How much money do parents in the Minneapolis-St. Paul metro area spend
annually for private tutoring services for their kids in grades K
through 12?  I'm looking for the total market size, not a per capita
number or some other number.  The number should include all tutoring
services, including private tutors.

It seems unlikely that an accurate number can be found by any means.
Private tutour could mean people who work for free, but accept gifts
or sexual favors. Can you hope to tap into a significant part of that
portion of the tutoring market? A better question might be are tutors
typically paid $3 per hour or $30 per hour. My guess is closer to $3
per hour. You probably can not profitably tap into the low end of the
tuteroring market even if you plan to use ilegal aliens.
 If we figure two million humans in the twin cities and vicinity, the
market is two million dollars USA per year, excluding portions of the
market that are unreachable except by outstanding results at a large
loss rather than a profit. That is my guess, assuming Twin Cities is
Mineapollis and Saint Paul.   Neil

Sorry you did specify Mineapolis and Saint Paul Do you want to include
any portion of the money spent by the public school system tutoring
children who are accademically challanged? Special Education? Sylvian?
Children who are instaltionalized = orphans, abused, delinquents etc? 
Do you want to inlude any portion of the tuetion paid by parents who
have their children enrolled in private and religious schools. Do you
want to include any portion of Big Brother, Big Sister, Optimists
Club, Boy's Clubs of America or other mentoring programs?   Neil

Good questions Neil.

I'm interested in tutoring services purchased by parents to help their
kids improve in reading, math and study skills.  To simplify a bit, we
can assume that the market is served by the Sylvans, Huntingtons and
KnowledgePoints of the world -- who charge between $35 and $60 per
hour -- and private tutors, who may be moonlighting teachers, for
example.

I'm not looking for private school tuition dollars or for money spent
by anyone other than parents.

Glenn