What grades does Mill Street Elem School serve?

Mill Street Elem School operates as a Primary school within the local district. The school serves families in the Naperville area.

Where is Mill Street Elem School located?

Mill Street Elem School is a urban school in Naperville, IL.

What is the student-teacher ratio at Mill Street Elem School?

The student-teacher ratio at Mill Street Elem School is 13:1. Lower ratios generally indicate smaller class sizes.

What schools are in Naperville, IL?

Schools in Naperville include Mill Street Elem School and others operated by the local district. The district serves families throughout the Naperville area.

ILPrimaryCalendar available · 60 events · Auto-updating

Mill Street Elem School — School Calendar 2026-27

Primary|Naperville, Illinois|Naperville CUSD 203

Naperville, IL 60563

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Upcoming Events

Jul

Mon

Board of Education MeetingEvent

https://go.boarddocs.com/il/naperville203/Board.nsf/Public

Aug

Mon

Board of Education MeetingEvent

https://go.boarddocs.com/il/naperville203/Board.nsf/Public

Aug

Mon

Institute Day (No School)Event

Aug

Tue

Staff Development Day (No School)Event

Aug

Wed

Teacher Work Day (No School)Staff Day

Aug

Thu

Classes BeginEvent

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Plus waste, sports, holidays, and more.

School Profile

Grades

K–5

Enrollment

597

Student:Teacher

13:1

Locale

Urban

District

Naperville CUSD 203

Phone

(630)420-6353

School Statistics

Academics (SY 2020-21)

ELA Proficiency

59%

93th percentile in IL

Math Proficiency

52%

91th percentile in IL

Chronic Absenteeism

10.5%

SY 2019-20

Technology & Internet Access (SY 2021-22)

Wi-Fi

Campus-wide wireless

Fiber Internet

High-speed connection

586

Connected devices

Staff & Support Services (SY 2021-22)

Teachers (FTE)

45.7

100% fully certified

Psychologists

Social Workers

Anti-Bullying Policy

District Finance (FY 2023)

Per-Pupil Spending

$22,199

Total current expenditure

Instruction Spending

$12,919

Per pupil, classroom only

Total Revenue/Pupil

$25,162

All funding sources

Funding Sources

Federal 3%State 26%Local 71%

District-level data from NCES F-33 Survey

Community Context

Community Need Level

Moderate

CDC/ATSDR Social Vulnerability Index 2022

Neighborhood Indicators (Census Tract)

10.7%

Below 150% poverty line

4.7%

Unemployment rate

5.2%

Uninsured residents

6.6%

No HS diploma (25+)

Special Education (IDEA)

District-level data from IDEA Part B · Students ages 3-21 served under IDEA

Total Students Served

2,112

Ages 3-21 under IDEA

School-Age (6-21)

1,962

Receiving special ed services

Est. % of Enrollment

100%

District rate, school may vary

Disability Categories (District)

Specific Learning Disability

461 (23%)

Other Health Impairment

435 (22%)

Speech/Language Impairment

410 (21%)

Autism

263 (13%)

Emotional Disturbance

80 (4%)

Intellectual Disability

60 (3%)

Source: U.S. Department of Education, IDEA Section 618 Data · District-level counts · Individual school figures may differ

Enrollment Trend (2014-2025)

600

Current enrollment

Stable(-5% 5yr)

Coming Up

Mon, Jul 20, 2026

Board of Education Meeting

Event

Mon, Aug 3, 2026

Board of Education Meeting

Event

Mon, Aug 10, 2026

Institute Day (No School)

Event

Full School Calendar 2026-27

Date	Event	Type	Level
Mon, Sep 7, 2026	Labor Day Holiday (No School)	Holiday	—
Tue, Sep 8, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Tue, Sep 22, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, Oct 5, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Thu, Oct 8, 2026	Parent/Teacher Conferences (5:00 - 8:30 PM)	Staff Day	—
Fri, Oct 9, 2026	Parent/Teacher Conferences (No School)	Staff Day	—
Mon, Oct 12, 2026	Columbus/Indigenous Peoples' Day (No School)	Event	—
Fri, Oct 16, 2026	Career Motive-8 All Naperville 203 eighth-grade students will participate throughout the school day.During the event, students will interact with professionals from a wide variety of industries, participate in engaging activities, ask questions, and learn about the skills, education, and experiences that can lead to different career paths. Career Motive-8 is one of the many ways we help students explore their interests and begin thinking about their future.We are currently seeking business and industry partners	Event	—
Mon, Oct 19, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, Nov 2, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Tue, Nov 3, 2026	Election Day - E-Learning Day	Event	—
Fri, Nov 6, 2026	End of First Trimester	Event	—
Mon, Nov 16, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Wed, Nov 25, 2026	Thanksgiving Holiday (No School)	Holiday	—
Mon, Dec 14, 2026	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Fri, Dec 18, 2026	End of First Semester	Event	—
Mon, Dec 21, 2026	Winter Vacation (No School)	Break	—
Mon, Jan 4, 2027	Institute Day (No School)	Event	—
Tue, Jan 5, 2027	Classes Resume	Event	—
Mon, Jan 18, 2027	MLK Holiday (No School)	Holiday	—
Tue, Jan 19, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, Feb 1, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, Feb 15, 2027	Presidents' Day (No School)	Holiday	—
Tue, Feb 16, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Thu, Feb 18, 2027	Parent/Teacher Conferences (5:00 - 8:30 PM)	Staff Day	—
Tue, Feb 23, 2027	Election Day - Tentative E-Learning Day	Event	—
Fri, Feb 26, 2027	County Institute Day (No School)	Event	—
Mon, Mar 1, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Thu, Mar 4, 2027	Institute Day (No School)	Event	—
Thu, Mar 4, 2027	Parent/Teacher Conferences (5:00 - 8:30 PM)	Staff Day	—
Fri, Mar 5, 2027	Parent/Teacher Conf. & End of 2nd Trimester (No School)	Staff Day	—
Mon, Mar 15, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Fri, Mar 26, 2027	Spring Holiday (No School)	Holiday	—
Mon, Mar 29, 2027	Spring Vacation (No School)	Break	—
Mon, Apr 5, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Tue, Apr 6, 2027	Election Day - E-Learning Day	Event	—
Mon, Apr 19, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, May 3, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Fri, May 7, 2027	Half-Day Institute (EC-No School)	Event	—
Mon, May 17, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, May 24, 2027	Classes End (Tentative)	Event	—
Tue, May 25, 2027	Emergency Days (if needed)	Event	—
Mon, May 31, 2027	Memorial Day (No School)	Holiday	—
Mon, Jun 7, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—
Mon, Jun 21, 2027	Board of Education Meeting https://go.boarddocs.com/il/naperville203/Board.nsf/Public	Event	—

Showing 45 events for the 2026-27 school year

Frequently Asked Questions about Mill Street Elem School

Mill Street Elem School has a total enrollment of 597 students and serves grades Primary. The school is part of the local school district in Naperville, IL.