Pliocene Ridge Elementary School (Closed 2008)

1999 Ridge Rd.
North San Juan, CA 95960

Pliocene Ridge Elementary School serves 4 students in grades Kindergarten-4.

Minority enrollment was 50% of the student body (majority American Indian), which was lower than the California state average of 80% (majority Hispanic).

School Overview

Grades Offered

Grades Kindergarten-4

View Data

Distribution of Students By Grade Trends
Grade	Pliocene Ridge Elementary School
Kind	1
1	1
3	1
4	1

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Total Students

4 students

View Data

Total Students Trends Over Years (1989-2024)
Year	Pliocene Ridge Elementary School
2024	4
2023	4
2022	4
2021	4
2020	4
2019	4
2018	4
2017	4
2016	4
2015	4
2006	4
2005	25
2004	14
2003	25
2002	35
2001	45
2000	29
1999	31
1998	58
1997	68
1996	63
1995	63
1994	63
1993	55
1992	28
1991	30
1990	35
1989	38

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Total Classroom Teachers (05-06)

1 teacher

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Total Classroom Teachers Trends Over Years (1988-2006)
Year	Pliocene Ridge Elementary School
2006	1
2005	3
2004	2
2003	2
2002	3
2001	2
2000	2
1999	2
1998	4
1997	3
1996	3
1995	3
1994	2
1993	2
1992	2
1991	2
1990	2
1989	2
1988	2

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School Rankings

This School

State Level (CA)

Student-Teacher Ratio

n/a

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1988-2006)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2006	4:1	22:1	16:1
2005	8:1	22:1	15:1
2004	7:1	22:1	16:1
2003	13:1	21:1	16:1
2002	12:1	21:1	16:1
2001	23:1	21:1	22:1
2000	15:1	22:1	16:1
1999	16:1	22:1	16:1
1998	17:1	22:1	17:1
1997	23:1	24:1	17:1
1996	25:1	25:1	18:1
1995	21:1	25:1	18:1
1994	32:1	25:1	17:1
1993	28:1	25:1	18:1
1992	16:1	24:1	16:1
1991	18:1	24:1	16:1
1990	18:1	24:1	15:1
1989	19:1	24:1	14:1
1988	22:1	24:1	15:1

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American Indian

50%

View Data

American Indian Student Percentage Comparison Over Years (2000-2024)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2024	50%	1%
2023	50%	1%	3%
2022	50%	1%	2%
2020	50%	1%	3%
2019	50%	1%	3%
2018	50%	1%	2%
2017	50%	1%	2%
2016	50%	1%	2%
2015	50%	1%	2%
2006	50%	1%	4%
2005	12%	2%	3%
2003	12%	2%	3%
2002	6%	2%	4%
2001	9%	2%	4%
2000	7%	1%	2%

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Asian

n/a

12%

View Data

Asian Student Percentage Comparison Over Years (1993-1999)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
1999	3%	11%	3%
1998	5%	11%	3%
1997	3%	11%	1%
1993	2%	11%	1%

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Hispanic

n/a

56%

View Data

Hispanic Student Percentage Comparison Over Years (1988-2005)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2005	16%	47%	10%
2004	43%	46%	10%
2003	12%	45%	7%
2002	9%	44%	7%
2001	9%	43%	24%
2000	7%	42%	16%
1999	6%	41%	5%
1998	2%	40%	8%
1997	1%	40%	7%
1988	5%	30%	5%

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Black

n/a

View Data

Black Student Percentage Comparison Over Years (1998-2001)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2001	4%	8%	5%
2000	3%	9%	6%
1999	6%	9%	1%
1998	5%	9%	1%

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White

50%

20%

View Data

White Student Percentage Comparison Over Years (1989-2024)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2024	50%	20%
2023	50%	21%	76%
2022	50%	21%	75%
2021	50%	22%	76%
2020	50%	23%	72%
2019	50%	23%	72%
2018	50%	24%	81%
2017	50%	24%	81%
2016	50%	24%	80%
2015	50%	24%	79%
2006	50%	31%	84%
2005	72%	31%	84%
2004	57%	32%	85%
2003	76%	34%	87%
2002	85%	35%	87%
2001	78%	36%	65%
2000	83%	37%	71%
1999	81%	38%	90%
1998	88%	39%	86%
1997	96%	39%	90%
1996	100%	40%	91%
1995	100%	41%	91%
1994	100%	42%	91%
1993	98%	43%	92%
1992	100%	44%	92%
1991	100%	45%	91%
1990	100%	47%	92%
1989	100%	49%	93%

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Hawaiian

n/a

Two or more races

n/a

All Ethnic Groups

0.51

0.63

View Data

Diversity Score Comparison Over Years (1993-2024)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2024	0.51	0.63
2023	0.51	0.64	0.40
2022	0.51	0.63	0.42
2021	0.51	0.62	0.40
2020	0.51	0.63	0.45
2019	0.51	0.63	0.45
2018	0.51	0.64	0.33
2017	0.51	0.64	0.33
2016	0.51	0.64	0.35
2015	0.51	0.64	0.36
2006	0.51	0.66	0.27
2005	0.45	0.67	0.27
2004	0.50	0.67	0.28
2003	0.40	0.67	0.24
2002	0.26	0.67	0.23
2001	0.38	0.67	0.52
2000	0.30	0.67	0.47
1999	0.34	0.67	0.18
1998	0.22	0.67	0.25
1997	0.08	0.67	0.19
1993	0.04	0.67	0.14

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Eligible for

25%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1995-2024)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2024	25%	54%
2023	25%	51%	34%
2022	25%	51%	37%
2021	25%	53%	40%
2020	25%	52%	39%
2019	25%	52%	39%
2018	25%	49%	29%
2017	25%	49%	29%
2016	25%	50%	30%
2015	25%	50%	30%
2006	25%	40%	26%
2005	20%	40%	24%
2004	57%	40%	24%
2003	60%	39%	25%
2001	13%	39%	8%
2000	45%	40%	6%
1999	52%	40%	4%
1998	43%	47%	19%
1997	51%	47%	39%
1996	52%	46%	32%
1995	46%	45%	35%

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Eligible for (04-05)

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (1999-2005)
Year	Pliocene Ridge Elementary School	California	Sierra-Plumas Joint Unified School District
2005	8%	9%	11%
2004	14%	9%	9%
2001	9%	8%	5%
2000	17%	7%	2%
1999	32%	7%	2%

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School Statewide Testing

School District Name

Sierra-Plumas Joint Unified School District

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

Frequently Asked Questions

How many students attend Pliocene Ridge Elementary School?

4 students attend Pliocene Ridge Elementary School.

What is the racial composition of the student body?

50% of Pliocene Ridge Elementary School students are American Indian, and 50% of students are White.

What grades does Pliocene Ridge Elementary School offer ?

Pliocene Ridge Elementary School offers enrollment in grades Kindergarten-4

What school district is Pliocene Ridge Elementary School part of?

Pliocene Ridge Elementary School is part of Sierra-Plumas Joint Unified School District.

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School Overview

Distribution of Students By Grade Trends

Total Students Trends Over Years (1989-2024)

Total Classroom Teachers Trends Over Years (1988-2006)

School Rankings

Student-Teacher Ratio Comparison Over Years (1988-2006)

American Indian Student Percentage Comparison Over Years (2000-2024)

Asian Student Percentage Comparison Over Years (1993-1999)

Hispanic Student Percentage Comparison Over Years (1988-2005)

Black Student Percentage Comparison Over Years (1998-2001)

White Student Percentage Comparison Over Years (1989-2024)

Diversity Score Comparison Over Years (1993-2024)

Free Lunch Eligibility Comparison Over Years (1995-2024)

Reduced-Price Lunch Eligibility Comparison Over Years (1999-2005)

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