Standley Lake High School (Ranked Top 30% for 2025-26)

9300 West 104th Avenue
Broomfield, CO 80021

( shown in map)

Top 30%

Standley Lake High School is a public secondary school operated by Jefferson County School District R-1 in Westminster, Colorado, United States. The school is located near 104th Avenue and Wadsworth Boulevard and is named for nearby Standley Lake.

Serving 1,137 students in grades 9-12, Standley Lake High School ranks in the top 30% of all schools in Colorado for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).

The percentage of students achieving is 43% (which is higher than the Colorado state average of 33%). The percentage of students achieving is 65% (which is higher than the Colorado state average of 45%).

The student-teacher ratio of 19:1 is higher than the Colorado state level of 15:1.

Minority enrollment is 39% of the student body (majority Hispanic), which is lower than the Colorado state average of 50% (majority Hispanic).

Quick Facts (2025-26)

Grades: 9-12
Enrollment: 1,137 students
Student-Teacher Ratio: 19:1
Minority Enrollment: 39%
: 92% (Top 20% in CO)
: Top 30%
: 43% (Top 30%)
: 65% (Top 20%)
: 29% (Top 50%)
Source: National Center for Education Statistics (NCES), CO Dept. of Education

Top Rankings

Standley Lake High School ranks among the top 20% of public schools in Colorado for:

School Overview

Standley Lake High School's student population of 1,137 students has declined by 15% over five school years.

The teacher population of 61 teachers has declined by 17% over five school years.

Grades Offered

Grades 9-12
(No virtual instruction)

View Data

Distribution of Students By Grade Trends
Grade	Standley Lake High School
9	293
10	290
11	301
12	253

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Total Students

1,137 students

View Data

Total Students Trends Over Years (1993-2023)
Year	Standley Lake High School
2023	1,180
2022	1,221
2021	1,295
2020	1,350
2019	1,350
2018	1,303
2017	1,303
2016	1,317
2015	1,290
2014	1,346
2013	1,391
2012	1,470
2011	1,479
2010	1,535
2009	1,585
2008	1,572
2007	1,637
2006	1,630
2005	1,661
2004	1,698
2003	1,788
2002	1,814
2001	1,852
2000	1,853
1999	1,759
1998	1,779
1997	1,700
1996	1,629
1995	1,594
1994	1,574
1993	1,524

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Gender %

Total Classroom Teachers

61 teachers

View Data

Total Classroom Teachers Trends Over Years (1993-2023)
Year	Standley Lake High School
2023	63
2022	66
2021	68
2020	74
2019	74
2018	66
2017	66
2016	66
2015	68
2014	80
2013	75
2012	76
2011	78
2010	81
2009	83
2008	80
2007	80
2006	80
2005	81
2004	85
2003	88
2002	89
2001	84
2000	83
1999	84
1998	84
1997	78
1996	77
1995	77
1994	70
1993	70

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Year Founded

1988

Colors

White, Blue, Green, Blue/Green/White

School Calendar

Last Day of School

Mon. May 25, 2026

School Motto

'Gator Strong'

School Rankings

Standley Lake High School ranks within the top 30% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).

The of Standley Lake High School is 0.56, which is less than the diversity score at state average of 0.62. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CO)

#353 out of 1748 schools
(Top 30%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Standley Lake High School
2023	#353
2022	#328
2021	#480
2019	#206
2018	#511
2017	#828
2016	#965
2015	#723
2014	#1064
2013	#810
2012	#990

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43%

33%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	43%	33%	40%
2022	45%	32%	38%
2021	38%	33%	36%
2019	52%	35%	41%
2018	46%	35%	42%
2017	32%	33%	40%
2016	26%	33%	40%
2015	32%	31%	39%
2014	43%	57%	63%
2013	48%	57%	63%
2012	45%	56%	62%

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65%

45%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2022	65%	45%	52%
2021	61%	47%	53%
2019	70%	47%	54%
2018	51%	44%	42%
2017	41%	42%	49%
2016	36%	40%	46%
2015	38%	40%	49%
2014	71%	69%	76%
2013	80%	70%	77%
2012	73%	70%	76%
2011	95%	89%	94%

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(20-21)

29%

Student-Teacher Ratio

19:1

15:1

View Data

Student-Teacher Ratio Comparison Over Years (1993-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	19:1	16:1	16:1
2022	19:1	15:1	16:1
2021	19:1	15:1	17:1
2020	18:1	16:1	18:1
2019	18:1	16:1	18:1
2018	20:1	17:1	18:1
2017	20:1	17:1	18:1
2016	20:1	17:1	18:1
2015	19:1	17:1	18:1
2014	17:1	17:1	18:1
2013	19:1	17:1	18:1
2012	19:1	17:1	18:1
2011	19:1	17:1	18:1
2010	19:1	16:1	18:1
2009	19:1	16:1	17:1
2008	20:1	16:1	18:1
2007	20:1	17:1	18:1
2006	20:1	16:1	18:1
2005	21:1	17:1	19:1
2004	20:1	16:1	19:1
2003	20:1	16:1	18:1
2002	20:1	17:1	19:1
2001	22:1	17:1	20:1
2000	22:1	17:1	21:1
1999	21:1	17:1	21:1
1998	21:1	18:1	21:1
1997	22:1	18:1	21:1
1996	21:1	18:1	21:1
1995	21:1	18:1	21:1
1994	22:1	18:1	22:1
1993	22:1	18:1	21:1

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American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (1990-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	1%	1%
2022	1%	1%	1%
2021	1%	1%	1%
2020	1%	1%	2%
2019	1%	1%	2%
2013	1%	1%	1%
2011	1%	1%	2%
2010	2%	1%	2%
2009	1%	1%	1%
2008	1%	2%	1%
2007	2%	1%	1%
2006	1%	1%	1%
2005	1%	1%	1%
2003	1%	1%	1%
2002	1%	1%	1%
2001	1%	1%	2%
1999	1%	1%	1%
1998	1%	1%	1%
1996	1%	1%	1%
1995	1%	1%	1%
1994	1%	1%	1%
1993	1%	1%	1%
1992	1%	1%	1%
1991	1%	1%	1%
1990	1%	1%	1%

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Asian

View Data

Asian Student Percentage Comparison Over Years (1993-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	6%	3%	4%
2022	6%	3%	3%
2021	7%	3%	3%
2020	8%	3%	3%
2019	8%	3%	3%
2018	7%	3%	3%
2017	7%	3%	3%
2016	7%	3%	3%
2015	8%	3%	4%
2014	8%	3%	3%
2013	8%	3%	3%
2012	9%	3%	3%
2011	7%	3%	3%
2010	8%	4%	4%
2009	8%	4%	4%
2008	7%	3%	4%
2007	7%	3%	4%
2006	8%	3%	4%
2005	8%	3%	4%
2004	9%	3%	4%
2003	7%	3%	4%
2002	7%	3%	3%
2001	7%	3%	3%
2000	8%	3%	3%
1999	7%	3%	3%
1998	5%	3%	3%
1997	5%	3%	3%
1996	5%	3%	3%
1995	4%	3%	3%
1994	4%	2%	3%
1993	4%	2%	3%

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Hispanic

26%

36%

View Data

Hispanic Student Percentage Comparison Over Years (1993-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	25%	35%	26%
2022	22%	35%	25%
2021	20%	34%	25%
2020	20%	34%	23%
2019	20%	34%	23%
2018	22%	34%	25%
2017	22%	34%	25%
2016	20%	33%	25%
2015	18%	33%	26%
2014	17%	33%	24%
2013	17%	32%	24%
2012	18%	32%	24%
2011	20%	32%	23%
2010	14%	29%	19%
2009	13%	28%	19%
2008	13%	28%	19%
2007	12%	28%	18%
2006	12%	27%	17%
2005	12%	26%	16%
2004	11%	25%	15%
2003	11%	24%	14%
2002	10%	23%	13%
2001	9%	22%	12%
2000	8%	21%	11%
1999	9%	20%	10%
1998	9%	19%	10%
1997	9%	19%	9%
1996	9%	18%	9%
1995	8%	18%	8%
1994	10%	17%	8%
1993	9%	17%	8%

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Black

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	1%	5%	1%
2022	2%	4%	1%
2021	1%	5%	1%
2020	1%	5%	1%
2019	1%	5%	1%
2016	1%	5%	1%
2015	1%	5%	1%
2014	2%	5%	1%
2013	2%	5%	1%
2012	1%	5%	1%
2011	1%	5%	1%
2010	2%	6%	2%
2009	2%	6%	2%
2008	2%	6%	2%
2007	2%	6%	2%
2006	2%	6%	2%
2005	1%	6%	2%
2004	1%	6%	2%
2003	1%	6%	2%
2002	1%	6%	2%
2001	1%	6%	1%
2000	1%	5%	1%
1999	1%	5%	1%
1998	1%	5%	1%
1997	1%	5%	1%
1996	1%	5%	1%
1995	1%	4%	1%
1994	1%	5%	1%
1993	1%	5%	1%
1992	1%	5%	1%
1991	1%	5%	1%

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White

61%

50%

View Data

White Student Percentage Comparison Over Years (1993-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	62%	51%	65%
2022	64%	52%	66%
2021	66%	52%	66%
2020	65%	53%	67%
2019	65%	53%	67%
2018	67%	53%	67%
2017	67%	53%	67%
2016	69%	54%	68%
2015	70%	54%	66%
2014	69%	55%	68%
2013	69%	56%	68%
2012	68%	56%	68%
2011	67%	57%	68%
2010	74%	60%	73%
2009	76%	61%	74%
2008	77%	61%	74%
2007	77%	62%	75%
2006	77%	63%	76%
2005	78%	64%	77%
2004	79%	65%	78%
2003	80%	66%	79%
2002	81%	67%	81%
2001	82%	68%	82%
2000	83%	70%	84%
1999	82%	71%	85%
1998	84%	72%	85%
1997	85%	72%	86%
1996	84%	73%	86%
1995	86%	74%	87%
1994	84%	75%	87%
1993	85%	75%	87%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	5%	5%	4%
2022	5%	5%	4%
2021	5%	5%	4%
2020	5%	4%	4%
2019	5%	4%	4%
2018	4%	4%	4%
2017	4%	4%	4%
2016	3%	4%	3%
2015	3%	4%	3%
2014	4%	3%	3%
2013	3%	3%	3%

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All Ethnic Groups

0.56

0.62

View Data

Diversity Score Comparison Over Years (1993-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	0.55	0.62	0.51
2022	0.54	0.61	0.51
2021	0.52	0.61	0.51
2020	0.53	0.60	0.49
2019	0.53	0.60	0.49
2018	0.50	0.60	0.49
2017	0.50	0.60	0.49
2016	0.48	0.60	0.48
2015	0.47	0.60	0.49
2014	0.49	0.59	0.49
2013	0.49	0.59	0.49
2012	0.50	0.59	0.49
2011	0.51	0.58	0.48
2010	0.43	0.55	0.43
2009	0.40	0.55	0.42
2008	0.39	0.55	0.42
2007	0.39	0.54	0.40
2006	0.38	0.53	0.39
2005	0.37	0.52	0.38
2004	0.36	0.52	0.37
2003	0.35	0.51	0.35
2002	0.33	0.50	0.33
2001	0.32	0.49	0.31
2000	0.30	0.47	0.29
1999	0.31	0.46	0.27
1998	0.29	0.46	0.26
1997	0.27	0.45	0.25
1996	0.29	0.45	0.24
1995	0.25	0.43	0.23
1994	0.29	0.41	0.22
1993	0.27	0.41	0.22

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92%

82%

View Data

Graduation Rate Comparison Over Years (2013-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	92%	82%	87%
2022	90%	82%	85%
2021	87%	81%	86%
2020	90%	81%	85%
2019	88%	80%	85%
2018	88%	80%	85%
2017	88%	78%	83%
2016	84%	78%	83%
2015	87%	77%	83%
2014	86%	77%	83%
2013	85%	77%	81%

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Eligible for

30%

39%

View Data

Free Lunch Eligibility Comparison Over Years (1993-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	28%	33%	26%
2022	21%	30%	23%
2021	22%	33%	25%
2020	21%	33%	24%
2019	21%	33%	24%
2018	20%	35%	25%
2017	20%	35%	25%
2016	20%	34%	23%
2015	17%	34%	24%
2014	20%	35%	25%
2013	20%	34%	26%
2012	17%	34%	25%
2011	17%	33%	25%
2010	14%	31%	23%
2009	9%	28%	19%
2008	12%	28%	19%
2007	11%	27%	19%
2006	12%	27%	19%
2005	8%	25%	15%
2004	6%	24%	13%
2003	5%	22%	11%
2002	5%	21%	10%
2001	4%	20%	9%
2000	4%	21%	10%
1999	5%	21%	10%
1998	4%	22%	10%
1997	4%	22%	10%
1996	3%	22%	10%
1995	3%	22%	10%
1994	4%	21%	10%
1993	2%	20%	9%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2003-2023)
Year	Standley Lake High School	Colorado	Jefferson County School District No. R-1
2023	7%	7%	7%
2022	7%	6%	6%
2021	8%	7%	6%
2020	10%	8%	7%
2019	10%	8%	7%
2018	8%	8%	7%
2017	8%	8%	7%
2016	8%	7%	6%
2015	9%	7%	6%
2014	10%	7%	7%
2013	10%	7%	7%
2012	9%	7%	7%
2011	5%	7%	5%
2010	6%	7%	6%
2009	6%	7%	6%
2008	6%	7%	6%
2007	5%	7%	5%
2006	4%	6%	5%
2005	5%	6%	5%
2004	4%	6%	5%
2003	3%	7%	5%

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School Statewide Testing

School District Name

Jefferson County School District No. R-1

Source: National Center for Education Statistics (NCES), CO Dept. of Education

School Notes

School Mascot: Alligators

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Standley Lake High School's ranking?

Standley Lake High School is ranked #353 out of 1,748 schools, which ranks it among the top 30% of public schools in Colorado.

What schools are Standley Lake High School often compared to?

Standley Lake High Schoolis often viewed alongside schools like Ralston Valley Senior High School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

43% of students have achieved math proficiency (compared to the 33% CO state average), while 65% of students have achieved reading proficiency (compared to the 45% CO state average).

What is the graduation rate of Standley Lake High School?

The graduation rate of Standley Lake High School is 92%, which is higher than the Colorado state average of 82%.

How many students attend Standley Lake High School?

1,137 students attend Standley Lake High School.

What is the racial composition of the student body?

61% of Standley Lake High School students are White, 26% of students are Hispanic, 6% of students are Asian, 6% of students are Two or more races, and 1% of students are Black.

What is the student-teacher ratio of Standley Lake High School?

Standley Lake High School has a student ration of 19:1, which is higher than the Colorado state average of 15:1.

What grades does Standley Lake High School offer ?

Standley Lake High School offers enrollment in grades 9-12 (No virtual instruction).

What school district is Standley Lake High School part of?

Standley Lake High School is part of Jefferson County School District No. R-1.

In what neighborhood is Standley Lake High School located?

Standley Lake High School is located in the West Westminster neighborhood of Broomfield, CO. There are 4 other public schools located in West Westminster.