For the 2026 school year, there are 4 public schools serving 1,621 students in New Castle, CO (there are , serving 161 private students). 91% of all K-12 students in New Castle, CO are educated in public schools (compared to the CO state average of 92%).
The top-ranked public schools in New Castle, CO are Coal Ridge High School, Kathryn Senor Elementary School and Elk Creek Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
New Castle, CO public schools have an average math proficiency score of 21% (versus the Colorado public school average of 33%), and reading proficiency score of 41% (versus the 45% statewide average). Schools in New Castle have an average ranking of 4/10, which is in the bottom 50% of Colorado public schools.
Minority enrollment is 50% of the student body (majority Hispanic), which is equal to the Colorado public school average of 50% (majority Hispanic).
Best Public Schools in New Castle, CO (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Coal Ridge High School
(Math: 20-24% | Reading: 50-54%)
Rank:
Rank:
6/
Top 50%10
35947 Highway 6
New Castle, CO 81647
(970) 625-6700
New Castle, CO 81647
(970) 625-6700
Gr: 9-12 | 629 students Student-teacher ratio: 22:1 Minority enrollment: 51%
Rank: #22.
Kathryn Senor Elementary School
(Math: 25-29% | Reading: 35-39%)
Rank:
Rank:
5/
Bottom 50%10
101 Alder Avenue
New Castle, CO 81647
(970) 665-7700
New Castle, CO 81647
(970) 665-7700
Gr: PK-5 | 286 students Student-teacher ratio: 12:1 Minority enrollment: 49%
Rank: #33.
Elk Creek Elementary School
(Math: 20-24% | Reading: 40-44%)
Rank:
Rank:
5/
Bottom 50%10
804 West Main Street
New Castle, CO 81647
(970) 665-6900
New Castle, CO 81647
(970) 665-6900
Gr: PK-5 | 266 students Student-teacher ratio: 14:1 Minority enrollment: 52%
Rank: #44.
Riverside School
(Math: 18% | Reading: 39%)
Rank:
Rank:
4/
Bottom 50%10
215 Alder Avenue
New Castle, CO 81647
(970) 665-7800
New Castle, CO 81647
(970) 665-7800
Gr: 6-8 | 440 students Student-teacher ratio: 13:1 Minority enrollment: 48%
Frequently Asked Questions
What are the top-ranked public schools in New Castle, CO?
The top-ranked public schools in New Castle, CO include Coal Ridge High School, Kathryn Senor Elementary School and Elk Creek Elementary School.
How many public schools are located in New Castle?
4 public schools are located in New Castle.
What percentage of students in New Castle go to public school?
91% of all K-12 students in New Castle are educated in public schools (compared to the CO state average of 92%).
What is the racial composition of students in New Castle?
New Castle public schools minority enrollment is 50% of the student body (majority Hispanic), which is equal to the Colorado public schools average of 50% (majority Hispanic).
Which public schools in New Castle are often viewed compared to one another?
Popular comparisons of public schools in New Castle include: Kathryn Senor Elementary School vs. Elk Creek Elementary School, Elk Creek Elementary School vs. Kathryn Senor Elementary School
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