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Home > South Dakota > Dewey County

Timber Lake School District 20-3

500 Main St
Timber Lake, SD 57656

( shown in map)

:

10/

10

Top 10%

Tel: (605) 865-3654

<�鶹��ý class="so-dt-title" id="top-rankings">Top Rankings

Timber Lake School District 20-3 ranks among the top 20% of public school district in South Dakota for:

Category

Attribute

Overall Rank

Highest overall rank (Top 10%)

Math Proficiency

Highest math proficiency (Top 10%)

Reading/Language Arts Proficiency

Highest reading/language arts proficiency (Top 10%)

Diversity

Most diverse schools (Top 1%)

Student Attention

Lowest student-teacher ratio (Top 1%)

For the 2026 school year, there is 1 public middle school serving 81 students in Timber Lake School District 20-3. This district's average middle is 10/10, which is in the top 5% of public middle schools in South Dakota.

Public Middle School in Timber Lake School District 20-3 have an score of 62% (versus the South Dakota public middle school average of 39%), and score of 67% (versus the 49% statewide average).

Minority enrollment is 53% of the student body (majority American Indian), which is more than the South Dakota public middle school average of 42% (majority American Indian).

<�鶹��ý class='so-dt-title' id="overview">Overview

This School District

This State (SD)

# Schools

3 Schools

295 Schools

# Students

389 Students

40,126 Students

# Teachers

39 Teachers

2,993 Teachers

Student-Teacher Ratio

10:1

10:1

<�鶹��ý class='so-dt-title' id="student-by-grade">Student By Grade

Comparison of Students By Grade Trends
Grade	Timber Lake School District 20-3	South Dakota
6	27	56
7	20	64
8	34	65

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<�鶹��ý class='so-dt-title' id="district-rank">District Rank

Timber Lake School District 20-3, which is ranked within the top 5% of all 146 school districts in South Dakota (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.

The school district's graduation rate of 80% has increased from 50% over five school years.

This School District

State Average (SD)

#8 out of 148 school districts
(Top 10%)

Overall School District Rank Trends
Year	Timber Lake School District 20-3
2023	#8
2022	#15
2021	#8
2019	#12
2018	#42
2017	#38
2016	#37
2015	#50
2013	#85
2012	#120
2011	#122

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67%

42%

Math Proficiency Trends
Year	Timber Lake School District 20-3	South Dakota
2023	67%	42%
2022	57%	42%
2021	62%	43%
2019	62%	46%
2018	52%	47%
2017	52%	47%
2016	47%	45%
2015	47%	42%
2013	72%	73%
2012	72%	75%
2011	72%	76%

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65-69%

51%

Reading and Language Arts Proficiency Trends
Year	Timber Lake School District 20-3	South Dakota
2022	67%	51%
2021	67%	52%
2019	67%	54%
2018	52%	54%
2017	57%	53%
2016	62%	52%
2015	52%	49%
2013	77%	74%
2012	67%	75%
2011	67%	75%
2010	67%	75%

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45-49%

42%

Science Proficiency Trends
Year	Timber Lake School District 20-3	South Dakota
2022	47%	42%
2021	57%	42%

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(21-22)

≥80%

82%

Graduation Rate Trends
Year	Timber Lake School District 20-3	South Dakota
2022	80%	82%
2021	80%	80%
2020	80%	84%
2019	80%	83%
2018	80%	82%
2017	50%	82%
2016	80%	82%
2015	80%	82%
2014	80%	81%
2013	80%	81%
2012	80%	81%

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<�鶹��ý class='so-dt-title' id="students-by-ethnicity">Students by Ethnicity:

0.53

0.59

Comparison of Diversity Score Trends
Year	Timber Lake School District 20-3	South Dakota
2023	0.52	0.51
2022	0.53	0.50
2021	0.52	0.50
2020	0.52	0.50
2019	0.52	0.50
2018	0.51	0.47
2017	0.51	0.47
2016	0.50	0.42
2015	0.50	0.41
2014	0.50	0.40
2013	0.48	0.38
2012	0.49	0.38
2011	0.49	0.40
2010	0.49	0.37
2009	0.48	0.38
2008	0.50	0.30
2007	0.49	0.28
2006	0.51	0.34
2005	0.51	0.28
2004	0.51	0.34
2003	0.51	0.32
2002	0.50	0.31
2001	0.50	0.31
2000	0.48	0.27
1999	0.49	0.29
1998	0.47	0.29
1997	0.48	0.29
1996	0.48	0.28
1995	0.49	0.28
1994	0.48	0.27
1993	0.48	0.25

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% American Indian

54%

26%

American Indian Student Percentage Comparison Over Years (1993-2023)
Year	Timber Lake School District 20-3	South Dakota
2023	52%	14%
2022	53%	14%
2021	53%	14%
2020	54%	16%
2019	54%	16%
2018	58%	16%
2017	58%	16%
2016	60%	12%
2015	60%	11%
2014	60%	11%
2013	61%	11%
2012	61%	12%
2011	61%	17%
2010	61%	16%
2009	61%	17%
2008	56%	12%
2007	57%	11%
2006	53%	17%
2005	54%	11%
2004	51%	16%
2003	44%	16%
2002	44%	15%
2001	42%	15%
2000	40%	14%
1999	38%	14%
1998	37%	14%
1997	39%	14%
1996	40%	14%
1995	40%	14%
1994	39%	13%
1993	38%	12%

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% Asian

n/a

1%

Asian Student Percentage Comparison Over Years (2001-2005)
Year	Timber Lake School District 20-3	South Dakota
2005	1%	1%
2004	1%	1%
2003	1%	1%
2002	1%	1%
2001	1%	1%

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% Hispanic

2%

7%

Hispanic Student Percentage Comparison Over Years (1999-2023)
Year	Timber Lake School District 20-3	South Dakota
2023	2%	8%
2022	2%	7%
2021	2%	7%
2020	1%	6%
2019	1%	6%
2018	2%	5%
2017	2%	5%
2016	2%	5%
2015	2%	5%
2014	2%	5%
2012	1%	4%
2011	1%	3%
2010	1%	3%
2006	1%	2%
1999	1%	1%

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% Black

n/a

3%

% White

43%

58%

White Student Percentage Comparison Over Years (1993-2023)
Year	Timber Lake School District 20-3	South Dakota
2023	46%	68%
2022	45%	69%
2021	45%	69%
2020	44%	69%
2019	44%	69%
2018	39%	71%
2017	39%	71%
2016	38%	75%
2015	38%	76%
2014	37%	77%
2013	39%	78%
2012	38%	78%
2011	38%	76%
2010	38%	78%
2009	39%	77%
2008	44%	83%
2007	43%	84%
2006	46%	80%
2005	45%	84%
2004	48%	80%
2003	55%	81%
2002	55%	82%
2001	57%	82%
2000	60%	86%
1999	61%	83%
1998	63%	83%
1997	61%	83%
1996	60%	84%
1995	60%	84%
1994	61%	84%
1993	62%	86%

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% Hawaiian

n/a

n/a

% Two or more races

1%

5%

Two or More Races Student Percentage Comparison Over Years (2017-2020)
Year	Timber Lake School District 20-3	South Dakota
2020	1%	4%
2019	1%	4%
2018	1%	3%
2017	1%	3%

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All Ethnic Groups

<�鶹��ý class="so-dt-title" id="district-revenue-and-spending">District Revenue and Spending

The revenue/student of $13,671 is higher than the state median of $13,146. The school district revenue/student has declined by 24% over four school years.

The school district's spending/student of $15,599 is higher than the state median of $12,647. The school district spending/student has declined by 5% over four school years.

This School District

This State (SD)

Total Revenue

$5 MM

$1,916 MM

Total Revenues Trends
Year	Timber Lake School District 20-3	South Dakota
2023	$5 MM	$6 MM
2022	$7 MM	$5 MM
2021	$5 MM	$6 MM
2020	$7 MM	$5 MM
2019	$6 MM	$5 MM
2018	$8 MM	$5 MM
2017	$4 MM	$5 MM
2016	$5 MM	$4 MM
2015	$6 MM	$4 MM
2014	$5 MM	$4 MM
2012	$9 MM	$4 MM
2011	$6 MM	$4 MM
2010	$6 MM	$4 MM
2009	$4 MM	$3 MM
2008	$4 MM	$3 MM
2007	$4 MM	$3 MM
2006	$4 MM	$3 MM
2005	$4 MM	$3 MM
2004	$3 MM	$3 MM
2003	$3 MM	$2 MM
2002	$3 MM	$2 MM
2001	$3 MM	$2 MM
2000	$4 MM	$2 MM
1999	$2 MM	$2 MM
1998	$2 MM	$2 MM
1997	$2 MM	$2 MM
1996	$2 MM	$2 MM
1995	$1 MM	$2 MM

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Spending

$6 MM

$1,844 MM

Total Expenditure Trends
Year	Timber Lake School District 20-3	South Dakota
2023	$6 MM	$5 MM
2022	$6 MM	$5 MM
2021	$6 MM	$5 MM
2020	$6 MM	$5 MM
2019	$6 MM	$5 MM
2018	$6 MM	$5 MM
2017	$6 MM	$5 MM
2016	$5 MM	$4 MM
2015	$5 MM	$3 MM
2014	$5 MM	$4 MM
2012	$11 MM	$3 MM
2011	$5 MM	$4 MM
2010	$5 MM	$3 MM
2009	$4 MM	$3 MM
2008	$3 MM	$3 MM
2007	$3 MM	$3 MM
2006	$3 MM	$3 MM
2005	$3 MM	$3 MM
2004	$3 MM	$2 MM
2003	$3 MM	$3 MM
2002	$4 MM	$2 MM
2001	$4 MM	$2 MM
2000	$2 MM	$2 MM
1999	$2 MM	$2 MM
1998	$2 MM	$2 MM
1997	$2 MM	$2 MM
1996	$2 MM	$2 MM
1995	$2 MM	$2 MM

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Revenue / Student

$13,671

$13,146

Average Revenue Per Student Trends
Year	Timber Lake School District 20-3	South Dakota
2023	$14,691	$15,739
2022	$18,146	$14,965
2021	$14,896	$16,342
2020	$18,146	$14,965
2019	$17,726	$14,816
2018	$21,234	$15,113
2017	$12,139	$15,388
2016	$15,622	$14,130
2015	$16,870	$11,732
2014	$13,016	$11,720
2012	$27,743	$11,685
2011	$18,752	$11,891
2010	$18,657	$11,732
2009	$14,725	$10,941
2008	$15,700	$10,856
2007	$15,114	$10,306
2006	$13,963	$10,049
2005	$12,804	$9,356
2004	$11,081	$8,456
2003	$10,580	$8,337
2002	$9,713	$7,799
2001	$9,989	$7,600
2000	$13,726	$7,183
1999	$8,276	$6,671
1998	$5,987	$5,954
1997	$5,692	$5,709
1995	$4,320	$5,253
1992	$3,760	$4,776

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Spending / Student

$15,599

$12,647

Average Expenditure Per Student Trends
Year	Timber Lake School District 20-3	South Dakota
2023	$16,762	$14,560
2022	$16,565	$14,171
2021	$16,997	$15,118
2020	$16,565	$14,171
2019	$15,966	$14,567
2018	$16,613	$15,244
2017	$15,384	$14,997
2016	$15,015	$13,890
2015	$12,977	$11,206
2014	$13,209	$11,268
2012	$31,940	$10,790
2011	$14,367	$11,832
2010	$14,352	$11,206
2009	$13,242	$10,706
2008	$13,335	$10,238
2007	$12,733	$9,578
2006	$11,736	$9,559
2005	$10,485	$9,435
2004	$10,265	$8,315
2003	$9,679	$8,840
2002	$13,208	$8,399
2001	$13,982	$8,153
2000	$8,359	$7,670
1999	$6,874	$6,645
1998	$6,069	$5,696
1997	$5,597	$5,234
1995	$4,775	$5,109
1992	$4,032	$5,221

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Best Timber Lake School District 20-3 Public Middle Schools (2026)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Timber Lake Middle School - 03

(Math: 60-64% | Reading: 65-69%)
:

9/

10

Top 20%

500 Main St
Timber Lake, SD 57656
(605) 865-3654

Gr: 6-8 | 81 students Student-teacher ratio: 9:1 Minority enrollment: 53%

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Quick Facts (2026)

District size: 3 schools
Grades: PK-12
Enrollment: 389 students
Student-Teacher Ratio: 10:1
Minority Enrollment: 57%
: ≥80% (Btm 50% in SD)
: Top 10%
: 67% (Top 10%)
: 65-69% (Top 10%)
: 45-49% (Top 30%)
Source: National Center for Education Statistics (NCES), SD Dept. of Education

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