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Todd County Achievement Middle School - 18

Public Grades 6-8

238^th

SchoolDigger Rank ?

of 246 South Dakota Middle Schools

Better than 3% of South Dakota middle schools

Summary

Todd County Achievement Middle School - 18 is a small public middle school in Mission, South Dakota, serving just 14 students in grades 6-8. The school is part of the Todd County School District 66-1, which is ranked 142 out of 147 school districts in the state and has a 0-star rating from SchoolDigger.

The school faces significant challenges, with extremely low academic performance, high chronic absenteeism, and a 100% free and reduced-lunch rate, indicating that all students come from low-income households. In the 2024-2025 school year, 0% of students were proficient or better in English Language Arts, Mathematics, and Science, far below the state averages. The school's chronic absenteeism rates have ranged from 70.7% to 88.2% in recent years, which is alarmingly high. Additionally, the school's spending per student and student-teacher ratio have fluctuated greatly, suggesting instability in resources and staffing.

When compared to the nearby White River Middle School - 04 and Todd County Middle School - 10, Todd County Achievement Middle School - 18 performs significantly worse academically and has much higher chronic absenteeism rates. This indicates that the school is struggling to provide a quality education for its students, even within the context of the surrounding schools in the Todd County School District 66-1 and the White River School District 47-1.

Students ?

10.0

Student/teacher ratio ?

100%

Free/discounted lunch ?

181 W Denver St
Mission, SD 57555

(605) 856-3544

District: Todd County School District 66-1

Racial breakdown:

American Indian:

100.0%

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At a glance

Strengths

✓Small classes — about 10 students per teacher

Worth a look

!Test scores below the South Dakota average (0% vs 44% meeting standards)

!In the lower quartile statewide (3rd percentile)

!High chronic absenteeism (88% vs 20% South Dakota)

Students meeting standards (2024-2025) ?

This school0%

District avg10%

South Dakota avg44%

238^th of 246

South Dakota public middle schools ?

Bottom 3%

See the entire ranking list of South Dakota Middle Schools →

★★★★★

SchoolDigger rating ?

2^nd of 2Middle Schools in the Todd County School District 66-1

142^nd of 147Todd County School District 66-1 among South Dakota districts

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)

Native American (2025)14th percentile+11 vs school

Male (2025)8th percentile+5 vs school

Female (2025)5th percentile~ school

Low Socio Economic Status (2025)3rd percentile~ school

By subject vs South Dakota (2024-2025) ?

English Language Arts0%-50 vs state

Mathematics0%-41 vs state

Science0%-43 vs state

★

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Schools Near Todd County Achievement Middle School - 18

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

School													Students/Teachers											Ranking (2025)				Ranking (2024)				Smarter Balanced Assessments English Language Arts (2025)				Smarter Balanced Assessments Mathematics (2025)				Smarter Balanced Assessments Science (2025)	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	Smarter Balanced Assessments English Language Arts 6th Grade	Smarter Balanced Assessments English Language Arts 7th Grade	Smarter Balanced Assessments English Language Arts 8th Grade	Smarter Balanced Assessments English Language Arts All Grades	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	Smarter Balanced Assessments Science 8th Grade	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Todd County Achievement Middle School - 18	Public	6-8	181 W Denver St	Mission	57555	Todd County	Todd County School District 66-1	(n/a)	(n/a)	No	Yes	(605) 856-3544	9	1	10.0	100.0%	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	9 (100.0%)	0 (0.0%)	0 (0.0%)	7.7	238^th of 246 public middle schools	3.3%					(n/a)			0.0				0.0		0.0
Todd County Middle School - 10	Public	6-8	27000 US Hwy 83	Mission	57555	Todd County	Todd County School District 66-1	(n/a)	(n/a)	No	Yes	(605) 856-3504	353	26	13.3	100.0%	1 (0.3%)	0 (0.0%)	7 (2.0%)	6 (1.7%)	333 (94.3%)	2 (0.6%)	4 (1.1%)	10.6	230^th of 246 public middle schools	6.5%					(n/a)	11.1	6.8	13.6	10.3	2.0	0.9	8.7	3.8	8.7	$15,868	$3,603	$12,265
White River Middle School - 04	Public	6-8	501 E 3rd St	White River	57579	Mellette County	White River School District 47-1	(n/a)	(n/a)	No	Yes	(605) 259-3135	93	8	11.6	96.8%	3 (3.2%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	85 (91.4%)	0 (0.0%)	5 (5.4%)	22.1	201^st of 246 public middle schools	18.3%		5	144^th of 147 public middle schools	2.0%	57	37.0	20.0	16.1	23.9	29.6	13.3	6.5	15.9	16.1	$16,410	$3,270	$13,140

Frequently Asked Questions about Todd County Achievement Middle School - 18

What district is Todd County Achievement Middle School - 18 in?

Todd County School District 66-1

How many students attend Todd County Achievement Middle School - 18?

In the 2024-25 school year, 9 students attended Todd County Achievement Middle School - 18.

Is Todd County Achievement Middle School - 18 a good school?

Todd County Achievement Middle School - 18 ranks in the bottom 3.3% of South Dakota middle schools.

What is the racial makeup of Todd County Achievement Middle School - 18?

Students at Todd County Achievement Middle School - 18 are 100% American Indian.

Rate Todd County Achievement Middle School - 18!

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