Katherine Elementary School (Ranked Top 30% for 2025-26)

5455 Katherine St.
Simi Valley, CA 93063

( shown in map)

Top 30%

Serving 314 students in grades Kindergarten-6, Katherine Elementary School ranks in the top 30% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).

The percentage of students achieving is 40-44% (which is higher than the California state average of 34%). The percentage of students achieving is 60-64% (which is higher than the California state average of 47%).

The student-teacher ratio of 26:1 is higher than the California state level of 21:1.

Minority enrollment is 67% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Facts (2025-26)

Grades: Kindergarten-6
Enrollment: 314 students
Student-Teacher Ratio: 26:1
Minority Enrollment: 67%
: Top 30% in CA
: 40-44% (Top 50%)
: 60-64% (Top 30%)
: 40-49% (Top 30%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

School Overview

Katherine Elementary School's student population of 314 students has declined by 11% over five school years.

The teacher population of 12 teachers has declined by 14% over five school years.

Grades Offered

Grades Kindergarten-6

View Data

Distribution of Students By Grade Trends
Grade	Katherine Elementary School
Kind	72
1	50
2	32
3	47
4	48
5	51
6	13
7	1

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Total Students

314 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Katherine Elementary School
2023	351
2022	312
2021	316
2020	355
2019	355
2018	368
2017	368
2016	364
2015	386
2014	403
2013	439
2012	468
2011	436
2010	463
2009	515
2008	500
2007	529
2006	536
2005	525
2004	512
2003	510
2002	605
2001	615
2000	578
1999	511
1998	482
1997	466
1996	421
1995	438
1994	497
1993	474
1992	503
1991	497
1990	519
1989	499
1988	493
1987	465

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Gender %

Total Classroom Teachers

12 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	Katherine Elementary School
2023	13
2022	13
2021	14
2020	14
2019	14
2018	13
2017	13
2016	14
2015	14
2014	15
2013	16
2012	18
2010	18
2009	22
2008	24
2007	23
2006	24
2005	23
2004	23
2003	23
2002	31
2001	28
2000	26
1999	24
1998	21
1997	20
1996	16
1995	17
1994	20
1993	17
1992	17
1991	17
1990	17

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Year Founded

1905

School Calendar

School Rankings

Katherine Elementary School ranks within the top 30% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).

The of Katherine Elementary School is 0.65, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CA)

#2274 out of 9523 schools
(Top 30%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	Katherine Elementary School
2023	#2274
2022	#2020
2021	#1543
2019	#4232
2018	#4710
2017	#3504
2016	#3550
2015	#3941
2013	#2442
2012	#2459
2011	#1946

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40-44%

34%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	42%	34%	37%
2022	47%	33%	35%
2021	37%	34%	36%
2019	42%	40%	43%
2018	32%	39%	43%
2017	42%	38%	42%
2016	37%	37%	42%
2015	34%	34%	42%
2013	74%	59%	66%
2012	68%	59%	67%
2011	72%	58%	66%

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60-64%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2022	62%	47%	50%
2021	52%	49%	49%
2019	47%	51%	54%
2018	47%	50%	43%
2017	50%	48%	55%
2016	52%	48%	54%
2015	40%	44%	52%
2013	61%	57%	66%
2012	69%	58%	69%
2011	68%	56%	69%
2010	65%	54%	67%

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40-49%

29%

View Data

Science Proficiency Comparison Over Years (2021-2022)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2022	44%	29%	30%
2021	34%	28%	32%

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Student-Teacher Ratio

26:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	27:1	22:1	22:1
2022	24:1	21:1	23:1
2021	23:1	22:1	23:1
2020	25:1	23:1	23:1
2019	25:1	23:1	23:1
2018	28:1	23:1	25:1
2017	28:1	23:1	25:1
2016	26:1	24:1	25:1
2015	28:1	24:1	25:1
2014	27:1	24:1	25:1
2013	27:1	24:1	24:1
2012	26:1	23:1	25:1
2010	26:1	21:1	24:1
2009	23:1	20:1	23:1
2008	21:1	18:1	20:1
2007	23:1	21:1	23:1
2006	22:1	20:1	23:1
2005	23:1	21:1	24:1
2004	22:1	21:1	23:1
2003	22:1	20:1	23:1
2002	20:1	20:1	22:1
2001	22:1	20:1	22:1
2000	22:1	21:1	23:1
1999	21:1	21:1	23:1
1998	23:1	21:1	24:1
1997	23:1	23:1	24:1
1996	26:1	25:1	26:1
1995	27:1	25:1	26:1
1994	25:1	25:1	25:1
1993	28:1	25:1	25:1
1992	29:1	24:1	26:1
1991	29:1	24:1	26:1
1990	31:1	24:1	25:1

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American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (1989-2013)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2013	1%	1%	1%
2012	1%	1%	1%
2011	1%	1%	1%
2010	1%	1%	1%
2009	2%	1%	1%
2008	1%	1%	1%
2007	3%	2%	1%
2006	3%	1%	2%
2005	3%	2%	1%
2004	2%	2%	1%
2003	2%	2%	1%
2002	2%	2%	1%
2001	1%	2%	2%
2000	1%	1%	1%
1999	1%	1%	1%
1998	1%	1%	2%
1997	1%	1%	1%
1996	1%	1%	1%
1995	1%	1%	1%
1994	1%	1%	2%
1993	1%	1%	1%
1992	2%	1%	2%
1991	2%	1%	3%
1990	2%	1%	2%
1989	1%	1%	2%

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Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	10%	12%	10%
2022	8%	12%	10%
2021	8%	12%	10%
2020	9%	12%	10%
2019	9%	12%	10%
2018	6%	11%	11%
2017	6%	11%	11%
2016	9%	11%	10%
2015	10%	11%	10%
2014	10%	11%	10%
2013	9%	11%	9%
2012	11%	11%	9%
2011	11%	11%	9%
2010	10%	11%	9%
2009	10%	11%	9%
2008	11%	12%	9%
2007	12%	12%	9%
2006	13%	12%	8%
2005	12%	12%	8%
2004	9%	12%	8%
2003	8%	11%	8%
2002	9%	11%	7%
2001	10%	11%	7%
2000	10%	11%	7%
1999	10%	11%	7%
1998	9%	11%	7%
1997	8%	11%	7%
1996	10%	11%	7%
1995	10%	11%	7%
1994	11%	11%	7%
1993	11%	11%	7%
1992	10%	11%	6%
1991	10%	11%	6%

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Hispanic

48%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	46%	55%	43%
2022	43%	56%	42%
2021	41%	56%	40%
2020	33%	55%	38%
2019	33%	55%	38%
2018	30%	54%	36%
2017	30%	54%	36%
2016	32%	54%	36%
2015	33%	54%	34%
2014	32%	53%	32%
2013	31%	53%	31%
2012	26%	52%	29%
2011	23%	51%	28%
2010	24%	50%	27%
2009	21%	49%	24%
2008	20%	50%	25%
2007	18%	49%	24%
2006	18%	48%	22%
2005	19%	47%	21%
2004	17%	46%	20%
2003	16%	45%	19%
2002	18%	44%	19%
2001	16%	43%	18%
2000	16%	42%	18%
1999	18%	41%	18%
1998	17%	40%	17%
1997	18%	40%	17%
1996	17%	39%	17%
1995	13%	38%	16%
1994	20%	37%	15%
1993	18%	36%	15%
1992	15%	35%	13%
1991	15%	34%	12%

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Black

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	2%	5%	1%
2022	2%	5%	1%
2021	1%	5%	1%
2020	2%	5%	1%
2019	2%	5%	1%
2018	1%	6%
2017	1%	6%
2016	1%	6%
2015	1%	6%
2014	2%	6%	1%
2013	2%	6%	1%
2012	1%	6%	1%
2011	1%	7%	1%
2010	1%	7%	2%
2009	1%	7%	1%
2008	1%	8%	1%
2007	1%	8%	2%
2006	1%	8%	2%
2005	2%	8%	2%
2004	2%	8%	1%
2003	2%	8%	2%
2002	2%	8%	2%
2001	2%	8%	2%
2000	3%	9%	2%
1999	2%	9%	2%
1998	3%	9%	2%
1997	2%	9%	2%
1996	3%	9%	2%
1995	8%	9%	2%
1994	5%	9%	2%
1993	3%	9%	2%
1992	3%	9%	2%
1991	4%	9%	2%

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White

33%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	37%	21%	41%
2022	39%	21%	42%
2021	43%	22%	44%
2020	50%	23%	46%
2019	50%	23%	46%
2018	58%	24%	49%
2017	58%	24%	49%
2016	55%	24%	51%
2015	54%	24%	53%
2014	53%	25%	54%
2013	53%	25%	56%
2012	58%	26%	58%
2011	60%	27%	59%
2010	61%	27%	60%
2009	62%	28%	62%
2008	67%	29%	64%
2007	66%	29%	64%
2006	65%	31%	66%
2005	64%	31%	68%
2004	70%	32%	70%
2003	72%	34%	70%
2002	69%	35%	71%
2001	71%	36%	71%
2000	70%	37%	72%
1999	69%	38%	72%
1998	70%	39%	72%
1997	71%	39%	73%
1996	69%	40%	73%
1995	68%	41%	74%
1994	63%	42%	74%
1993	67%	43%	75%
1992	70%	44%	77%
1991	69%	45%	77%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2009-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	5%	6%	5%
2022	8%	5%	5%
2021	7%	5%	5%
2020	6%	4%	5%
2019	6%	4%	5%
2018	5%	4%	4%
2017	5%	4%	4%
2016	3%	4%	3%
2015	2%	3%	3%
2014	3%	3%	3%
2013	4%	3%	2%
2012	3%	3%	2%
2011	4%	2%	2%
2010	3%	3%	1%
2009	4%	3%	3%

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All Ethnic Groups

0.65

0.63

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	0.65	0.64	0.64
2022	0.66	0.63	0.64
2021	0.64	0.62	0.64
2020	0.64	0.63	0.64
2019	0.64	0.63	0.64
2018	0.57	0.64	0.62
2017	0.57	0.64	0.62
2016	0.59	0.64	0.61
2015	0.59	0.64	0.60
2014	0.61	0.65	0.60
2013	0.62	0.65	0.59
2012	0.60	0.65	0.58
2011	0.59	0.67	0.57
2010	0.56	0.67	0.56
2009	0.57	0.71	0.56
2008	0.50	0.65	0.52
2007	0.52	0.67	0.52
2006	0.54	0.66	0.51
2005	0.54	0.67	0.49
2004	0.48	0.67	0.47
2003	0.45	0.67	0.47
2002	0.49	0.67	0.46
2001	0.46	0.67	0.46
2000	0.47	0.67	0.45
1999	0.49	0.67	0.45
1998	0.48	0.67	0.45
1997	0.46	0.67	0.44
1996	0.49	0.67	0.43
1995	0.51	0.67	0.42
1994	0.55	0.67	0.42
1993	0.51	0.67	0.41
1992	0.48	0.67	0.39
1991	0.49	0.67	0.38

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Eligible for

43%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1992-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	39%	51%	33%
2022	35%	51%	30%
2021	27%	53%	27%
2020	31%	52%	28%
2019	31%	52%	28%
2018	24%	49%	24%
2017	24%	49%	24%
2016	25%	50%	23%
2015	21%	50%	22%
2014	23%	49%	23%
2013	21%	48%	21%
2011	19%	46%	22%
2010	20%	46%	19%
2009	20%	43%	18%
2008	16%	41%	16%
2007	15%	40%	15%
2006	14%	40%	16%
2005	11%	40%	13%
2004	12%	40%	12%
2003	11%	39%	12%
2002	14%	39%	11%
2001	13%	39%	11%
2000	14%	40%	12%
1999	14%	40%	11%
1998	23%	47%	17%
1997	23%	47%	17%
1996	22%	46%	16%
1995	18%	45%	15%
1994	23%	43%	15%
1993	19%	41%	14%
1992	17%	38%	12%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2002-2023)
Year	Katherine Elementary School	California	Simi Valley Unified School District
2023	11%	8%	9%
2022	7%	7%	9%
2021	4%	6%	2%
2020	6%	7%	6%
2019	6%	7%	6%
2018	6%	9%	6%
2017	6%	9%	6%
2016	6%	9%	6%
2015	11%	9%	6%
2014	14%	9%	8%
2013	10%	7%	7%
2011	11%	8%	6%
2010	9%	9%	7%
2009	6%	10%	7%
2008	10%	10%	6%
2007	7%	10%	6%
2006	9%	9%	7%
2005	9%	9%	6%
2004	7%	9%	6%
2003	5%	9%	5%
2002	5%	8%	5%

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School Statewide Testing

School District Name

Simi Valley Unified School District

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

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Katherine Elementary School's ranking?

Katherine Elementary School is ranked #2274 out of 9,523 schools, which ranks it among the top 30% of public schools in California.

What schools are Katherine Elementary School often compared to?

Katherine Elementary Schoolis often viewed alongside schools like White Oak Elementary School by visitors of our site.

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

40-44% of students have achieved math proficiency (compared to the 34% CA state average), while 60-64% of students have achieved reading proficiency (compared to the 47% CA state average).

How many students attend Katherine Elementary School?

314 students attend Katherine Elementary School.

What is the racial composition of the student body?

48% of Katherine Elementary School students are Hispanic, 33% of students are White, 9% of students are Asian, 7% of students are Two or more races, and 3% of students are Black.

What is the student-teacher ratio of Katherine Elementary School?

Katherine Elementary School has a student ration of 26:1, which is higher than the California state average of 21:1.

What grades does Katherine Elementary School offer ?

Katherine Elementary School offers enrollment in grades Kindergarten-6

What school district is Katherine Elementary School part of?

Katherine Elementary School is part of Simi Valley Unified School District.