Follow up to Illinois PTA going PTO story. Read it here. In the article, Illinois PTA president Gayla Boomer asks "where I get my numbers" on PTA membership. Methinks she needs to read PTA materials. The numbers I gave the reporter come straight from National PTA. 23,000 units in PTA (including quite a few international units). More than 112,000 schools in U.S alone. 25% is generous. For a link to our PTO v PTA page, click here.