South Union School
Location in Worcester County and the state of Massachusetts.
|• Total||1.8 sq mi (4.8 km2)|
|• Land||1.8 sq mi (4.8 km2)|
|• Water||0.0 sq mi (0.0 km2)|
|Elevation||249 ft (76 m)|
|• Density||1,500/sq mi (550/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|GNIS feature ID||0611322|
Cordaville is located at (42.269947, -71.526869).
According to the United States Census Bureau, the CDP has a total area of 4.8 km² (1.9 mi²), all land.
As of the census of 2010, there were 2,650 people, 870 households, and 741 families residing in the CDP. The population density was 524.9/km² (1,360.6/mi²). There were 889 housing units at an average density of 171.1/km² (443.6/mi²). The racial makeup of the CDP was 87.3% White, 0.71% African American, 9.39% Asian, 0.0% Pacific Islander, 0.8% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 2.5% of the population.
There were 870 households out of which 45.9% had children under the age of 18 living with them, 74.7% were married couples living together, 8.0% had a female householder with no husband present, and 14.8% were non-families. 12.1% of all households were made up of individuals and 3.7% had someone living alone who was 65 years of age or older. The average household size was 3.04 and the average family size was 3.33.
In the CDP, the population was spread out with 32.4% under the age of 18,The median age was 41 years. For every 100 females there were 101.3 males.
The median income for a household in 2012 Inflation adjusted dollars, the CDP was $149,425, and the median income for a family was $157,097.  None of the families and 0.4% of the population were living below the poverty line, including no under eighteens and none of those over 64.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "American FactFinder". United States Census Bureau. Archived from the original on 2013-09-11. Retrieved 2008-01-31.
- . United States Census Bureau http://factfinder2.census.gov/faces/tableservices/jsf/pages/productview.xhtml?pid=DEC_10_DP_DPDP1. Missing or empty