Is Cinnabar Charter a good school?

Cinnabar Charter ranks in the bottom 14.9% of California elementary schools.

How many students attend Cinnabar Charter?

In the 2023-24 school year, 160 students attended Cinnabar Charter.

What is the racial makeup of Cinnabar Charter?

Students at Cinnabar Charter are 76% Hispanic, 18% White, 4% Two or more races, 1% African American.

What schools do graduates of Cinnabar Charter attend?

Students who attend Cinnabar Charter usually go on to attend: Middle : Petaluma Junior High High : Petaluma High

Cinnabar Charter

Summary:

Cinnabar Charter is a public charter elementary school serving grades K-8 in Petaluma, California, with 186 students. The school is part of the Cinnabar Elementary District, which is ranked 1456 out of 1568 districts in the state and has a 0-star rating from SchoolDigger.

Cinnabar Charter has seen a significant increase in chronic absenteeism, rising from 4.0% in 2017-2018 to 26.9% in 2021-2022, which is much higher than the nearby Cinnabar Elementary (43.5% in 2022-2023) and the state average. Academically, Cinnabar Charter's performance on Smarter Balanced Assessments is significantly below the state averages across all grade levels and subjects, with only 25% of students proficient or better in English Language Arts/Literacy and 15.52% in Mathematics, compared to the state averages of 47.04% and 35.54%, respectively. The school's performance is particularly low for male students, Hispanic students, and students from low socioeconomic backgrounds.

Cinnabar Charter's academic performance has been declining over the past several years, with the school's statewide ranking dropping from 1329 out of 5,530 in 2012-2013 to 4,070 out of 5,883 in 2021-2022. This is significantly lower than nearby schools, such as Wilson Elementary, Meadow Elementary, and Corona Creek Elementary, which are all in the top 25% of California elementary schools. These challenges, including high rates of chronic absenteeism, low academic performance, and a high percentage of students from low-income backgrounds, suggest that Cinnabar Charter may need to implement significant interventions and improvements to address these issues and provide a high-quality education to its students.

Detail:

Public, Charter K-8

286 Skillman Ln.
Petaluma, CA 94952-1226

(707) 765-4345

District: Cinnabar Elementary

SchoolDigger Rank:
4987^th of 5,862 California Elementary Schools

Per Pupil Expenditures: $12,596

Students who attend Cinnabar Charter usually attend:

Middle:	Petaluma Junior High
High:	Petaluma High

Student/teacher ratio: 16.8

Number of students: 160

Racial breakdown:

Hispanic:

76.3%

White:

18.1%

Two or more races:

3.8%

Free/discounted lunch recipients: 84.4%

See top rated California elementary schools

Compare Cinnabar Charter to nearby elementary schools!

Performance Trends

Compare Details Cinnabar Charter ranks worse than 85.1% of elementary schools in California. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 18.37. (See more...)

Compare Details Cinnabar Charter ranks worse than 87.5% of middle schools in California. (See more...)

Compare Details In 2024 the calculated Average Standard Score was 16.08. (See more...)

Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.

Student Body

Compare Details Racial makeup is: Hispanic (76.3%), White (18.1%), two or more races (3.8%). (See more...)

Compare Details 84.4% of students are receiving a free or discounted lunch. (See more...)

Compare Details (See more...)

Teachers

Compare Details The student/teacher ratio at Cinnabar Charter is 16.8. (See more...)

Compare Cinnabar Charter employs 9.5 full-time teachers.

Finance

Compare Details The average total spent per student at Cinnabar Charter is $12,596.

Schooldigger 2024 Rankings:

Cinnabar Charter:

SchoolDigger ranks Cinnabar Charter 4987^th of 5862 California public elementary schools. (See Cinnabar Charter in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:

English Language Learner students:

Low Socio Economic Status students:

Female students:

Male students:

Hispanic students:

SchoolDigger ranks Cinnabar Charter 2429^th of 2777 California public middle schools. (See Cinnabar Charter in the ranking list.)

Middle School Test Score Ratings by Student Subgroup:

Low Socio Economic Status students:

Hispanic students:

Cinnabar Elementary:

SchoolDigger ranks Cinnabar Elementary 1456^th of 1568 California school districts. (See district ranking list.)

Average Parent Rating:

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Rank History for Cinnabar Charter

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Rank History for all elementary school students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	CA State Percentile
2004	53.84	1968^th	4809	59.1%
2005	59.95	1742^nd	4822	63.9%
2006	51.54	2115^th	4818	56.1%
2007	33.68	3319^th	5113	35.1%
2008	23.33	4091^st	5113	20.0%
2009	31.82	3567^th	5193	31.3%
2010	30.32	3826^th	5314	28.0%
2011	43.07	3020^th	5377	43.8%
2012	51.41	2532^nd	5390	53.0%
2013	74.88	1329^th	5530	76.0%
2015	37.56	3163^rd	5611	43.6%
2016	49.27	2520^th	5614	55.1%
2017	44.35	2842^nd	5692	50.1%
2018	39.83	3154^th	5662	44.3%
2019	38.83	3257^th	5789	43.7%
2022	27.78	4070^th	5883	30.8%
2023	24.69	4392^nd	5874	25.2%
2024	18.37	4987^th	5862	14.9%

See the entire list of California Elementary School Rankings!

Rank History for elementary school English Language Learner students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	CA State Percentile
2018	68.47	595^th	3246	81.7%
2019	52.14	1142^nd	3275	65.1%
2022	68.48	513^th	3311	84.5%
2023	31.37	2442^nd	3250	24.9%
2024	55.62	902^nd	3160	71.5%

See the entire list of Best California Elementary Schools for English Language Learner Students!

Rank History for elementary school Low Socio Economic Status students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	CA State Percentile
2018	45.86	2623^rd	5084	48.4%
2019	54.52	2102^nd	5173	59.4%
2022	38.48	3128^th	5264	40.6%
2023	25.43	4273^rd	5374	20.5%
2024	24.59	4402^nd	5511	20.1%

See the entire list of Best California Elementary Schools for Low Socio Economic Status Students!

Rank History for elementary school Female students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	CA State Percentile
2018	52.02	2376^th	5413	56.1%
2019	48.62	2573^rd	5492	53.2%
2022	19.77	4735^th	5635	16.0%
2023	22.59	4471^st	5617	20.4%
2024	20.87	4624^th	5605	17.5%

See the entire list of Best California Elementary Schools for Female Students!

Rank History for elementary school Male students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	CA State Percentile
2018	23.29	4248^th	5431	21.8%
2019	25.34	4156^th	5510	24.6%
2022	35.57	3307^th	5663	41.6%
2023	23.76	4375^th	5650	22.6%
2024	14.52	5187^th	5636	8.0%

See the entire list of Best California Elementary Schools for Male Students!

Rank History for elementary school Hispanic students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Elementary Schools	CA State Percentile
2018	46.90	2410^th	4830	50.1%
2019	35.56	3273^rd	4963	34.1%
2022	33.81	3390^th	5084	33.3%
2023	23.42	4225^th	5098	17.1%
2024	22.67	4301^st	5102	15.7%

See the entire list of Best California Elementary Schools for Hispanic Students!

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

Rank History for Cinnabar Charter

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Rank History for all middle school students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile
2015	40.28	1329^th	2477	46.3%
2016	45.81	1225^th	2497	50.9%
2017	36.06	1511^th	2508	39.8%
2018	25.01	1813^th	2480	26.9%
2019	48.99	1177^th	2715	56.6%
2022	35.42	1606^th	2740	41.4%
2023	32.35	1726^th	2802	38.4%
2024	16.08	2429^th	2777	12.5%

See the entire list of California Elementary School Rankings!

Rank History for middle school English Language Learner students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile	SchoolDigger Rating
2022	76.21	140^th	1540	90.9%
2023	31.74	1139^th	1529	25.5%

See the entire list of Best California Elementary Schools for English Language Learner Students!

Rank History for middle school Low Socio Economic Status students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile
2019	67.28	557^th	2369	76.5%
2022	58.46	770^th	2458	68.7%
2023	34.52	1565^th	2549	38.6%
2024	22.44	2086^th	2575	19.0%

See the entire list of Best California Elementary Schools for Low Socio Economic Status Students!

Rank History for middle school Female students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile
2018	24.31	1695^th	2262	25.1%
2019	53.06	978^th	2380	58.9%
2022	28.80	1696^th	2509	32.4%
2023	26.78	1800^th	2547	29.3%

See the entire list of Best California Elementary Schools for Female Students!

Rank History for middle school Male students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile
2018	25.16	1681^st	2273	26.0%
2019	45.26	1143^rd	2407	52.5%
2022	42.67	1258^th	2527	50.2%
2023	34.32	1529^th	2558	40.2%

See the entire list of Best California Elementary Schools for Male Students!

Rank History for middle school Hispanic students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile
2018	33.30	1383^rd	2072	33.3%
2019	49.40	958^th	2213	56.7%
2022	36.53	1406^th	2359	40.4%
2023	23.34	1894^th	2391	20.8%
2024	21.79	1944^th	2383	18.4%

See the entire list of Best California Elementary Schools for Hispanic Students!

Rank History for middle school White students at Cinnabar Charter

Year	Avg Standard Score	Statewide Rank	Total # Ranked Middle Schools	CA State Percentile
2018	12.33	1349^th	1496	9.8%
2019	48.40	811^th	1602	49.4%
2022	34.32	1025^th	1555	34.1%

See the entire list of Best California Elementary Schools for White Students!

Data source: test scores: California Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Data source: California Department of Education

Review counts

All ratings (Avg rating: 5)

100%

Reviews:

by a parent
Monday, August 24, 2020

My Children were late starting school do to situations beyond our control, so they started at a lower grade for their age group. Cinnabar never hesitated to help get them started and placed them in the appropriate grades that were needed for each of my children. None of the staff or teachers ever looked down at my children or myself and have been very supportive to us and made me feel just as important and appreciated as all the other parents and kids. they have been a real help for us, and I know my children are safe and learning to the best of their abilities, with room to grow at the right pace. I strongly recommend Cinnabar School to EVERYONE I know who have children. Close Quote

Enrollment information for Cinnabar Charter

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Year	White	African American	Asian	Hispanic	American Indian	Pacific Islander	Two or More Races	Not Specified	Total
1988	239	3	3	1	0	n/a	n/a	0	246
1989	245	1	4	6	0	n/a	n/a	0	256
1990	248	3	4	4	0	n/a	n/a	0	259
1991	253	2	4	11	0	n/a	n/a	0	270
1992	270	3	3	15	0	n/a	n/a	0	291
1993	236	3	3	13	0	n/a	n/a	0	255
1994	286	2	4	16	0	n/a	n/a	0	308
1995	279	2	8	21	0	n/a	n/a	0	310
1996	279	2	8	21	0	n/a	n/a	0	310
1997	275	1	5	59	0	n/a	n/a	0	340
1998	230	3	5	55	0	n/a	n/a	0	293
1999	210	2	3	72	0	n/a	n/a	0	287
2000	208	3	4	77	0	n/a	n/a	0	292
2001	193	7	4	72	0	n/a	n/a	0	276
2002	156	1	6	87	0	n/a	n/a	1	251
2003	156	1	6	87	0	n/a	n/a	1	251
2004	154	2	6	100	0	n/a	n/a	7	269
2005	134	4	8	83	0	n/a	n/a	3	232
2006	125	3	5	83	0	n/a	n/a	0	216
2007	122	1	7	96	0	n/a	n/a	0	226
2008	89	n/a	6	110	n/a	n/a	n/a	0	205
2009	91	1	2	109	0	1	0	0	204
2010	78	0	1	114	0	1	1	0	195
2011	67	0	1	117	0	1	1	0	187
2012	56	0	0	113	1	1	2	0	173
2013	49	0	0	115	0	0	1	0	165
2014	50	0	1	132	0	1	3	0	187
2015	76	1	0	154	0	1	4	0	236
2016	81	2	3	159	0	2	5	0	252
2017	83	2	2	165	0	2	4	0	258
2018	83	2	1	151	0	2	4	0	243
2019	74	4	0	161	0	2	8	0	249
2020	66	8	0	162	0	2	9	0	247
2021	59	5	0	159	0	2	6	0	231
2022	50	3	0	148	0	0	5	0	206
2023	40	3	0	140	0	1	1	1	186
2024	29	2	0	122	0	1	6	0	160

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Cinnabar Charter

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	246	10.0	24.6	n/a
1989	256	10.4	24.6	n/a
1990	259	11.0	23.5	n/a
1991	270	11.9	22.6	n/a
1992	291	12.1	24.0	11.7
1993	255	11.0	23.2	15.3
1994	308	11.8	26.1	11.4
1995	310	11.8	26.3	11.6
1996	310	11.8	26.3	11.6
1997	340	14.8	23.0	22.1
1998	293	17.0	17.2	26.6
1999	287	16.2	17.7	31.4
2000	292	17.1	17.1	33.6
2001	276	15.0	18.4	30.8
2002	251	13.5	18.6	36.4
2003	251	13.5	18.6	36.4
2004	269	13.0	20.7	38.5
2005	232	13.0	17.8	42.8
2006	216	12.0	18.0	42.1
2007	226	13.6	16.6	45.6
2008	205	14.6	14.0	61.5
2009	204	12.9	14.6	69.1
2010	195	13.3	14.6	73.8
2011	187	n/a	n/a	72.7
2012	173	9.4	18.2	n/a
2013	165	8.4	19.4	78.8
2014	187	10.8	17.2	76.5
2015	236	12.0	19.6	69.5
2016	252	12.0	21.0	69.4
2017	258	11.9	21.5	64.3
2018	243	11.9	20.3	29.2
2019	249	10.9	22.7	41
2020	247	n/a	n/a	74.9
2021	231	11.0	21.0	57.1
2022	206	11.9	17.3	71.8
2023	186	9.0	20.6	66.7
2024	160	9.5	16.8	84.4

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Cinnabar Charter

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Year	# Students	Full-time Teachers	Student/Teacher ratio	% Free/Discounted Lunch
1988	246	10.0	24.6	n/a
1989	256	10.4	24.6	n/a
1990	259	11.0	23.5	n/a
1991	270	11.9	22.6	n/a
1992	291	12.1	24.0	11.7
1993	255	11.0	23.2	15.3
1994	308	11.8	26.1	11.4
1995	310	11.8	26.3	11.6
1996	310	11.8	26.3	11.6
1997	340	14.8	23.0	22.1
1998	293	17.0	17.2	26.6
1999	287	16.2	17.7	31.4
2000	292	17.1	17.1	33.6
2001	276	15.0	18.4	30.8
2002	251	13.5	18.6	36.4
2003	251	13.5	18.6	36.4
2004	269	13.0	20.7	38.5
2005	232	13.0	17.8	42.8
2006	216	12.0	18.0	42.1
2007	226	13.6	16.6	45.6
2008	205	14.6	14.0	61.5
2009	204	12.9	14.6	69.1
2010	195	13.3	14.6	73.8
2011	187	n/a	n/a	72.7
2012	173	9.4	18.2	n/a
2013	165	8.4	19.4	78.8
2014	187	10.8	17.2	76.5
2015	236	12.0	19.6	69.5
2016	252	12.0	21.0	69.4
2017	258	11.9	21.5	64.3
2018	243	11.9	20.3	29.2
2019	249	10.9	22.7	41
2020	247	n/a	n/a	74.9
2021	231	11.0	21.0	57.1
2022	206	11.9	17.3	71.8
2023	186	9.0	20.6	66.7
2024	160	9.5	16.8	84.4

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.

Kindergarten Immunization Rates