US Private Schools
U.S. Location Dataset // 22,510

22,510 named US private schools from the federal private school geocode file, with street address, coordinates, and — joined from the private school survey — enrollment, grade range and religious affiliation on 81% of records. A note on the count, because the usual figure is wrong: the '30,000 US private schools' number people quote is the government's weighted universe ESTIMATE of 29,727, not a list. Only 22,345 responding schools are actually published by name, so 22,510 named schools is the real ceiling and anyone selling you 30,000 is padding. Private schools are independent buyers with no district procurement above them, which makes them unusually accessible for curriculum, uniforms, food service, technology, facilities and fundraising vendors. Affiliation matters commercially — Catholic diocesan schools buy through the diocese, independent schools do not.

All 22,510 records, as published — the complete set rather than a sample. That matters most for coverage and gap questions: put together the same list from partial searches and every location you miss reads as a gap that is not there, so the answer is wrong rather than merely late. Assembling the U.S.-wide coverage by hand also means one query per area against sources that cap what they return per search.