U.S. City with highest private school enrollment?

"Private school versus public school isn’t an option for most Americans. The average annual cost of a private education is $10,940, and only about 20% of students have parents willing or able to pay that freight....

"According to a new study by real estate website Trulia, the city with the highest proportion of private school enrollees is New Orleans. A whopping one-fourth of all students in the Big Easy attend a private institution....

"Dr. Jan Daniel Lancaster, superintendent of Catholic Schools for the New Orleans archdiocese...: “New Orleans is a very Catholic area,” said Lancaster. “People want a very strong academic education that is embedded in the catholic faith, and Catholic schools are so strong academically.” Another reason might be the example set by prominent members of the community. Lancaster says two state senators, the mayor, and the local district attorney, among others, all received a Catholic education..."
-- Money magazine, Aug. 13, 2014
http://time.com/money/3105112/private...

For other reasons, please see The Fight for Home: How (Parts of) New Orleans Came Back The Fight for Home