Inyathi High School (formerly, Inyathi Secondary School and prior to that Inyathi Mission) holds the distinction of being the oldest formal educational institution of any kind in Zimbabwe.
 Inyathi High School stands out in the history of Zimbabwe as having been amongst the first places in modern-day Zimbabwe to have seen the dawn of Western Civilization within the region.
 It is also the first formal points within Zimbabwe to have guardedly resisted Western incursions into the region by the missionaries.
 Finally, it was also the site of mutual co-existence between the Kingdom of King Mzilikazi and the Western Missionaries.
 Inyathi High School is a boarding co-educational secondary school in Inyathi, Zimbabwe designed along the lines of the traditional British Boarding Public School System (without the attendant social implications).
 Together with sister institutions of Dombodema High School (Mission)in Plumtree and Tennyson Hlabangane High School (formerly known as Hope Fountain Mission) in Hope Fountain, Inyathi High School is privately owned by the United Congregational Church of Southern Africa (UCCSA) which is itself an offshoot of the London Missionary Society (LMS).
Presbyterian Boys' Secondary School (or PRESEC) is a secondary school for boys, founded in 1938, under the auspices of the Presbyterian Church of the Gold Coast.
 The progenitor of the school was the Basel missionary, The Reverend Nicholas Timothy Clerk.
 The school has ties with its sister school, Aburi Girls' Senior High School.
J. Sterling Morton High School East (often called "Morton East") is a public secondary school located in Cicero, Illinois.
 Morton East is one of three schools in J. Sterling Morton High School District 201.
 Morton East is a sophomore through senior building, with future students attending the "J. Sterling Morton Freshman Center" for one year.
 Morton East's sister school, J. Sterling Morton High School West is a four-year secondary school.
Reverend Juuso Shikongo Senior Secondary School is a Namibian public school in the Omuntele Constituency in the Oshikoto Region about 60 kilometres southeast of Ondangwa, which was in 2013 inaugurated by then Education Minister Dr David Namwandi.
 The school is named after the founder of the Evangelical Lutheran Church in Namibia 's Omuntele congregation, Reverend Juuso Shikongo, the school started operating from a sister school, Uukule Senior Secondary School situated at Onyaanya Constituency some 30 kilometres away, in 2011 before moving to Omuntele at the beginning of the year 2013.
 In his official inauguration address, the education minister David Namwandi pointed out that Government has spent N$120 million (Namibian Dollars) on the construction of classrooms, offices and hostels for the school.
Legae Academy is an English medium, independent, co-educational, secondary school located in Gaborone, Botswana.
 The academy is a sister school to Legae English Medium Primary School which was established in 1983.
 The academy follows the Cambridge International Examinations syllabus, allowing students to sit for the International General Certificate of Secondary Education (IGCSE) after four years of secondary education, and the A-Level examination after a further two years.Legae academy is the best school for Cambridge in not only Botswana but Southern africa itself
Winslow Township High School (WTHS) is a four-year comprehensive public high school in Winslow Township, in Camden County, New Jersey, United States, that serves students in ninth through twelfth grades as the lone secondary school of the Winslow Township School District.
 Until 2000, the facility that is now Winslow Township High School was part of the Lower Camden County Regional School District and was known as Edgewood Regional High School, which was the sister school of Overbook Regional Senior High School in Pine Hill (now known as Overbrook High School).
Ishibu Higher Secondary School (Nepali: ईसिवू उचच माधयमिक विधालय ) is a community school under government of Nepal located at the point of ishibu vdc ward no.4 in Terathum district of Nepal.
It is established in 1960 A.D in the fundamental of primary school and it has been upgraded adding high school & later in 5–7 years ago it has risen as higher secondary school.Since it is situated on the lap of the Himalayas, it has automatically a panoramic environment of nature where the atmosphere is cool and favorable for students.
 In the past time its educating system was in old system where there was everything lack needed for studies and teachers were used to regard as god like and it was quite rigorous management of school therefore, students were forced to study with hard labour memorising by heart.Teaching was lecture based method so that there was rare practical education.
 But now education system has also been change along with changes of time.It has a modern fashioned library and it is equipped with sufficient halls for seating of students.
 Head of school is thought to be Principal or headmaster and the former principal was Mr.Mahesh Niraula whereas the current Principal is Mr. Ram Prasad Timsina.Since it is a government school it has not any sister school however few name of schools may come with the same name but they are distinguished by location.
Guwe Secondary School is located in Zimbabwe.
 It has a sister school in Carle Place, New York, United States.
Singwango Secondary School is located in Filabusi, Matabeleland South Province, Zimbabwe.
 It had a sister school in Carle Place, New York, United States, although Carle Place High School still donates sports equipment and clothes.
Carle Place Middle/High School is a six-year comprehensive public high school located in the hamlet of Carle Place in Nassau County, New York.

Question: Zimbabwe's Guwe Secondary School has a sister school in what New York cunty?
Answer: Nassau County