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SCHOOL COMMUNITY·CHICAGO PUBLIC SCHOOLS DIST 299·NCES 170993006399

Sadlowski Elementary School

3930 E 105th St, Chicago, IL 60617 · (773) 535-8040 · Cook County
GRADES PK–08ELEMENTARY11-CITYTITLE IREGULAR SCHOOL655 STUDENTS
Enrollment
655
Elementary
DISTRICT 463 · STATE 381
Student : Teacher
13.1:1
50 FTE teachers
DISTRICT 14.6:1 · STATE 13.9:1
Free / Reduced Lunch
83%
545 students
DISTRICT 78% · STATE 56%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Pre-K
69
Kindergarten
60
Grade 1
66
Grade 2
69
Grade 3
72
Grade 4
64
Grade 5
60
Grade 6
68
Grade 7
51
Grade 8
76
Student demographics
White
4%
DISTRICT 11% · STATE 45%
Hispanic
90%
DISTRICT 47% · STATE 29%
Black
5%
DISTRICT 34% · STATE 16%
Asian
0%
DISTRICT 5% · STATE 6%
Two+
0%
DISTRICT 2% · STATE 5%
Native American
n/r
Pacific Islander
n/r
n/r: not reliably reported by NCES for this school. Hispanic, Pacific Islander, and Native American enrollment are systematically under-reported in the source data.
Gender split
Male
55%
Female
45%

Discussions

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
26.1%
IL avg 51.0% . +15.6pp since 2023
Math
18.7%
IL avg 37.9% . +13.0pp since 2023
Source: IAR + ISA. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
22.9%
composite math + reading, all grades
Predicted
23.5%
based on IL schools with similar FRL share
Beats by
-0.6pp
below demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
655
+138 (+27%) vs 2017
% White
4%
was 2%
% Hispanic
90%
was 96%
% Black
5%
was 2%
Source: NCES Common Core of Data

About Sadlowski Elementary School

Set in Chicago, Illinois, Sadlowski Elementary School is a roomy K-5 school, overseen by Chicago Public Schools Dist 299. It hosts 655 students across grades pre-K through 8. Enrollment runs roughly 72% larger than the state mean of about 381.

Chicago Public Schools Dist 299 runs 622 schools in total, collectively educating 324,396 students. Sadlowski Elementary School is one of those campuses.

Demographically, Sadlowski Elementary School lists that nearly all students (90%) are Hispanic; the rest reads as 5% Black, 4% White. By comparison, Cook County as a whole is about 27% Hispanic, so the school skews considerably more Hispanic than its surroundings.

On the resource side, The school lists 50 full-time-equivalent teachers, for a student-teacher ratio near 13.1:1. That figure is tighter than the state norm's 13.9:1 average. Roughly 83% of students at Sadlowski Elementary School qualify for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is higher than Cook County's rate of about 66%.

On a demographically-adjusted basis, Sadlowski Elementary School tracks the demographic baseline. The model predicts 23.5% given the school's FRL share; actual proficiency is 22.9%.

Across the wider county, census data for Cook County shows median household earnings sit near $83,498, roughly 43% of adults have completed at least a four-year degree, and roughly 10% of residents live below the federal poverty line. Sadlowski Elementary School is one of 1406 public schools in Cook County (combined enrollment of about 697,934 students).

The closest other public school is Gallistel Elem Language Academy, roughly 0.4 miles away. Within five miles, there are 8 other public schools. On composite proficiency, Sadlowski Elementary School comes 5th of 9 in the immediate cluster, behind the nearby-schools average of 25.1%.

The school occupies a high-density site.

Trend over the last 7 years. Looking back 7 years, enrollment at Sadlowski Elementary School has expanded 27%, going from 517 students in 2018 to 655 in 2025. Over the same period, the Hispanic share decreased from 96% to 90%.

Within the allk12 community for this school, members of the Sadlowski Elementary School community share and discuss open house dates, ride-share offers, and field-trip permission slips. Anyone with firsthand experience at this school can post or comment.

Cook County at a glance

View full county profile
Population
5,182,090
Census ACS
Median income
$83,498
Household, ACS
Bachelor's+
43%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
1,406
697,934 students

Quick facts

School name
Sadlowski Elementary School
District
Chicago Public Schools Dist 299
Address
3930 E 105th St, Chicago, IL 60617
Phone
(773) 535-8040
County
Cook County
Level
Elementary
Grade range
PK–08
Total enrollment
655
Teachers (FTE)
50
Student–teacher ratio
13.1:1
Free/Reduced lunch
545 (83%)
Locale
11-City: Large
NCES ID
170993006399
Charter school
No
Virtual school
No

Related schools

Other schools in Chicago Public Schools Dist 299
Other schools in Chicago
Nearby schools

Frequently asked questions

About Sadlowski Elementary School
How many students attend Sadlowski Elementary School?
Sadlowski Elementary School enrolls approximately 655 students in grades PK-08.
What grades does Sadlowski Elementary School serve?
Sadlowski Elementary School serves grades PK-08.
How many teachers does Sadlowski Elementary School have?
Sadlowski Elementary School employs 50 FTE teachers, for a student-to-teacher ratio of 13.1:1.
How diverse is Sadlowski Elementary School?
Sadlowski Elementary School reports a student body of 4% White, 90% Hispanic, 5% Black, 0% Asian, 0% Two or more.
Is Sadlowski Elementary School public or private?
Sadlowski Elementary School is a public K-12 school, overseen by Chicago Public Schools Dist 299.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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