Jefferson High School (Ranked Bottom 50% for 2025-26)

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Jefferson High School

4145 Samuelson Rd
Rockford, IL 61109

( shown in map)

Bottom 50%

Thomas Jefferson High School is a public coed four-year high school, in Rockford, Illinois, United States. The school serves the city of Rockford and the neighboring villages of Cherry Valley, Illinois and New Milford, Illinois. The school is named after the third President of the United States, Thomas Jefferson.

Serving 2,170 students in grades 9-12, Jefferson High School ranks in the bottom 50% of all schools in Illinois for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).

The percentage of students achieving is 2% (which is lower than the Illinois state average of 27%). The percentage of students achieving is 6% (which is lower than the Illinois state average of 30%).

The student-teacher ratio of 19:1 is higher than the Illinois state level of 13:1.

Minority enrollment is 82% of the student body (majority Hispanic), which is higher than the Illinois state average of 55% (majority Hispanic).

Quick Facts (2025-26)

Grades: 9-12
Enrollment: 2,170 students
Student-Teacher Ratio: 19:1
Minority Enrollment: 82%
: 72% (Btm 50% in IL)
: Bottom 50%
: 2% (Btm 50%)
: 6% (Btm 50%)
: 31% (Btm 50%)
Source: National Center for Education Statistics (NCES), IL Dept. of Education

Top Rankings

Jefferson High School ranks among the top 20% of public schools in Illinois for:

School Overview

Jefferson High School's student population of 2,170 students has grown by 26% over five school years.

The teacher population of 112 teachers has grown by 12% over five school years.

Grades Offered

Grades 9-12

View Data

Distribution of Students By Grade Trends
Grade	Jefferson High School
9	683
10	607
11	473
12	407

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Total Students

2,170 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Jefferson High School
2023	2,114
2022	2,111
2021	1,979
2020	1,718
2019	1,718
2018	1,633
2017	1,633
2016	1,692
2015	1,704
2014	1,758
2013	1,750
2012	1,720
2011	1,779
2010	1,862
2009	1,932
2008	2,085
2007	2,010
2006	1,964
2005	1,924
2004	1,807
2003	1,766
2002	1,787
2001	1,714
2000	1,614
1999	1,603
1998	1,557
1997	1,509
1996	1,502
1995	1,514
1994	1,587
1993	1,728
1992	1,801
1991	1,859
1990	2,035
1989	1,847
1988	1,973
1987	2,076

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Gender %

Total Classroom Teachers

112 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	Jefferson High School
2023	92
2022	98
2020	100
2019	100
2018	100
2017	100
2016	106
2015	102
2014	101
2013	106
2012	88
2011	101
2010	105
2009	109
2008	87
2007	86
2006	100
2005	95
2004	92
2003	98
2002	95
2001	89
2000	78
1999	81
1998	81
1997	80
1996	87
1995	88
1994	97
1993	98
1992	109
1991	113
1990	111

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Year Founded

1969

Colors

White, Red, Gold

Last Day of School

Mon. May 25, 2026

School Rankings

Jefferson High School ranks within the bottom 50% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).

The of Jefferson High School is 0.63, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.

This School

State Level (IL)

#3483 out of 3542 schools
(Bottom 50%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Jefferson High School
2023	#3483
2022	#3395
2021	#3600
2019	#3072
2018	#3222
2017	#3217
2016	#3280
2015	#2959
2014	#3149
2013	#3340
2012	#3593

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27%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	2%	27%	13%
2021	3%	28%	12%
2019	11%	33%	14%
2018	10%	32%	13%
2017	11%	32%	15%
2016	6%	31%	16%
2015	15%	29%	17%
2014	29%	59%	43%
2013	29%	58%	41%
2012	28%	80%	68%
2011	30%	80%	68%

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30%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2022	6%	30%	16%
2021	9%	32%	16%
2019	18%	38%	19%
2018	14%	37%	13%
2017	16%	38%	20%
2016	16%	36%	23%
2015	13%	38%	28%
2014	35%	57%	39%
2013	36%	58%	41%
2012	32%	75%	60%
2011	32%	75%	60%

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31%

50%

Student-Teacher Ratio

19:1

13:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	23:1	14:1	17:1
2022	22:1	14:1	17:1
2020	17:1	15:1	17:1
2019	17:1	15:1	17:1
2018	16:1	16:1	16:1
2017	16:1	15:1	16:1
2016	16:1	16:1	16:1
2015	17:1	16:1	16:1
2014	17:1	16:1	16:1
2013	17:1	13:1	19:1
2012	20:1	16:1	17:1
2011	18:1	16:1	17:1
2010	18:1	16:1	17:1
2009	18:1	16:1	18:1
2008	24:1	18:1	20:1
2007	23:1	17:1	19:1
2006	20:1	16:1	19:1
2005	20:1	16:1	19:1
2004	20:1	17:1	18:1
2003	18:1	16:1	17:1
2002	19:1	16:1	17:1
2001	19:1	16:1	16:1
2000	21:1	16:1	17:1
1999	20:1	16:1	17:1
1998	19:1	17:1	17:1
1997	19:1	17:1	17:1
1996	17:1	17:1	16:1
1995	17:1	17:1	17:1
1994	16:1	18:1	17:1
1993	18:1	18:1	18:1
1992	16:1	17:1	17:1
1991	16:1	17:1	17:1
1990	18:1	18:1	17:1

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American Indian

n/a

Asian

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	2%	6%	5%
2022	2%	5%	5%
2021	3%	5%	5%
2020	3%	5%	5%
2019	3%	5%	5%
2018	2%	5%	4%
2017	2%	5%	4%
2016	2%	5%	4%
2015	2%	6%	4%
2014	3%	5%	4%
2013	3%	5%	4%
2012	3%	4%	4%
2011	4%	5%	4%
2010	4%	5%	5%
2009	5%	5%	5%
2008	5%	5%	5%
2007	5%	5%	5%
2006	4%	5%	5%
2005	4%	5%	4%
2004	4%	4%	4%
2003	4%	4%	3%
2002	4%	4%	4%
2001	4%	4%	3%
2000	4%	3%	3%
1999	4%	3%	3%
1998	3%	3%	3%
1997	3%	3%	3%
1996	3%	3%	3%
1995	3%	3%	3%
1994	3%	3%	3%
1993	3%	3%	3%
1992	2%	3%	3%
1991	2%	3%	3%

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Hispanic

55%

28%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	55%	27%	31%
2022	51%	27%	29%
2021	51%	27%	29%
2020	46%	26%	27%
2019	46%	26%	27%
2018	41%	26%	27%
2017	41%	26%	27%
2016	40%	26%	27%
2015	38%	25%	27%
2014	36%	25%	26%
2013	36%	24%	26%
2012	36%	24%	26%
2011	29%	23%	25%
2010	26%	22%	25%
2009	25%	22%	25%
2008	21%	21%	24%
2007	20%	20%	23%
2006	18%	19%	21%
2005	15%	18%	20%
2004	12%	18%	18%
2003	11%	17%	17%
2002	11%	16%	16%
2001	10%	15%	15%
2000	10%	15%	12%
1999	10%	14%	12%
1998	8%	13%	11%
1997	8%	13%	9%
1996	7%	12%	8%
1995	6%	12%	7%
1994	6%	11%	6%
1993	6%	11%	6%
1992	5%	10%	5%
1991	4%	10%	5%

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Black

20%

17%

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	19%	17%	31%
2022	21%	17%	32%
2021	20%	17%	31%
2020	21%	17%	32%
2019	21%	17%	32%
2018	24%	17%	31%
2017	24%	17%	31%
2016	23%	17%	31%
2015	24%	17%	31%
2014	22%	17%	30%
2013	21%	18%	30%
2012	19%	18%	30%
2011	22%	18%	30%
2010	26%	20%	32%
2009	27%	20%	32%
2008	29%	20%	31%
2007	28%	20%	31%
2006	29%	20%	31%
2005	28%	20%	31%
2004	29%	21%	32%
2003	29%	21%	32%
2002	29%	21%	31%
2001	27%	21%	31%
2000	24%	21%	31%
1999	23%	21%	29%
1998	22%	21%	28%
1997	20%	20%	27%
1996	19%	21%	26%
1995	19%	20%	25%
1994	19%	21%	24%
1993	19%	21%	23%
1992	20%	21%	23%
1991	19%	21%	22%

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White

18%

45%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	19%	45%	26%
2022	21%	47%	27%
2021	21%	47%	28%
2020	25%	48%	29%
2019	25%	48%	29%
2018	29%	49%	31%
2017	29%	49%	31%
2016	31%	49%	32%
2015	32%	49%	32%
2014	34%	50%	33%
2013	36%	50%	34%
2012	37%	51%	34%
2011	41%	51%	35%
2010	44%	53%	38%
2009	43%	53%	38%
2008	45%	54%	40%
2007	47%	55%	41%
2006	49%	56%	43%
2005	53%	57%	45%
2004	55%	57%	46%
2003	56%	58%	48%
2002	56%	59%	49%
2001	59%	60%	51%
2000	62%	61%	54%
1999	63%	62%	56%
1998	67%	63%	58%
1997	69%	64%	61%
1996	71%	64%	63%
1995	72%	65%	65%
1994	72%	65%	67%
1993	72%	65%	68%
1992	73%	66%	69%
1991	75%	66%	70%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	5%	4%	7%
2022	5%	4%	7%
2021	5%	4%	7%
2020	5%	4%	7%
2019	5%	4%	7%
2018	4%	3%	7%
2017	4%	3%	7%
2016	4%	3%	6%
2015	4%	3%	6%
2014	5%	3%	7%
2013	4%	3%	6%

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All Ethnic Groups

0.63

0.69

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	0.63	0.70	0.73
2022	0.66	0.68	0.73
2021	0.66	0.68	0.73
2020	0.69	0.68	0.73
2019	0.69	0.68	0.73
2018	0.70	0.67	0.72
2017	0.70	0.67	0.72
2016	0.70	0.67	0.73
2015	0.70	0.67	0.72
2014	0.71	0.66	0.73
2013	0.71	0.66	0.73
2012	0.70	0.65	0.73
2011	0.70	0.66	0.73
2010	0.69	0.64	0.68
2009	0.69	0.64	0.68
2008	0.67	0.64	0.68
2007	0.67	0.63	0.67
2006	0.65	0.61	0.67
2005	0.62	0.61	0.66
2004	0.60	0.60	0.66
2003	0.59	0.59	0.65
2002	0.59	0.59	0.64
2001	0.57	0.58	0.63
2000	0.55	0.57	0.62
1999	0.54	0.56	0.60
1998	0.50	0.56	0.58
1997	0.48	0.54	0.56
1996	0.46	0.53	0.54
1995	0.45	0.53	0.52
1994	0.45	0.52	0.50
1993	0.45	0.52	0.49
1992	0.43	0.52	0.47
1991	0.40	0.52	0.46

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72%

87%

View Data

Graduation Rate Comparison Over Years (2011-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	72%	87%	69%
2022	68%	87%	65%
2018	77%	87%	65%
2017	76%	87%	67%
2016	63%	85%	65%
2015	61%	85%	67%
2014	67%	86%	68%
2013	66%	83%	64%
2012	59%	82%	62%
2011	74%	83%	72%

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Eligible for

38%

43%

View Data

Free Lunch Eligibility Comparison Over Years (2003-2023)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2023	39%	43%	51%
2022	39%	43%	51%
2021	41%	44%	52%
2020	69%	47%	64%
2019	69%	47%	64%
2018	50%	46%	54%
2017	50%	46%	54%
2016	61%	47%	59%
2015	84%	52%	78%
2014	78%	47%	74%
2013	76%	45%	73%
2012	33%	21%	39%
2011	69%	39%	69%
2010	63%	37%	65%
2009	60%	33%	64%
2008	54%	32%	62%
2007	52%	32%	61%
2006	48%	32%	59%
2005	44%	32%	57%
2004	41%	31%	51%
2003	37%	30%	51%

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Eligible for (14-15)

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2003-2015)
Year	Jefferson High School	Illinois	Rockford SD 205 School District
2015	3%	2%	4%
2014	3%	3%	4%
2013	4%	5%	6%
2012	47%	27%	39%
2011	8%	5%	7%
2010	9%	6%	9%
2009	11%	6%	10%
2008	9%	6%	9%
2007	10%	6%	10%
2006	9%	6%	9%
2005	10%	5%	10%
2004	7%	5%	9%
2003	9%	5%	10%

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School Statewide Testing

School District Name

Rockford SD 205 School District

Source: National Center for Education Statistics (NCES), IL Dept. of Education

Frequently Asked Questions

What is Jefferson High School's ranking?

Jefferson High School is ranked #3483 out of 3,542 schools, which ranks it among the bottom 50% of public schools in Illinois.

What schools are Jefferson High School often compared to?

Jefferson High Schoolis often viewed alongside schools like Guilford High School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

2% of students have achieved math proficiency (compared to the 27% IL state average), while 6% of students have achieved reading proficiency (compared to the 30% IL state average).

What is the graduation rate of Jefferson High School?

The graduation rate of Jefferson High School is 72%, which is lower than the Illinois state average of 87%.

How many students attend Jefferson High School?

2,170 students attend Jefferson High School.

What is the racial composition of the student body?

55% of Jefferson High School students are Hispanic, 20% of students are Black, 18% of students are White, 4% of students are Two or more races, 2% of students are Asian, and 1% of students are American Indian.

What is the student-teacher ratio of Jefferson High School?

Jefferson High School has a student ration of 19:1, which is higher than the Illinois state average of 13:1.

What grades does Jefferson High School offer ?

Jefferson High School offers enrollment in grades 9-12

What school district is Jefferson High School part of?

Jefferson High School is part of Rockford SD 205 School District.

School Calendar

View the Jefferson High School below. Note key dates such as:

Event

Date

Thanksgiving Break - No School

November 24, 2025 (Monday)

Spring Break - No School

March 30, 2026 (Monday)

Spring Break - No School

April 01, 2026 (Wednesday)

Grade 12: Last Day of School

May 08, 2026 (Friday)

Early Childhood: Last Day of School

May 20, 2026 (Wednesday)

School Reviews

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Quick Facts (2025-26)

Grades: 9-12
Enrollment: 2,170 students
Student-Teacher Ratio: 19:1
Minority Enrollment: 82%
: 72% (Btm 50%)
: Bottom 50%
: 2% (Btm 50%)
: 6% (Btm 50%)
: 31% (Btm 50%)
Source: National Center for Education Statistics (NCES), IL Dept. of Education