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SCHOOL COMMUNITY·DOLTON SD 149·NCES 171242001490

Diekman Elem School

15121 Dorchester Ave, Dolton, IL 60419 · (708) 841-3838 · Cook County
GRADES PK–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL227 STUDENTS
Enrollment
227
Elementary
DISTRICT 296 · STATE 381
Student : Teacher
18.9:1
12 FTE teachers
DISTRICT 19.7:1 · STATE 13.9:1
Free / Reduced Lunch
98%
222 students
DISTRICT 99% · STATE 56%
Community
0
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
76
Kindergarten
11
Grade 1
25
Grade 2
18
Grade 3
28
Grade 4
34
Grade 5
35
Student demographics
Hispanic
157%
DISTRICT 5% · STATE 29%
Black
20992%
DISTRICT 93% · STATE 16%
Two+
21%
DISTRICT 1% · STATE 5%
Native American
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
12856%
Female
9944%

School pathway

Students here typically continue to
Diekman Elem SchoolCreative Communications AcadSchool of Fine ArtsS T E M Academy
Based on grade levels within Dolton SD 149. Attendance zones can vary; confirm enrollment with the district.

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Test scores

IAR + ISA 2024-25 . % Proficient (Levels 4-5)
English Language Arts
28.0%
IL avg 51.0% . +9.9pp since 2023
Math
18.3%
IL avg 37.9% . +11.4pp since 2023

What this means: On the IAR + ISA, Illinois's statewide test, about 28 of every 100 students at this school read and write at grade level and about 18 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 10 points since 2023, while math scores are up about 11 points.

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
20.4%
composite math + reading, all grades
Predicted
15.0%
based on IL schools with similar FRL share
Beats by
+5.3pp
above demographic expectation

What this means: About 20% of students here test proficient in math and reading, compared with the roughly 15% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.

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
227
-155 (-41%) vs 2017
Student : Teacher
18.9:1
was 17.4:1
% White
0%
was 1%
% Hispanic
7%
was 2%
% Black
92%
was 97%
Source: NCES Common Core of Data

About Diekman Elem School

Diekman Elem School is one of the tight-knit K-5 schools in Dolton, Illinois, one of the schools within Dolton SD 149, with 227 students on its rolls from grades pre-K through 5. By comparison, Illinois's public schools average about 381 students each, so Diekman Elem School sits 40% smaller than that benchmark.

Dolton SD 149 runs 8 schools in total, collectively educating 2,192 students. Diekman Elem School is one of those campuses.

For racial and ethnic makeup, Diekman Elem School records that 92% of students identify as Black, making the school strongly Black-majority. Beyond that, the school records 7% Hispanic. The wider county runs roughly 22% Black, putting the school's mix considerably more Black than the area baseline.

Looking at school resources, Staff filings list 12 full-time-equivalent teachers, which works out to roughly 18.9:1 students per teacher. That figure is higher than the state norm's 13.9:1 average. Around 98% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. Set against Cook County (around 66%), the school's rate is somewhat above typical.

On a demographically-adjusted basis, Diekman Elem School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 15.0%; this one delivers 20.4%.

Around the school, community-level numbers for Cook County indicate median household earnings sit near $83,498, about 43% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 10%. Diekman Elem School is one of 1406 public schools in Cook County (combined enrollment of about 697,934 students).

Nearest neighbor: Berger-Vandenberg Elem School, around 0.3 miles off. Counting just inside five miles, 8 other public schools cluster around Diekman Elem School. Ranking that nearby cluster on reported proficiency puts Diekman Elem School at 3rd of 9; the average score across the group is 15.6%.

Geographically, the school is in a suburban area.

Five-year trend. Diekman Elem School's enrollment has declined 41% since 2018, when it stood at 382 (now 227). Over the same period, the Black share fell from 97% to 92%. The student-to-teacher ratio loosened from 17.4:1 in 2018 to 18.9:1 today.

On the community side, the feed for Diekman Elem School typically covers fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.

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
Diekman Elem School
District
Dolton SD 149
Address
15121 Dorchester Ave, Dolton, IL 60419
Phone
(708) 841-3838
County
Cook County
Level
Elementary
Grade range
PK–05
Total enrollment
227
Teachers (FTE)
12
Student–teacher ratio
18.9:1
Free/Reduced lunch
222 (98%)
Locale
21-Suburb: Large
NCES ID
171242001490
Charter school
No
Virtual school
No

Related schools

Other schools in Dolton SD 149
Other schools in Dolton
Nearby schools

Frequently asked questions

About Diekman Elem School
How large is Diekman Elem School?
Diekman Elem School enrolls approximately 227 students in grades PK-05.
Is Diekman Elem School an elementary, middle, or high school?
Diekman Elem School is an elementary school covering grades PK-05.
How many teachers does Diekman Elem School have?
Diekman Elem School employs 12 FTE teachers, for a student-to-teacher ratio of 18.9:1.
How diverse is Diekman Elem School?
Diekman Elem School reports a student body of 7% Hispanic, 92% Black, 1% Two or more.
Who oversees Diekman Elem School?
Diekman Elem School is overseen by Dolton SD 149 in Cook County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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