Enrollment
304
Elementary
DISTRICT 315 · STATE 204
SCHOOL COMMUNITY·ABERDEEN SCHOOL DISTRICT 06-1·NCES 460207000009
O M Tiffany Elementary - 11
819 8th Ave NE, Aberdeen, SD 57401 · (605) 725-7400 · Brown County
GRADES KG–05ELEMENTARY33-TOWNTITLE IREGULAR SCHOOL304 STUDENTS
C-
allk12 Grade
Scored higher than 18% of South Dakota public elementary schools
- C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- ·Three-year trend Not available for this school, so the grade uses the other parts.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded South Dakota public elementary schools
Student : Teacher
12.9:1
24 FTE teachers
DISTRICT 12.3:1 · STATE 15.4:1
Free / Reduced Lunch
55%
168 students
DISTRICT 43% · STATE 42%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Kindergarten | 42 | 14% |
| Grade 1 | 47 | 15% |
| Grade 2 | 61 | 20% |
| Grade 3 | 60 | 20% |
| Grade 4 | 45 | 15% |
| Grade 5 | 49 | 16% |
This year's kindergarten class (42) is 14% smaller than its 5th grade class (49).
Student demographics
56%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 49% · STATE 53% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
SD Smarter Balanced 2024-25 . % ProficientEnglish Language Arts
41.6%
SD avg 50.3% . +1.2pp since 2022
Math
43.6%
SD avg 47.5% . -2.1pp since 2022
What this means: On the SD Smarter Balanced, South Dakota's statewide test, about 42 of every 100 students at this school read and write at grade level and about 44 of 100 do math at grade level. Across all South Dakota schools, those numbers are about 50 and 47. Reading and writing scores are up about 1 points since 2022, while math scores are down about 2 points.
SD Smarter Balanced results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 41.6% | 43.6% |
| 2023-24 | 31.0% | 40.1% |
| 2022-23 | 40.4% | 45.7% |
% Proficient, all students and all tested grades.
Source: SD Smarter Balanced. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
32.4%
composite math + reading, all grades
Predicted
40.4%
based on SD schools with similar FRL share
Beats by
-8.0pp
below demographic expectation
What this means: About 32% of students here test proficient in math and reading, compared with the roughly 40% typical for South Dakota schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among South Dakota's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like O M Tiffany Elementary - 11
O M Tiffany Elementary - 11's state test result (32.4% proficient) is higher than 0 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| O M Tiffany Elementary - 11 this school | 304 | 55.3% | 32.4% |
| Simmons Elementary - 10 Aberdeen | 386 | 48.2% | 38.1% |
| Woodrow Wilson Elementary - 17 Rapid City | 328 | 41.8% | 41.0% |
| Flandreau Elementary - 04 Flandreau | 287 | 51.2% | 39.1% |
| Longfellow Elementary - 05 Mitchell | 290 | 45.5% | 52.0% |
| Mike Miller Elementary - 07 Aberdeen | 282 | 40.8% | 42.7% |
Matched among South Dakota elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where O M Tiffany Elementary - 11 ranks
Among elementary schools| Measure | This school | In South Dakota | In Brown County |
|---|---|---|---|
| State test proficiency ranked highest first | 32.4% | #164 of 193 | #8 of 8 |
| Math proficiency ranked highest first | 43.6% | #131 of 199 ▲ 10 | #6 of 8 ▲ 1 |
| Reading proficiency ranked highest first | 41.6% | #144 of 202 ▲ 30 | #7 of 8 ▲ 1 |
| Enrollment ranked largest first | 304 | #94 of 331 | #4 of 11 |
| Students per teacher ranked fewest first | 12.9:1 | #39 of 131 | #4 of 7 |
| Diversity index ranked most diverse first | 56.2% | #35 of 131 | #3 of 7 |
| Free and reduced lunch ranked highest share first | 55.3% | #43 of 209 | #2 of 8 |
| Enrollment change since 2017-18 ranked steepest decline first | -10.1% | #49 of 87 | #4 of 6 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
304
-20 (-6%) vs 2020
-22% since 1990-91, when it was 391
Student : Teacher
12.9:1
was 12.5:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 304 | 23.5 | 12.9:1 | 55% (168) |
| 2023-24 | 290 | 23.9 | 12.2:1 | 46% (134) |
| 2022-23 | 312 | 25 | 12.5:1 | 47% (146) |
| 2020-21 | 324 | 26 | 12.5:1 | 46% (148) |
| 2017-18 | 338 | 26.3 | 12.9:1 | 44% (149) |
| 2015-16 | 451 | 27 | 16.7:1 | 50% (225) |
| 2010-11 | 388 | 26 | 14.9:1 | 43% (168) |
| 2000-01 | 286 | 20 | 14.3:1 | 29% (82) |
| 1990-91 | 391 | 22 | 17.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for O M Tiffany Elementary - 11.
Since 2017-18: students down 10% (338 to 304); teachers down 10% (26.3 to 23.5).
About O M Tiffany Elementary - 11
O M Tiffany Elementary - 11 is a mid-sized elementary school found in Aberdeen, South Dakota. Students in kindergarten through 5 make up the school's enrollment of 304 students. That compares with an average of about 204 students for elementary schools in South Dakota.
Aberdeen School District 06-1 operates 10 schools. Combined enrollment is 4,241 students.
At O M Tiffany Elementary - 11, 63% of students are White. The remaining students are 17% Hispanic, 8% multiracial, 6% Native American, and 3% Black. Census figures show Brown County is about 85% White. Measured by the diversity index, the student body scores 56%.
With 23.5 full-time-equivalent teachers, the student-to-teacher ratio is about 12.9:1. The average for elementary schools in South Dakota is 15.4:1, so this school has fewer students per teacher. Student poverty is often measured by lunch eligibility; at O M Tiffany Elementary - 11, 55% qualify for free or reduced-price lunch. By comparison, the figure for public schools in Brown County is 35%.
Among South Dakota public elementary schools, O M Tiffany Elementary - 11 outscored 18%, which works out to a C- on the allk12 Grade.
The school's average proficiency rate across its state test results is 32.4%. For its free or reduced-price lunch share, the predicted value is 40.4%.
Five-year Census Bureau estimates for Brown County show that the median household earns about $70,898 a year, the share of adults with a bachelor's degree or higher is 34%, and roughly 7% of residents are in poverty. Across Brown County, 22 public schools serve about 5,354 students.
Of the public schools around it, O M Tiffany Elementary - 11 is closest to C C Lee Elementary - 05, about 0.8 miles away. The count of other public schools within five miles is at least 8. The average proficiency across nearby scored schools is 50.2%; O M Tiffany Elementary - 11's is 32.4%, ranking 6th of 6.
Under the NCES locale system, O M Tiffany Elementary - 11 is Town: Remote.
In 2024-25, the school enrolled 304, down from 324 in 2020-21.
The O M Tiffany Elementary - 11 discussion page is a place for special education services, counseling, and support programs. Teachers and staff are welcome to share updates too.
Brown County at a glance
View full county profilePopulation
37,877
Census ACS
Median income
$70,898
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
22
5,354 students
Quick facts
Related schools
Other schools in Aberdeen School District 06-1
- Central High School - 01High · 1,384 students
- Holgate Middle School - 02Middle · 497 students
- Simmons Middle School - 03Middle · 464 students
- Simmons Elementary - 10Elementary · 386 students
- C C Lee Elementary - 05Elementary · 356 students
- May Overby Elementary - 09Elementary · 327 students
Other schools in Aberdeen
- Central High School - 01High · 1,384 students
- Holgate Middle School - 02Middle · 497 students
- Simmons Middle School - 03Middle · 464 students
- Simmons Elementary - 10Elementary · 386 students
- C C Lee Elementary - 05Elementary · 356 students
- May Overby Elementary - 09Elementary · 327 students
Nearby schools
- C C Lee Elementary - 050.8 mi · 356
- Holgate Middle School - 020.9 mi · 497
- New Beginnings - 890.9 mi · 8
- Mike Miller Elementary - 071.6 mi · 282
- SDSBVI Elementary - 011.6 mi · 10
- SDSBVI High School - 021.6 mi · 9
Frequently asked questions
About O M Tiffany Elementary - 11How many students attend O M Tiffany Elementary - 11?
O M Tiffany Elementary - 11 enrolls approximately 304 students in grades KG-05.
What age range does O M Tiffany Elementary - 11 serve?
O M Tiffany Elementary - 11 serves students from grade KG through grade 05.
What is the student-teacher ratio at O M Tiffany Elementary - 11?
The student-to-teacher ratio at O M Tiffany Elementary - 11 is approximately 12.9:1 (24 FTE teachers).
What is the student diversity at O M Tiffany Elementary - 11?
Student demographics at O M Tiffany Elementary - 11 are roughly 63% White, 17% Hispanic, 3% Black, 2% Asian, 8% Two or more.
What district is O M Tiffany Elementary - 11 in?
O M Tiffany Elementary - 11 is part of Aberdeen School District 06-1.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.