Question: In the 2010 census what was the population of the County where Roxbury High School is located ?

Context paragraphs:
Cleveland High School (North Carolina): Cleveland High School or CvHS is located in unincorporated Johnston County, North Carolina.  It lies within the Cleveland community, with a postal address of Clayton.  It was established during the 2010- 2011 school year.  It is a public school which is part of Johnston County Schools.  Cleveland High School was originally part of Cleveland School, which was founded in 1925 as an all-grade school.  Due to the growth of student population in Johnston County, the high school grade students were moved to South Johnston High School in 1969, as well as other high schools in the county.  The remaining students continued to attend until the middle school was built in 1999.  The current high school opened in 2010, one of two new Johnston County School District high schools to open that year, the other being Corinth Holders High School.

Morris County, New Jersey: Morris County is a county located in the U.S. state of New Jersey, about 25 mi west of New York City.  According to the 2010 United States Census, the population was 492,276, up from the 470,212 at the 2000 Census, As of the 2016 Census estimate, the county's population was 498,423, making it the state's 10th-most populous county, and marking a 1.2% increase from 2010.  The county is part of the New York Metropolitan Area, and its county seat is Morristown.  The most populous place was Parsippany-Troy Hills Township, with 53,238 residents at the time of the 2010 Census, while Rockaway Township covered 45.55 sqmi , the largest total area of any municipality.

Kenvil, New Jersey: Kenvil is an unincorporated community and census-designated place (CDP) located within Roxbury Township, in Morris County, New Jersey, United States, that had been part of the Succasunna-Kenvil CDP as part of the 2000 United States Census, at which time the population of the combined was 12,569.  For the 2010 Census, the area was split into two CDPs, Succasunna (with a 2010 Census population of 9,152) and Kenvil (3,009 as of 2010).

Alum Rock, California: Alum Rock ( ) is a census-designated place (CDP) in Santa Clara County, California, United States and a community of San Jose.  The CDP, which excludes all annexed areas, had a population of 15,536 at the 2010 census.  Alum Rock was named after a rock formerly thought to be composed of alum in nearby Alum Rock Park.  Formerly a separate town, much of the community is unincorporated surrounded by incorporated San Jose; neighborhoods between White Road and Capitol Avenue are part of a city/county agreement for annexation.  James Lick High School, Mt. Pleasant High School, and William C. Overfelt High School (which are part of the East Side Union High School District), Joseph George Middle School, Ocala Middle School, and other schools in the Alum Rock Union School District serve the neighborhood.  Near the center of the community is a small neighborhood commercial strip along Alum Rock Avenue at White Road.

West Branch Area School District: West Branch Area School District is a small, rural, public school district located in Morrisdale, Clearfield County, Pennsylvania.  The district is one of the 500 public school districts of Pennsylvania.  West Branch Area School District was created in 1958 by the joining of Cooper Township High School and Morris Township High School.  The district also includes Karthaus Township and Graham Township.  The district extends across the Clearfield County's eastern border to include West Keating Township in Clinton County.  West Branch Area School District encompasses approximately 165 sqmi .  According to 2000 federal census data, it served a resident population of 7,833.  By 2010, the district's population was 7,857 people.  The educational attainment levels for the School District population (25 years old and over) were 85% high school graduates and 9.3% college graduates.  In 2009, West Branch Area School District residents’ per capita income was $15,055, while the median family income was $37,054 a year.  In the Commonwealth, the median family income was $49,501 and the United States median family income was $49,445, in 2010.

Marlborough, Connecticut: Marlborough is a town in Hartford County, Connecticut, United States.  It contains the census-designated place (CDP) of Terramuggus.  The town's population was 6,404 at the 2010 census.  Marlborough is an upper class suburban and rural community.  The local high school is RHAM High School.  In 2013, Marlborough ranked third (of 24) in "Connecticut Magazine's" biannual ranking of Connecticut small towns, median home sale price between $175,000 and $224,999.  Educationally, RHAM High School, which serves Marlborough, Hebron, and Andover students, was the top-ranked regional high school in the state on the SAT in 2017, and 11th highest-performing school in the state on the test.

Wilkinsburg High School: Wilkinsburg High School (formerly Wilkinsburg Jr.  Sr.  High School) is a public school in the Wilkinsburg borough of Allegheny County, Pennsylvania, US.  It is part of the Wilkinsburg School District.  The school is the sole high school operated by the district in the Pittsburgh suburb of Wilkinsburg, Pennsylvania.  The district encompasses approximately 3 sqmi .  According to 2000 federal census data, it served a resident population of 19,196.  By 2010, the district's population declined to 15,933 people.  The educational attainment levels for the Wilkinsburg Borough School District population (25 years old and over) were 90% high school graduates and 28.5% college graduates.  The district has a mandated school uniform policy which stipulates both colors and styles of clothes.

Succasunna-Kenvil, New Jersey: Succasunna-Kenvil is a former census-designated place (CDP) located within Roxbury Township, in Morris County, New Jersey, United States.  As of the 2000 United States Census, the CDP's population was 12,569.  For the 2010 Census, the area was split into two CDPs, Succasunna (with a 2010 census population of 9,152) and Kenvil (3,009 as of 2010).

Roxbury High School (New Jersey): Roxbury High School is a four-year comprehensive public high school in the Succasunna section of Roxbury Township in Morris County, New Jersey, United States, serving students in ninth through twelfth grades, operating as the lone secondary school of the Roxbury School District.  It was established in 1903.

Greenwood School District (Pennsylvania): The Greenwood School District is a diminutive, rural, public school district located in Millerstown, Pennsylvania.  The district is the northernmost school district in Perry County, Pennsylvania.  Encompassing approximately 99 sqmi , Greenwood School District serves residents of the following municipalities: Millerstown Borough, Liverpool Borough, Greenwood Township, Liverpool Township, Tuscarora Township, Greenwood Township.  The total population of the Greenwood School District in 2007 was 5,235 per the US Census Bureau.  According to the 2010 Census by the US Census Bureau, the District served a resident population of 5,492.  The educational attainment levels for the Greenwood School District population (25 years old and over) were 86.7% high school graduates and 14.8% college graduates.

Supporting paragraphs: Roxbury High School (New Jersey) Morris County, New Jersey
Answer: 492,276