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SCHOOL COMMUNITY·MAPLETON SCHOOL DISTRICT NO. 1 IN THE COUNTY OF ADAMS & ST·NCES 080555002007

Explore Pk-8

10310 YORK ST, THORNTON, CO 80229 · (303) 853-1300 · Adams County
GRADES PK–08ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL557 STUDENTS
Enrollment
557
Elementary
DISTRICT 368 · STATE 379
Student : Teacher
19.8:1
28 FTE teachers
DISTRICT 17.7:1 · STATE 16.6:1
Free / Reduced Lunch
63%
350 students
DISTRICT 71% · STATE 50%
Community
3
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Pre-K
61
Kindergarten
58
Grade 1
60
Grade 2
57
Grade 3
55
Grade 4
58
Grade 5
55
Grade 6
53
Grade 7
58
Grade 8
42
Student demographics
White
10819%
DISTRICT 13% · STATE 49%
Hispanic
37868%
DISTRICT 81% · STATE 37%
Black
81%
DISTRICT 1% · STATE 5%
Asian
407%
DISTRICT 3% · STATE 3%
Two+
214%
DISTRICT 2% · STATE 5%
Native American
10%
DISTRICT 0% · STATE 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
30354%
Female
25446%

Discussions

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Test scores

CMAS 2024-25 . % Met or Exceeded Expectations
English Language Arts
22.4%
CO avg 44.9% . +5.1pp since 2023
Math
15.3%
CO avg 36.1% . +1.9pp since 2023

What this means: On the CMAS, Colorado's statewide test, about 22 of every 100 students at this school read and write at grade level and about 15 of 100 do math at grade level. Across all Colorado schools, those numbers are about 45 and 36. Reading and writing scores are up about 5 points since 2023, while math scores are up about 2 points.

Source: CMAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
18.0%
composite math + reading, all grades
Predicted
28.6%
based on CO schools with similar FRL share
Beats by
-10.6pp
below demographic expectation

What this means: About 18% of students here test proficient in math and reading, compared with the roughly 29% typical for Colorado 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 Colorado'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 →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
557
+135 (+32%) vs 2017
Student : Teacher
19.8:1
was 21.1:1
% White
19%
was 26%
% Hispanic
68%
was 65%
% Black
1%
was 2%
% Asian
7%
was 1%
Source: NCES Common Core of Data

About Explore Pk-8

As a moderately sized primary school in THORNTON, Colorado, Explore Pk-8 educates 557 students from grades pre-K through 8, operated by Mapleton School District No. 1 in the county of Adams & St. Enrollment runs roughly 47% bigger than the state mean of about 379.

Mapleton School District No. 1 in the county of Adams & St comprises 20 schools with combined enrollment of 7,095 students; Explore Pk-8 is among them.

Demographically, Explore Pk-8 logs that Hispanic students make up the majority at 68%; the rest reads as 19% White, 7% Asian, 4% multiracial. By comparison, Adams County as a whole is about 43% Hispanic, so the school skews noticeably more Hispanic than its surroundings.

Looking at the economic backdrop, Staff filings list 28 full-time-equivalent teachers, which works out to roughly 19.8:1 students per teacher. That figure is higher than the state norm's 16.6:1 average. An estimated 63% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.

On a demographically-adjusted basis, Explore Pk-8 performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 28.6%, the actual is 18.0%, a residual of -10.6 points.

Around the school, Adams County reports that the typical household earns roughly $94,571 per year, 29% of adults hold a bachelor's degree or higher, and the poverty rate sits near 7%. Across Adams County's 171 public schools (combined enrollment of about 87,938 students), Explore Pk-8 is one campus in the mix.

Nearest neighbor: Leroy Elementary, around 0.8 miles off. Within five miles, there are 8 other public schools. On composite proficiency, Explore Pk-8 comes 4th of 8 in the immediate cluster, higher than the nearby-schools average of 17.8%.

Geographically, the school is in a commuter-belt area.

Looking at the recent track record. Looking back 7 years, enrollment at Explore Pk-8 has expanded 32%, going from 422 students in 2018 to 557 in 2025. White enrollment moved from 26% to 19% across the same window. The student-to-teacher ratio pulled in from 21.1:1 in 2018 to 19.8:1 today.

Inside the community feed, the feed for Explore Pk-8 typically covers science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.

Adams County at a glance

View full county profile
Population
530,225
Census ACS
Median income
$94,571
Household, ACS
Bachelor's+
29%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
171
87,938 students

Quick facts

School name
Explore Pk-8
District
Mapleton School District No. 1 in the county of Adams & St
Address
10310 YORK ST, THORNTON, CO 80229
Phone
(303) 853-1300
County
Adams County
Level
Elementary
Grade range
PK–08
Total enrollment
557
Teachers (FTE)
28
Student–teacher ratio
19.8:1
Free/Reduced lunch
350 (63%)
Locale
21-Suburb: Large
NCES ID
080555002007
Charter school
No
Virtual school
No

Related schools

Other schools in Mapleton School District No. 1 in the county of Adams & St
Other schools in THORNTON
Nearby schools

Frequently asked questions

About Explore Pk-8
How large is Explore Pk-8?
Explore Pk-8 enrolls approximately 557 students in grades PK-08.
What age range does Explore Pk-8 serve?
Explore Pk-8 serves students from grade PK through grade 08.
How many students per teacher at Explore Pk-8?
Approximately 19.8:1 students per teacher at Explore Pk-8.
How diverse is Explore Pk-8?
Explore Pk-8 reports a student body of 19% White, 68% Hispanic, 1% Black, 7% Asian, 4% Two or more.
Who oversees Explore Pk-8?
Explore Pk-8 is overseen by Mapleton School District No. 1 in the county of Adams & St in Adams County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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