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Average

#1324 of 3,813 schools in IL

Top 35% in state

Southbury Elem School

Elementary School · Cusd 308 · Oswego, IL

A Cusd 308 elementary school where students score 4 points below what's typical for similar communities.

820 Preston Ln, Oswego, IL 60543

  • Math 33% proficient (2021)
  • Reading 38% proficient (2022)
  • 15.5:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress7.1Very Good50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-4.55 pts/yr
Data Period2009–2022
TrendDeclining
Academics7.1Very Good30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency33% (2021 EdFacts)
Reading/ELA Proficiency38% (2022 EdFacts)
Overall Proficiency36% (2022 EdFacts, Math+ELA)
Expected (poverty-adj.)40% (model expectation from 2022 EdFacts)
vs. Expected-4.4 pts
Adjusted Percentile58th
Resources & Environment5.9Average20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio15.5:1
District spending per student$16,904
Chronic Absenteeism16%

Students at Southbury Elem School score 36% proficient, which is below what's typical for similar communities (expected: 40%).

How we calculate scores →

2022 EdFacts proficiency

Most recent published year. School vs. IL average.

Math Proficiency33%(2021 EdFacts)
School
State
Not reported(2021 EdFacts)
ELA Proficiency38%(2022 EdFacts)
School
State
Not reported(2022 EdFacts)

Trend

↓ Declining

Proficiency has fallen 5 points since 2019, to 38% in 2022, across a 14-year record (2009–2022).

Show all 14 years
2009
Math
91%
ELA
84%
2010
Math
91%
ELA
81%
2011
Math
89%
ELA
81%
2012
Math
62%
ELA
59%
2013
Math
74%
ELA
69%
2014
Math
47%
ELA
54%
2015
Math
48%
ELA
52%
2016
Math
38%
ELA
48%
2017
Math
42%
ELA
61%
2018
Math
45%
ELA
41%
2019
Math
45%
ELA
41%
2020*
Math
33%
ELA
39%
2021*
Math
33%
ELA
39%
2022
ELA
38%

Multi-year averages used by the rating model: math 57% (multi-year average, 2009-2021) · reading/ELA 56% (multi-year average, 2009-2022)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 27 test records from IL state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

20.8%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Southbury Elem School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Chicago map →

Getting around & local context

  • Walk 5Car-Dependent
  • Bike 26Somewhat Bikeable
  • City Safety: Average589/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Oswego), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$116,507

Median home value

$319,300

Median rent

$1,558/mo

College educated

42.3%

Homeownership

86.2%

Poverty rate

2.7%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 60543; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

Gifted & Talented ProgramAvailable
This school offers a gifted and talented program for qualifying students.·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Prairie Point Elem SchoolEnrollment path unverified6.9K–51.3 mi447Compare →
Churchill Elem SchoolEnrollment path unverified6.7K–51.7 mi436Compare →
Old Post Elementary SchoolEnrollment path unverified5.3K–51.7 mi414Compare →
Boulder Hill Elem SchoolEnrollment path unverified4.3K–52.1 mi518Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Cusd 308

Schools in district
22
Rank in district
#8 of 21
District spending per student
$16,904NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
4.6%Census SAIPE · 2024

Southbury Elem School is listed in CUSD 308; a district label does not verify attendance for an address.

About Southbury Elem School

Southbury Elem School is a public elementary school in Oswego, IL, part of Cusd 308, serving approximately 605 students in grades Kindergarten-5th with a 15.5:1 student-teacher ratio. It holds a MySchoolScout rating of 6.9 out of 10 and ranks #1,324 of 3,813 schools in IL. State assessment records show 57% math proficiency (multi-year average, 2009-2021) and 56% reading/ELA proficiency (multi-year average, 2009-2022).

Frequently asked questions

Common questions about Southbury Elem School

What grades does Southbury Elem School serve?

Southbury Elem School serves students in grades Kindergarten through 5th.

How many students attend Southbury Elem School?

Southbury Elem School has an enrollment of approximately 605 students.

What is the student-teacher ratio at Southbury Elem School?

The student-teacher ratio at Southbury Elem School is 15.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Southbury Elem School rank in IL?

Southbury Elem School ranks #1,324 of 3,813 schools in IL.

What is Southbury Elem School's MySchoolScout rating?

Southbury Elem School has a current MySchoolScout rating of 6.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Southbury Elem School?

Based on loaded state assessment records, Southbury Elem School has 57% math proficiency (multi-year average, 2009-2021) and 56% reading/ELA proficiency (multi-year average, 2009-2022).

Is Southbury Elem School a charter school?

No, Southbury Elem School is not a charter school. It is a traditional public school operated by the local school district.

Is Southbury Elem School a Title I school?

No, Southbury Elem School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Southbury Elem School?

20.8% of students at Southbury Elem School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
Kindergarten – 5th
Enrollment
605
Student-Teacher Ratio
15.5:1
Teachers (FTE)
39
Type
regular
Setting
Large Suburb
County
Kendall County
Chronic Absenteeism (SY 2022-23)
16.0%
Area population (ZIP 60543)
41,723
Area average commute
30 min
Area median age
39.2
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2021 EdFacts · Low confidence
  • Older source: 2021 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2022 EdFacts · Low confidence
  • Older source: 2022 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 60543; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2021, multi-year average, 2009-2022; directory SY 2023–24

About our data · How we calculate scores

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