Is private school cheaper in Naperville or Sunnyvale?

Naperville has lower average private school tuition at $13,800/year vs $21,600/year in Sunnyvale. That's $7,800/year less, or $101,400 over a K-12 career.

How much can I save on private school by choosing Naperville over Sunnyvale?

Average tuition in Naperville is $7,800/year less than Sunnyvale. Over 13 years (K-12), that's $101,400 per child. Religious schools are the most affordable option in both cities: $8,700/year in Naperville, $14,100/year in Sunnyvale.

How do Naperville and Sunnyvale private school costs compare to the national average?

The national average private school tuition is $12,350/year. Naperville averages $13,800/year ($1,450 above average). Sunnyvale averages $21,600/year ($9,250 above average).

Private School Cost: Naperville vs Sunnyvale

Naperville averages $7,800/year less for private school (57% cheaper). Over K-12, that's $101,400 per child.

Bottom Line

Naperville is the cheaper city for private school. Average tuition: $13,800/year vs $21,600/year in Sunnyvale. Religious schools run $8,700/year on the low end.

Naperville

$13,800

avg tuition/year

$1,450 above national avg

Lower cost

Sunnyvale

$21,600

avg tuition/year

$9,250 above national avg

Tuition by School Type & Grade

Category	Naperville	Sunnyvale	Difference
All Schools (Average)	$13,800/yr	$21,600/yr	-$7,800
Religious Schools	$8,700/yr	$14,100/yr	-$5,400
Independent/Prep	$31,900/yr	$42,100/yr	-$10,200
Elementary (K-5)	$11,700/yr	$18,400/yr	-$6,700
Middle School (6-8)	$13,800/yr	$21,600/yr	-$7,800
High School (9-12)	$16,600/yr	$25,900/yr	-$9,300

K-12 Total Cost (13 Years)

Naperville

$179,400

Sunnyvale

$280,800

Choosing Naperville saves $101,400 per child over a full K-12 career. Two kids? That's $202,800.

Sample Schools

Naperville

Benet Academy (Lisle/Naperville area)

Catholic · 9–12 · $18,400/yr

Wheaton Academy

Christian · 9–12 · $18,200/yr

Sunnyvale

Archbishop Mitty High School

Catholic · 9–12 · $26,800/yr

Stratford School (Sunnyvale)

Independent · PK–8 · $24,200-$27,600/yr

Full Naperville breakdown → Full Sunnyvale breakdown →

Illinois private school costs California private school costs

About This Comparison

This comparison uses NCES Private School Universe Survey data, adjusted for metro-level cost-of-living differences. "Average tuition" blends religious schools (Catholic, Christian) and independent day/prep schools. Religious schools typically cost 60-70% less than independent schools in the same city.

Grade-level estimates (elementary, middle, high) are derived from the city average using national grade-level multipliers. High school tuition typically runs 15-25% above the city average; elementary runs 10-20% below.