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Twin Ridges Home Study Charter

Q: Is Twin Ridges Home Study Charter a good school?

Twin Ridges Home Study Charter ranks 4000 th of 5857 California elementary schools. SchoolDigger rates this school 2 stars out of 5.

Public, Charter Grades K-8

4000^th

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 32% of California elementary schools

Summary

Twin Ridges Home Study Charter is a K-8 public charter school serving 208 students in Nevada City, California, offering a unique blend of independent study and structured support under the Nevada County Office of Education.

This school stands out for its exceptionally low chronic absenteeism rate of 9.2%, which is less than half the state average and a major strength of its home study model. However, its overall academic performance, particularly in math, tends to be below state averages and lags behind many nearby schools like Nevada City School of the Arts or Chicago Park Community Charter. Interestingly, Twin Ridges does show a relative strength in science, where it outperforms both its district and the state. The school's performance has been volatile year-to-year, and it operates with significantly lower per-student spending than most comparison schools, such as Bell Hill Academy.

Families considering Twin Ridges should note it serves an increasingly economically diverse population and that the home study format appears highly effective at keeping students engaged. Academic results can vary significantly by grade and subject, with notable gaps sometimes appearing between different student groups. Compared to other local charters, it represents a more flexible, engagement-focused option, though one with less consistent academic outcomes than some traditional or specialty models in the area.

208

Students ?

19.2

Student/teacher ratio ?

$27,163

Per pupil spending ?

48.1%

Free/discounted lunch ?

111 New Mohawk Rd.
Nevada City, CA 95959-3226

(530) 478-1815

District: Nevada County Office of Education

Racial breakdown:

White:

78.4%

Two or more races:

10.1%

Hispanic:

7.2%

See top rated California elementary schools

Compare Twin Ridges Home Study Charter to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 44th percentile in 2011 → 32nd in 2025

Worth a look

!Test scores below the California average (31% vs 41% meeting standards)

!Ranking has slipped — down 12 percentile points since 2011

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2024-2025) ?

This school31%

District avg32%

California avg41%

Elementary school

4,000^th of 5,857

California public elementary schools ?

Bottom 32%▼ down 25 pts since 2015

From top 43% (2015) to bottom 32% (2025)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

1,757^th of 2,761

California public middle schools ?

Bottom 36%▼ down 25 pts since 2022

From top 39% (2022) to bottom 36% (2025)

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Elementary school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	29.5	4000 of 5857	31.7%	★★☆☆☆
2024	43.4	2974 of 5869	49.3%	★★☆☆☆
2023	48.0	2640 of 5859	54.9%	★★★☆☆
2022	46.8	2707 of 5883	54.0%	★★★☆☆
2021	71.2	377 of 1417	73.4%	★★★★☆
2019	25.7	4298 of 5789	25.8%	★☆☆☆☆
2018	31.9	3675 of 5662	35.1%	★★☆☆☆
2015	50.4	2419 of 5611	56.9%	★★★☆☆
2012	21.4	4555 of 5390	15.5%	★☆☆☆☆
2011	43.4	2993 of 5377	44.3%	★★☆☆☆
2010	43.3	2964 of 5314	44.2%	★★☆☆☆
2009	45.0	2752 of 5193	47.0%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	44.1	2831 of 5597	49.4%	★★☆☆☆
2021	56.9	493 of 1267	61.1%	★★★☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	34.2	3649 of 5460	33.2%	★★☆☆☆
2019	43.0	2900 of 5173	43.9%	★★☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	29.9	3864 of 5628	31.3%	★★☆☆☆
2024	45.7	2715 of 5643	51.9%	★★★☆☆
2023	60.8	1910 of 5638	66.1%	★★★☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	12.3	2350 of 2598	9.5%	☆☆☆☆☆
2024	18.9	2250 of 2651	15.1%	★☆☆☆☆
2023	20.5	2212 of 2661	16.9%	★☆☆☆☆
2022	24.1	2168 of 2726	20.5%	★☆☆☆☆
2019	8.0	2689 of 2834	5.1%	☆☆☆☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	31.9	1757 of 2761	36.4%	★★☆☆☆
2024	50.9	1143 of 2783	58.9%	★★★☆☆
2023	46.5	1267 of 2781	54.4%	★★★☆☆
2022	53.7	1065 of 2740	61.1%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2024	16.2	2255 of 2551	11.6%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2024	74.2	541 of 2552	78.8%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2024	26.1	1136 of 1537	26.1%	★☆☆☆☆
2023	27.5	1122 of 1543	27.3%	★☆☆☆☆
2022	36.3	993 of 1555	36.1%	★★☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Elementary school

Female (2025)49th percentile+18 vs school

Low Socio Economic Status (2025)33rd percentile~ school

Male (2025)31st percentile~ school

White (2025)10th percentile-22 vs school

Middle school

Male (2024)79th percentile+20 vs school

White (2024)26th percentile-33 vs school

Female (2024)12th percentile-47 vs school

By subject vs California (2024-2025) ?

Science38%+6 vs state

English Language Arts/Literacy38%-11 vs state

Mathematics22%-15 vs state

★

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Schools Near Twin Ridges Home Study Charter

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							% Completely Immunized (2022)	% Polio (2022)	% Hepatitis B (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Hepatitis B KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Twin Ridges Home Study Charter	Public, Charter	K-8	111 New Mohawk Rd.	Nevada City	95959	Nevada County	Nevada County Office of Education	Yes	(n/a)	No	(n/a)	(530) 478-1815	208	11	19.2	48.1%	163 (78.4%)	3 (1.4%)	15 (7.2%)	1 (0.5%)	4 (1.9%)	1 (0.5%)	21 (10.1%)	29.5	4000^th of 5857 public elementary schools	31.7%		43.4	2974^th of 5869 public elementary schools	49.3%	1026	40.0		38.5	26.3	38.9	36.7	21.1	61.5		38.0	26.3	38.9	10.0	11.1	30.8		22.4	25.0	50.0	54.2	50.0	50.0	41.7	$27,163	$26,974	$189
Deer Creek Elementary	Public	K-3	805 Lindley Ave.	Nevada City	95959	Nevada County	Nevada City Elementary	No	(n/a)	No	(n/a)	(530) 265-1870	259	12	21.7	37.5%	203 (78.4%)	2 (0.8%)	28 (10.8%)	6 (2.3%)	2 (0.8%)	1 (0.4%)	17 (6.6%)								(n/a)				44.9						44.9	42.0						42.0	97.1				97.1		$21,197	$19,832	$1,365
Nevada County Special Education	Public	K-8	400 Hoover Ln.	Nevada City	95959	Nevada County	Nevada County Office of Education	No	(n/a)	No	(n/a)	(530) 265-0611	51	7	7.2	58.8%	34 (66.7%)	0 (0.0%)	10 (19.6%)	2 (3.9%)	0 (0.0%)	0 (0.0%)	4 (7.8%)								(n/a)										6.3							6.3
Union Hill Elementary	Public, Charter	K-6	11638 Colfax Hwy.	Grass Valley	95945	Nevada County	Union Hill Elementary	Yes	(n/a)	No	(n/a)	(530) 273-8456	542	27	20.2	45.8%	429 (79.2%)	0 (0.0%)	49 (9.0%)	3 (0.6%)	0 (0.0%)	1 (0.2%)	60 (11.1%)	45.3	2866^th of 5857 public elementary schools	51.1%		54.2	2332^nd of 5869 public elementary schools	60.3%	534	24.1		24.1	46.6	52.1	33.8	39.7			42.8	52.1	45.2	20.0	34.6			37.5	96.2	97.2		97.2		98.1	$26,410	$25,880	$530
Grass Valley Charter	Public, Charter	K-8	225 South Auburn St.	Grass Valley	95945	Nevada County	Grass Valley Elementary	Yes	(n/a)	No	(n/a)	(530) 273-8723	546	23	23.7	33.2%	451 (82.6%)	5 (0.9%)	50 (9.2%)	9 (1.6%)	5 (0.9%)	1 (0.2%)	25 (4.6%)	52.8	2445^th of 5857 public elementary schools	58.3%		60.9	2034^th of 5869 public elementary schools	65.3%	411	36.1	40.4	38.1	60.7	33.9	40.3	45.1	66.7	55.8	50.2	64.3	32.7	33.9	39.2	43.4	40.4	42.3	91.4	96.6	94.8	96.6	94.8	94.8	$9,267	$5,006	$4,261
Bell Hill Academy	Public	K-4	342 South School St.	Grass Valley	95945	Nevada County	Grass Valley Elementary	No	(n/a)	No	(n/a)	(530) 273-2281	246	11	22.3	59.3%	114 (46.3%)	3 (1.2%)	117 (47.6%)	3 (1.2%)	5 (2.0%)	0 (0.0%)	4 (1.6%)	75	1370^th of 5857 public elementary schools	76.6%		66.4	1757^th of 5869 public elementary schools	70.1%	387				51.1	61.7					56.4	60.4	58.3					59.4	94.1				94.1		$11,697	$1,834	$9,863
Margaret G. Scotten Elementary	Public	K-4	10821 Squirrel Creek Rd.	Grass Valley	95945	Nevada County	Grass Valley Elementary	No	(n/a)	No	(n/a)	(530) 273-6472	357	19	19.2	74.8%	257 (72.0%)	4 (1.1%)	60 (16.8%)	7 (2.0%)	5 (1.4%)	3 (0.8%)	21 (5.9%)	33.8	3658^th of 5857 public elementary schools	37.5%		36.2	3427^th of 5869 public elementary schools	41.6%	231				31.8	36.8					33.8	42.2	26.3					35.7	90.1	96.7		94.5	92.3	95.6	$11,740	$3,576	$8,164
Yuba River Charter	Public, Charter	K-8	10085 Adam Ave.	Grass Valley	95945	Nevada County	Yuba River Charter District	Yes	(n/a)	No	(n/a)	(530) 272-6060	323	12	26.3	54.2%	242 (74.9%)	0 (0.0%)	38 (11.8%)	5 (1.5%)	3 (0.9%)	1 (0.3%)	34 (10.5%)	50.2	2575^th of 5857 public elementary schools	56.0%		71.4	1530^th of 5869 public elementary schools	73.9%	1045	50.0	50.0	50.0	41.2	48.6	56.3	54.8	89.3	66.7	58.3	29.4	17.1	34.4	35.5	64.3	70.4	40.1	55.4	55.4	57.1	57.1	55.4	57.1	$30,893	$30,520	$373
Nevada City School of the Arts	Public, Charter	K-8	13032 Bitney Springs Rd. Bldg.	Nevada City	95959	Nevada County	Nevada City School of the Arts District	Yes	(n/a)	No	(n/a)	(530) 273-7736	477	26	18.5	43.0%	358 (75.1%)	1 (0.2%)	60 (12.6%)	7 (1.5%)	0 (0.0%)	0 (0.0%)	50 (10.5%)	67.8	1698^th of 5857 public elementary schools	71.0%		63	1926^th of 5869 public elementary schools	67.2%	228	57.7	57.7	57.7	52.4	64.4	59.6	56.9	68.3	73.1	62.8	64.3	35.6	40.4	32.8	40.0	50.0	43.0	71.9	79.7	78.1	82.8	79.7	84.4
Chicago Park Elementary	Public	K-8	15725 Mt. Olive Rd.	Grass Valley	95945	Nevada County	Chicago Park Elementary	No	(n/a)	No	(n/a)	(530) 346-2153	120	8	15.8	44.2%	84 (70.0%)	0 (0.0%)	25 (20.8%)	0 (0.0%)	2 (1.7%)	0 (0.0%)	9 (7.5%)	65.6	1812^th of 5857 public elementary schools	69.1%		45.7	2809^th of 5869 public elementary schools	52.1%	997	37.5		32.0	77.8	69.2	43.8				59.7	61.1	61.5	12.5				41.7							$29,295	$28,074	$1,221

Frequently Asked Questions about Twin Ridges Home Study Charter

What is the racial makeup of Twin Ridges Home Study Charter?

Students at Twin Ridges Home Study Charter are 78% White, 10% Two or more races, 7% Hispanic, 2% American Indian, 1% African American.

Is Twin Ridges Home Study Charter a good school?

Twin Ridges Home Study Charter ranks 4000^th of 5857 California elementary schools. SchoolDigger rates this school 2 stars out of 5.

What district is Twin Ridges Home Study Charter in?

Nevada County Office of Education

How many students attend Twin Ridges Home Study Charter?

In the 2024-25 school year, 208 students attended Twin Ridges Home Study Charter.

Rate Twin Ridges Home Study Charter!

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Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.