Stone Mill Elementary

Summary:

Stone Mill Elementary is a highly-rated public elementary school in North Potomac, Maryland, serving students from pre-kindergarten through 5th grade as part of the Montgomery County Public Schools district.

Stone Mill Elementary consistently outperforms the district and state averages in both Mathematics and English Language Arts (ELA) assessments, with 74.4% of students proficient or better in Mathematics and 79.3% proficient or better in ELA. The school's performance is particularly strong in 4th grade ELA, where 84.4% of students were proficient or better, compared to 55.9% for the district and 49.3% for the state. Stone Mill also excels in supporting the academic achievement of various student subgroups, including female students, male students, Asian students, African American students, English Language Learners, and students with special needs.

Compared to nearby schools, Cold Spring Elementary and Travilah Elementary also stand out for their strong academic performance, while Summit Hall Elementary has significantly lower proficiency rates. Stone Mill Elementary's relatively high per-student spending of $17,789 and low percentage of students receiving free or reduced-price lunch (15.27%) may contribute to its exceptional academic performance.


Detail:

Public PK, KG-5

 14323 Stonebridge View Dr
       North Potomac, MD  20878


(240) 740-5450

District: Montgomery County Public Schools

SchoolDigger Rank:
24th of 859 Maryland Elementary Schools

Per Pupil Expenditures:  $18,528 Help


Students who attend Stone Mill Elementary usually attend:

Middle:    Cabin John Middle
High:    Thomas S. Wootton High

Student/teacher ratio:  14.5 Help
Number of students:  550

Racial breakdown:

Asian:
49.1%
White:
22.4%
African American:
12.9%
more

Free/discounted lunch recipients:  15.3% Help


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Performance Trends
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Compare Details Stone Mill Elementary ranks better than 97.2% of elementary schools in Maryland. It also ranks 10th among 130 ranked elementary schools in the Montgomery County Public Schools District. (See more...)
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Compare Details In 2024 the calculated Average Standard Score was 96.35. (See more...)
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Chronic absenteeism in a school refers to a situation where students repeatedly miss school, with the threshold often defined as missing 10% or more of school days for any reason, excused or unexcused.
Student Body
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Compare Details Student population at Stone Mill Elementary is diverse. Racial makeup is: Asian (49.1%), White (22.4%), African American (12.9%). (See more...)
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Compare Details 15.3% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Stone Mill Elementary is 14.5. 91 elementary schools in the Montgomery County Public Schools District have better student/teacher ratios. (See more...)
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Compare Stone Mill Elementary employs 37.8 full-time teachers.
Finance
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Compare Details The average total spent per student at Stone Mill Elementary is $18,528. 92 elementary schools in the Montgomery County Public Schools District spend more per student.
Schooldigger Rankings:

Stone Mill Elementary was not ranked this year due to insufficient test score data.

Montgomery County Public Schools:

SchoolDigger ranks Montgomery County Public Schools 7th of 25 Maryland school districts. (See district ranking list.)


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Rank History for Stone Mill Elementary

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Rank History for all students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2004 2.40 781st 803 2.7%
2005 2.05 789th 805 2.0%
2006 3.17 782nd 804 2.7%
2007 2.04 805th 818 1.6%
2008 83.82 73rd 838 91.3%
2009 82.99 84th 850 90.1%
2010 87.50 20th 855 97.7%
2011 86.30 38th 853 95.5%
2012 86.55 14th 857 98.4%
2013 83.85 63rd 847 92.6%
2014 86.70 46th 867 94.7%
2015 96.82 13th 859 98.5%
2016 97.34 7th 845 99.2%
2017 97.10 14th 847 98.3%
2018 96.58 24th 857 97.2%
2019 97.31 14th 853 98.4%
2021 96.83 28th 802 96.5%
2022 96.37 23rd 862 97.3%
2023 96.81 20th 855 97.7%
2024 96.35 24th 859 97.2%
See the entire list of Maryland Elementary School Rankings!

Rank History for English Language Learner students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 88.11 7th 115 93.9%
See the entire list of Best Maryland Elementary Schools for English Language Learner Students!

Rank History for Special Education students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 93.14 3rd 136 97.8%
See the entire list of Best Maryland Elementary Schools for Special Education Students!

Rank History for Female students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 93.37 35th 796 95.6%
See the entire list of Best Maryland Elementary Schools for Female Students!

Rank History for Male students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 97.35 15th 788 98.1%
See the entire list of Best Maryland Elementary Schools for Male Students!

Rank History for Asian students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 73.74 28th 128 78.1%
See the entire list of Best Maryland Elementary Schools for Asian Students!

Rank History for African American students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 96.85 10th 504 98.0%
See the entire list of Best Maryland Elementary Schools for African American Students!

Rank History for White students at Stone Mill Elementary

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools MD State Percentile SchoolDigger Rating
2021 79.84 86th 528 83.7%
See the entire list of Best Maryland Elementary Schools for White Students!

Data source: test scores: Maryland State Department of Education, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Stone Mill Elementary Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
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Data source: Maryland State Department of Education

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Enrollment information for Stone Mill Elementary

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1989 279 62 107 16 0 n/a n/a 0 464
1990 382 104 159 27 4 n/a n/a -3 673
1991 464 88 188 25 2 n/a n/a 0 767
1992 454 63 216 18 2 n/a n/a 0 753
1993 448 49 235 11 2 n/a n/a 0 745
1994 474 44 239 11 2 n/a n/a 0 770
1995 433 35 194 14 0 n/a n/a 0 676
1996 433 35 194 14 0 n/a n/a 0 676
1997 414 44 177 12 2 n/a n/a 0 649
1998 407 32 179 11 1 n/a n/a 0 630
1999 400 38 186 15 1 n/a n/a 0 640
2000 400 65 213 23 1 n/a n/a 0 702
2001 394 69 258 33 6 n/a n/a 0 760
2002 342 60 291 25 0 n/a n/a 0 718
2003 342 60 291 25 0 n/a n/a 0 718
2004 299 50 305 19 0 n/a n/a 0 673
2005 301 59 295 25 1 n/a n/a 0 681
2006 286 65 295 35 2 n/a n/a 0 683
2007 259 56 292 27 1 n/a n/a 0 635
2008 264 52 302 22 2 n/a n/a 0 642
2009 253 50 289 16 0 n/a n/a 0 608
2010 236 46 285 26 0 n/a n/a 0 593
2011 215 53 285 29 0 0 26 0 608
2012 199 68 272 31 1 0 27 0 598
2013 193 85 281 41 1 0 27 0 628
2014 181 91 298 34 1 0 27 0 632
2015 177 72 307 36 0 0 24 0 616
2016 183 81 317 35 0 0 28 0 644
2017 167 69 307 45 0 0 30 0 618
2018 156 66 306 37 0 0 36 0 601
2019 154 73 312 40 1 0 33 0 613
2020 152 83 270 52 0 0 31 0 588
2021 129 74 245 43 0 0 30 0 521
2022 117 74 257 53 1 0 40 0 542
2023 123 71 270 41 1 0 44 0 550

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Stone Mill Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1989 464 23.3 19.9 n/a
1990 673 31.3 21.5 7.9
1991 767 35.3 21.7 6.4
1992 753 33.9 22.2 4.4
1993 745 34.9 21.3 4.4
1994 770 37.9 20.3 2.9
1995 676 32.5 20.8 5
1996 676 32.5 20.8 5
1997 649 31.7 20.5 5.7
1998 630 32.5 19.4 5.9
1999 640 32.5 19.7 6.6
2000 702 35.2 19.9 10
2001 760 40.3 18.9 9.7
2002 718 38.9 18.5 6
2003 718 38.9 18.5 6
2004 673 37.0 18.2 5.3
2005 681 36.0 18.9 5.6
2006 683 40.0 17.1 5.9
2007 635 39.8 16.0 6.9
2008 642 39.8 16.1 5.3
2009 608 39.5 15.4 5.3
2010 593 37.8 15.6 5.4
2011 608 37.2 16.3 9.2
2012 598 37.6 15.9 10.4
2013 628 38.5 16.3 13.5
2014 632 39.8 15.8 12.7
2015 616 39.0 15.7 9.3
2016 644 39.0 16.5 9.3
2017 618 38.0 16.2 10.5
2018 601 37.0 16.2 9.7
2019 613 35.3 17.3 9.6
2020 588 34.6 16.9 10.7
2021 521 36.3 14.3 10
2022 542 36.5 14.8 10.1
2023 550 37.8 14.5 15.3

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Stone Mill Elementary

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1989 464 23.3 19.9 n/a
1990 673 31.3 21.5 7.9
1991 767 35.3 21.7 6.4
1992 753 33.9 22.2 4.4
1993 745 34.9 21.3 4.4
1994 770 37.9 20.3 2.9
1995 676 32.5 20.8 5
1996 676 32.5 20.8 5
1997 649 31.7 20.5 5.7
1998 630 32.5 19.4 5.9
1999 640 32.5 19.7 6.6
2000 702 35.2 19.9 10
2001 760 40.3 18.9 9.7
2002 718 38.9 18.5 6
2003 718 38.9 18.5 6
2004 673 37.0 18.2 5.3
2005 681 36.0 18.9 5.6
2006 683 40.0 17.1 5.9
2007 635 39.8 16.0 6.9
2008 642 39.8 16.1 5.3
2009 608 39.5 15.4 5.3
2010 593 37.8 15.6 5.4
2011 608 37.2 16.3 9.2
2012 598 37.6 15.9 10.4
2013 628 38.5 16.3 13.5
2014 632 39.8 15.8 12.7
2015 616 39.0 15.7 9.3
2016 644 39.0 16.5 9.3
2017 618 38.0 16.2 10.5
2018 601 37.0 16.2 9.7
2019 613 35.3 17.3 9.6
2020 588 34.6 16.9 10.7
2021 521 36.3 14.3 10
2022 542 36.5 14.8 10.1
2023 550 37.8 14.5 15.3

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.
Finances

Per Pupil Expenditures for Stone Mill Elementary

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YearExpenditures from Federal FundsExpenditures from State and Local FundsTotal Expenditures Per Pupil (All Funds)
2019 $428 (2.9%) $14,182 (97.1%) $14,611
2020 $450 (3.0%) $14,544 (97.0%) $14,994
2021 $827 (4.6%) $16,962 (95.4%) $17,789
2022 $1,506 (9.0%) $15,265 (91.0%) $16,771
2023 $1,058 (5.7%) $17,470 (94.3%) $18,528

Data source: Maryland Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Stone Mill Elementary

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Post pandemic (2022-2023)
Change (%)
Ranks 14th of 853 Elementary schoolsRanks 20th of 855 Elementary schools
 0.7%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students613550
 10.3%
African American7371
 2.7%
American Indian11
Asian312270
 13.5%
Hispanic4041
 2.5%
Pacific Islander00
White154123
 20.1%
Two or More Races3344
 33.3%
% Free/Discounted Lunch Recipients9.6%15.3%
 5.6%


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Frequently Asked Questions about Stone Mill Elementary

In the 2022-23 school year, 550 students attended Stone Mill Elementary.

Students who attend Stone Mill Elementary usually go on to attend:

Middle : Cabin John Middle
High : Thomas S. Wootton High

Students at Stone Mill Elementary are 49% Asian, 22% White, 13% African American, 8% Two or more races, 7% Hispanic.

Yes! Stone Mill Elementary is one of the best elementary schools in the state. It ranks 24th of 859 Maryland elementary schools.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Maryland State Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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