| Official Name: | Hillside Lake, New York |
| Settlement Type: | Census-designated place |
| Mapsize: | 220px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Dutchess |
| Subdivision Type3: | Town |
| Subdivision Name3: | East Fishkill |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.46 |
| Area Land Km2: | 1.35 |
| Area Water Km2: | 0.10 |
| Area Total Sq Mi: | 0.56 |
| Area Land Sq Mi: | 0.52 |
| Area Water Sq Mi: | 0.04 |
| Population As Of: | 2020 |
| Population Total: | 1091 |
| Population Density Km2: | 805.73 |
| Population Density Sq Mi: | 2086.04 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 114 |
| Elevation Ft: | 374 |
| Coordinates: | 41.6197°N -73.7928°W |
| Blank Name: | FIPS code |
| Blank Info: | 36-34803 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1867407 |
| Unit Pref: | Imperial |
Hillside Lake is a hamlet and census-designated place (CDP) in Dutchess County, New York, United States. The population was 1,084 at the 2010 census.[2] It is part of the Poughkeepsie - Newburgh - Middletown, NY Metropolitan Statistical Area as well as the larger New York - Newark - Bridgeport, NY-NJ-CT-PA Combined Statistical Area.
Hillside Lake is located in the northern part of the town of East Fishkill at .[3] The community surrounds a small lake, also called Hillside Lake.
According to the United States Census Bureau, the CDP has a total area of 1.5km2, of which 1.4km2 is land and 0.1km2, or 7.08%, is water.[2]
The main road connecting the hamlet to the New York state highway system is County Route 33 (CR 33), also known as Hillside Lake Road. The road runs for 3miles from CR 29 (partly serving as a continuation of Hillside Lake Road) near the hamlet of Fishkill Plains to CR 21 in the town of LaGrange. CR 33 itself does not directly intersect with any state routes but can be accessed from New York State Route 376 (via CR 29) and the Taconic State Parkway (via CR 21 or CR 42). CR 33 has an average daily traffic of about 5,000.
As of the census[4] of 2000, when the CDP was drawn to encompass 4sqkm, there were 2,022 people, 635 households, and 532 families residing in the CDP. The population density was 1331sp=usNaNsp=us. There were 659 housing units at an average density of 433.8sp=usNaNsp=us. The racial makeup of the CDP was 94.26% White, 1.73% African American, 0.20% Native American, 1.14% Asian, 0.54% from other races, and 2.13% from two or more races. Hispanic or Latino of any race were 3.07% of the population.
There were 635 households, out of which 51.8% had children under the age of 18 living with them, 74.6% were married couples living together, 6.3% had a female householder with no husband present, and 16.2% were non-families. 12.3% of all households were made up of individuals, and 4.6% had someone living alone who was 65 years of age or older. The average household size was 3.18 and the average family size was 3.52.
In the CDP, the population was spread out, with 33.2% under the age of 18, 5.6% from 18 to 24, 32.8% from 25 to 44, 21.7% from 45 to 64, and 6.6% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 98.2 males. For every 100 females age 18 and over, there were 98.5 males.
The median income for a household in the CDP was $71,344, and the median income for a family was $81,407. Males had a median income of $55,833 versus $26,912 for females. The per capita income for the CDP was $25,649. 0.9% of the population and less than 0.1% of families were below the poverty line. less than 0.1% of those under the age of 18 and 10.8% of those 65 and older were living below the poverty line.