How many schools are in HILLSBORO R-III?

HILLSBORO R-III includes 6 schools across elementary, middle, and high school levels.

Where is HILLSBORO R-III located?

The HILLSBORO R-III district is headquartered in HILLSBORO, MO. It serves Jefferson County County.

How many students are enrolled in HILLSBORO R-III?

3,230 students attend schools in HILLSBORO R-III.

Rural

HILLSBORO R-III — District Profile & Schools

HILLSBORO, Missouri · Jefferson County

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Key Dates — HILLSBORO R-III School Calendar

The first day of school in HILLSBORO R-III is Mon, Aug 24, 2026, according to the district's published calendar.

First day of school: Mon, Aug 24, 2026
No School: Fri, Sep 4, 2026
No School for Students: Fri, Sep 4, 2026
No School-Labor Day (District Closed): Mon, Sep 7, 2026
Labor Day-District Closed in Observance of Labor Day Holiday: Mon, Sep 7, 2026
No School-Teacher Professional Development Day: Wed, Apr 14, 2027

3,230

Students

Schools

2 elem · 2 mid · 1 high

15.5:1

Student-Teacher

208 teachers

0 - 12

Grades

Quick Facts

538

Avg. School Size

411

Total Staff

HILLSBORO R-III Calendar

66 events

Tue, Jul 21

PD Day

Community Information Session on Project Planning

Community and Staff Engagement Sessions:  Facilities Master Planning - July 21, 2026The Hillsboro R-3 School District invites all parents, staff, students, taxpayers, and community members to participate in an upcoming Community Engagement Session as we begin developing the district's comprehensive Facilities Master Plan.Tuesday, July 21, 20266:30 p.m.Community Information Session on Project PlanningHillsboro Intermediate - Board Room This meeting is an opportunity for our community to

Tue, Jul 21

PD Day

Community and Staff Engagement Sessions: Facilities Master Planning

Tue, Jul 21

PD Day

Community and Staff Engagement Sessions: Facilities Master Planning

Tue, Jul 21

PD Day

Community Information Session on Project Planning

Thu, Jul 23

Event

Board of Education Open Meeting

Board of Education Meeting starts in Closed Session at 6pm and then an Open Session at 7pm. Everyone is invited to attend the Open Session at the Intermediate School.

Thu, Jul 23

Event

Board of Education Open Meeting

Board of Education Meeting starts in Closed Session at 6pm and then an Open Session at 7pm. Everyone is invited to attend the Open Session at the Intermediate School.

Tue, Aug 11

Meeting

4th Grade Parent Guardian Orientation

This is a chance for all parents of guardians of incoming 4th grade students to get a look at the Intermediate School. Come with questions. Meet some of our teachers. You'll want to come to orientation night. We look forward to seeing everyone.

Wed, Aug 12

Event

5th Grade Orientation Night

All parents and guardians of incoming 5th graders are welcome to take a look around the Intermediate School. Come meet our teachers and come with questions. There are some changes that our Administrators would like to share with parents so this is the time to come and see what's happening this year at Hillsboro Intermediate School.

Thu, Aug 13

Event

6th Grade Orientation Night

This is a chance for all parents of guardians of incoming 6th grade students to get a look at the Intermediate School. Come with questions. Meet some of our teachers. You'll want to come to orientation night. We look forward to seeing everyone.

Aug 18 - 20

PD Day

Professional Development Days

From Tuesday, August 18th until Thursday, August 20th: Professional Development Days will take place on the Hillsboro R-3 School District campuses.

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Data source: official HILLSBORO R-III website · Last verified Jul 7, 2026 · How we verify this data