Enrollment
274
Combined
STATE 488
SCHOOL COMMUNITY·CASTLEFORD DISTRICT·NCES 160069000137
CASTLEFORD SCHOOL
500 MAIN STREET, CASTLEFORD, ID 83321 · (208) 537-6511 · Twin Falls County
GRADES PK–12COMBINED42-RURALTITLE IREGULAR SCHOOL274 STUDENTS
C-
allk12 Grade
Scored higher than 19% of Idaho public K-12 schools
- C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- ·Beats expectations Not available for this school, so the grade uses the other parts.
- ·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 Idaho public K-12 schools
Student : Teacher
13.1:1
21 FTE teachers
STATE 31.4:1
Free / Reduced Lunch
72%
196 students
STATE 46%
Community
0
0 members
Enrollment and student:teacher ratio compared against other combined schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 1 | 0% |
| Kindergarten | 19 | 7% |
| Grade 1 | 16 | 6% |
| Grade 2 | 18 | 7% |
| Grade 3 | 26 | 9% |
| Grade 4 | 16 | 6% |
| Grade 5 | 23 | 8% |
| Grade 6 | 26 | 9% |
| Grade 7 | 14 | 5% |
| Grade 8 | 23 | 8% |
| Grade 9 | 33 | 12% |
| Grade 10 | 28 | 10% |
| Grade 11 | 13 | 5% |
| Grade 12 | 18 | 7% |
This year's kindergarten class (19) is 17% smaller than its 8th grade class (23).
Student demographics
47%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
STATE 44% · 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
ISAT 2024-25 . % ProficientEnglish Language Arts
38.0%
ID avg 53.4%
Math
35.6%
ID avg 43.5%
What this means: On the ISAT, Idaho's statewide test, about 38 of every 100 students at this school read and write at grade level and about 36 of 100 do math at grade level. Across all Idaho schools, those numbers are about 53 and 44.
Source: ISAT. All students, all grades. See all years and grades →
Schools most like CASTLEFORD SCHOOL
| School | Students | Low-income | Proficient |
|---|---|---|---|
| CASTLEFORD SCHOOL this school | 274 | 71.5% | N/A |
| RICHFIELD SCHOOL RICHFIELD | 208 | 73.1% | N/A |
| BLISS SCHOOL BLISS | 110 | 64.5% | N/A |
| MURTAUGH SCHOOLS MURTAUGH | 388 | 59.5% | N/A |
| MEADOWS VALLEY SCHOOL NEW MEADOWS | 142 | 69.7% | N/A |
| VALLEY SCHOOL HAZELTON | 493 | 58.4% | N/A |
Matched among Idaho K-12 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 CASTLEFORD SCHOOL ranks
Among K-12 schools| Measure | This school | In Idaho |
|---|---|---|
| Math proficiency ranked highest first | 35.6% | #18 of 22 |
| Reading proficiency ranked highest first | 38.0% | #20 of 22 |
| Enrollment ranked largest first | 274 | #11 of 36 |
| Students per teacher ranked fewest first | 13.1:1 | #5 of 14 |
| Diversity index ranked most diverse first | 46.5% | #3 of 14 |
| Free and reduced lunch ranked highest share first | 71.5% | #2 of 21 |
| Enrollment change since 2017-18 ranked steepest decline first | -9.6% | #5 of 6 |
Ranked against other public K-12 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
274
-62 (-18%) vs 2020
+26% since 1990-91, when it was 218
Student : Teacher
13.1:1
was 16.0:1
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 | 274 | 21 | 13.1:1 | 72% (196) |
| 2023-24 | 302 | 20.8 | 14.6:1 | 66% (200) |
| 2022-23 | 306 | 21 | 14.6:1 | 66% (203) |
| 2020-21 | 336 | 21 | 16.0:1 | 60% (202) |
| 2017-18 | 303 | 21.8 | 13.9:1 | 57% (172) |
| 2015-16 | 310 | 21 | 14.8:1 | 55% (170) |
| 2010-11 | 266 | 19 | 14.0:1 | 63% (168) |
| 2000-01 | 354 | 22 | 16.1:1 | 48% (171) |
| 1990-91 | 218 | 13 | 16.8:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for CASTLEFORD SCHOOL.
Since 2017-18: students down 10% (303 to 274); teachers down 4% (21.8 to 21).
About CASTLEFORD SCHOOL
CASTLEFORD SCHOOL is a low-enrollment school serving multiple grade levels with an address in CASTLEFORD, Idaho. Enrollment totals 274 students across pre-K through 12. The school is 44% below the average for combined schools in Idaho.
The school's district is CASTLEFORD DISTRICT.
The share of White students at CASTLEFORD SCHOOL is 63%, a majority. Smaller groups are 37% Hispanic. For comparison, the population of Twin Falls County is roughly 79% White. On a 0 to 100 scale, the school's diversity index is 47, compared with 70 nationally.
There are 21 full-time-equivalent teachers at CASTLEFORD SCHOOL, giving a ratio of 13.1:1. The school's 13.1:1 compares with an average of 31.4:1 for combined schools in Idaho. By family income, 72% of students are eligible for free or reduced-price lunch. The gap from the 44% average for public schools in Twin Falls County is 28 points.
CASTLEFORD SCHOOL earns a C- on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 19% of Idaho public K-12 schools.
For the population of Twin Falls County, median household income comes to about $67,409, roughly 24% of adults have a four-year degree or more, and about 8% of residents live below the federal poverty line. Twin Falls County's 41 public schools enroll about 16,273 students and include CASTLEFORD SCHOOL.
BUHL HIGH SCHOOL is the nearest public school to CASTLEFORD SCHOOL, about 8.2 miles away. Other public schools within ten miles number 4.
Federal data place CASTLEFORD SCHOOL in the Rural: Distant locale, which means it is in rural territory some distance from an urban area.
Over the 4 years from 2020-21 to 2024-25, enrollment fell 18%. Its ratio of students to teachers was 16.0:1 in 2020-21, and 13.1:1 in 2024-25.
This community page is for conversations about fundraisers, report cards, and school supplies. You can also rate the school on this page.
Twin Falls County at a glance
View full county profilePopulation
93,734
Census ACS
Median income
$67,409
Household, ACS
Bachelor's+
24%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
41
16,273 students
Quick facts
Related schools
Nearby schools
- BUHL HIGH SCHOOL8.2 mi · 347
- POPPLEWELL ELEMENTARY SCHOOL8.3 mi · 542
- BUHL MIDDLE SCHOOL8.4 mi · 298
- WAKAPA ACADEMY8.4 mi · 11
- FILER INTERMEDIATE SCHOOL13.5 mi · 345
- FILER ELEMENTARY SCHOOL13.6 mi · 397
Frequently asked questions
About CASTLEFORD SCHOOLHow many students attend CASTLEFORD SCHOOL?
CASTLEFORD SCHOOL enrolls approximately 274 students in grades PK-12.
Is CASTLEFORD SCHOOL an elementary, middle, or high school?
CASTLEFORD SCHOOL is a combined-grade school covering grades PK-12.
How many teachers does CASTLEFORD SCHOOL have?
CASTLEFORD SCHOOL employs 21 FTE teachers, for a student-to-teacher ratio of 13.1:1.
What is the student diversity at CASTLEFORD SCHOOL?
Student demographics at CASTLEFORD SCHOOL are roughly 63% White, 37% Hispanic.
Who oversees CASTLEFORD SCHOOL?
CASTLEFORD SCHOOL is overseen by CASTLEFORD DISTRICT in Twin Falls County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.