is water.
The eastern town line, marked by the Hudson River is the border of Dutchess County, and the southern town line is the border of Orange County. The western border of the town closely parallels the Marlboro Mountain ridge, dividing Marlborough from the town of Plattekill.
The lowest point in the town is the shore of the Hudson River, which is at sea level. The highest point is the summit of Marlboro Mountain, at 1,127 feet (344 m).
As of the census[3] of 2000, there were 8,263 people, 3,020 households, and 2,144 families residing in the town. The population density was 332.8sp=usNaNsp=us. There were 3,176 housing units at an average density of 127.9sp=usNaNsp=us. The racial makeup of the town was 94.48% white, 2.82% African American, .19% Native American, .33% Asian, .01% Pacific Islander, .84% from other races, and 1.33% from two or more races. Hispanic or Latino of any race were 3.98% of the population.
There were 3,020 households, out of which 36.0% had children under the age of 18 living with them, 57.1% were married couples living together, 9.5% had a female householder with no husband present, and 29% were non-families. 22.6% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older. The average household size was 2.73 and the average family size was 3.25.
In the town, the population was spread out, with 26.5% under the age of 18, 7.4% from 18 to 24, 30.8% from 25 to 44, 23.5% from 45 to 64, and 11.7% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 96.8 males. For every 100 females age 18 and over, there were 94.8 males.
The median income for a household in the town was $49,788, and the median income for a family was $56,933. Males had a median income of $38,074 versus $29,608 for females. The per capita income for the town was $21,079. About 5.8% of families and 8.2% of the population were below the poverty line, including 8.9% of those under age 18 and 9.5% of those age 65 or over.