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SCHOOL COMMUNITY·TIMBERLANE REGIONAL SCHOOL DISTRICT·NCES 330672000439

Timberlane Regional High School

36 Greenough Rd., Plaistow, NH 03865 · (603) 382-6541 · Rockingham County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL944 STUDENTS
C-
allk12 Grade
Scored higher than 18% of New Hampshire public high schools
  • CTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • DBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·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 New Hampshire public high schools

Enrollment
944
High
DISTRICT 461 · STATE 496
Student : Teacher
11.4:1
83 FTE teachers
DISTRICT 11.0:1 · STATE 11.2:1
Free / Reduced Lunch
11%
101 students
DISTRICT 11% · STATE 26%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 921122%
Grade 1023024%
Grade 1124126%
Grade 1226228%
Student demographics
21%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 24% · STATE 33% · US 70%
White
83588%
DISTRICT 87% · STATE 81% · US 43%
Hispanic
505%
DISTRICT 6% · STATE 8% · US 30%
Black
101%
DISTRICT 1% · STATE 2% · US 15%
Asian
91%
DISTRICT 1% · STATE 3% · US 6%
Two+
354%
DISTRICT 5% · STATE 5% · US 5%
Native American
51%
DISTRICT 0% · STATE 0% · US 1%
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
Male
50053%
Female
44447%

School pathway

Feeds from
Timberlane Regional Middle School06–08
Based on grade levels within Timberlane Regional School District. Attendance zones can vary; confirm enrollment with the district.

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Test scores

NHSAS 2024-25 . % Above Proficient
English Language Arts
60.0%
NH avg 55.2%
Math
24.0%
NH avg 43.0%

What this means: On the NHSAS, New Hampshire's statewide test, about 60 of every 100 students at this school read and write at grade level and about 24 of 100 do math at grade level. Across all New Hampshire schools, those numbers are about 55 and 43.

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

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of NH schools after controlling for student poverty
Actual proficiency
37.7%
composite math + reading, all grades
Predicted
56.7%
based on NH schools with similar FRL share
Beats by
-19.0pp
below demographic expectation

What this means: About 38% of students here test proficient in math and reading, below the roughly 57% typical for New Hampshire schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Timberlane Regional High School

Timberlane Regional High School's state test result (37.7% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Timberlane Regional High School this school94410.7%37.7%
Goffstown High School
Goffstown
1,00810.4%55.7%
Londonderry Senior High School
Londonderry
1,28910.9%55.3%
Merrimack High School
Merrimack
1,05711.0%47.7%
Milford High School
Milford
65514.4%39.3%
Souhegan Coop High School
Amherst
6966.9%59.3%
Matched among New Hampshire high 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 Timberlane Regional High School ranks

Among high schools
MeasureThis schoolIn New HampshireIn Rockingham County
State test proficiency
ranked highest first
37.7%#52 of 78#14 of 14
Math proficiency
ranked highest first
24.0%#47 of 74#11 of 14
Reading proficiency
ranked highest first
60.0%#51 of 78#14 of 14
Enrollment
ranked largest first
944#20 of 103#8 of 17
Students per teacher
ranked fewest first
11.4:1#24 of 68#6 of 13
Diversity index
ranked most diverse first
21.3%#31 of 68#6 of 13
Free and reduced lunch
ranked highest share first
10.7%#66 of 80#10 of 14
Enrollment change since 2017-18
ranked steepest decline first
-18.5%#11 of 60#4 of 11
Ranked against other public high 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 2024-25
Enrollment
944
-103 (-10%) vs 2020
+2% since 1990-91, when it was 925
Student : Teacher
11.4:1
was 11.4:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-259448311.4:111% (101)
2023-249728910.9:112% (116)
2022-231,00390.511.1:18% (77)
2020-211,0479211.4:15% (52)
2017-181,15897.611.9:110% (114)
2015-161,2299612.8:112% (149)
2010-111,43010713.4:112% (171)
2000-011,1648314.0:14% (44)
1990-919256514.2:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Timberlane Regional High School.

Since 2017-18: students down 18% (1,158 to 944); teachers down 15% (97.6 to 83).

About Timberlane Regional High School

Timberlane Regional High School is a high-enrollment high school in Plaistow, New Hampshire. The school covers grades 9 through 12 and reported 944 students in 2024-25. Across high schools in New Hampshire, the average enrollment is about 496.

Enrollment across the 7 schools in Timberlane Regional School District totals 3,224 students.

A large majority of enrollment at Timberlane Regional High School is White, at 88%. The school is also 5% Hispanic and 4% multiracial. Among Rockingham County residents, the White share is about 91%. The diversity index for Timberlane Regional High School is 21%. For US public schools as a whole it is 70%.

Timberlane Regional High School has 83 full-time-equivalent teachers, for a student-to-teacher ratio of about 11.4:1. The average for high schools in New Hampshire is about 11.2:1. Eligibility for free or reduced-price lunch, often used to gauge student poverty, is 11%. That is in line with the 13% average for public schools in Rockingham County.

Among New Hampshire public high schools, Timberlane Regional High School outscored 18%, which works out to a C- on the allk12 Grade.

BeatsExpectations compares each school's average proficiency rate across its state test results with a prediction based on free or reduced-price lunch eligibility. Timberlane Regional High School posts 37.7% against a 56.7% prediction, a bottom-10% result in New Hampshire.

For Rockingham County, Census Bureau data show the median household earns about $118,331 a year, 46% of adults hold a bachelor's degree or higher, and about 3% of people live in poverty. Counting Timberlane Regional High School, Rockingham County has 99 public schools.

Measured in a straight line, Timberlane Regional Middle School is about 0.1 miles from Timberlane Regional High School. The five-mile area around Timberlane Regional High School holds at least 8 other public schools. Among 4 nearby schools that report test results, Timberlane Regional High School ranks 4th on proficiency.

The school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more, according to its NCES locale (Suburb: Large).

The school shrank from 1,047 students in 2020-21 to 944 in 2024-25.

Timberlane Regional High School has a community page on allk12 for topics such as athletics, class schedules, and weather closures. Teachers and staff are welcome to share updates too.

Rockingham County at a glance

View full county profile
Population
319,082
Census ACS
Median income
$118,331
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
99
41,753 students

Quick facts

School name
Timberlane Regional High School
District
Timberlane Regional School District
Address
36 Greenough Rd., Plaistow, NH 03865
Phone
(603) 382-6541
County
Rockingham County
Level
High
Grade range
09–12
Total enrollment
944
Teachers (FTE)
83
Student–teacher ratio
11.4:1
Free and reduced lunch
101 (11%)
Locale
21-Suburb: Large
NCES ID
330672000439
Charter school
No
Virtual school
No

Related schools

Other schools in Timberlane Regional School District
Other schools in Plaistow
Nearby schools

Frequently asked questions

About Timberlane Regional High School
How many students attend Timberlane Regional High School?
Timberlane Regional High School enrolls approximately 944 students in grades 09-12.
Is Timberlane Regional High School an elementary, middle, or high school?
Timberlane Regional High School is a high school covering grades 09-12.
How many teachers does Timberlane Regional High School have?
Timberlane Regional High School employs 83 FTE teachers, for a student-to-teacher ratio of 11.4:1.
What is the racial breakdown of students at Timberlane Regional High School?
At Timberlane Regional High School, the student body is approximately 88% White, 5% Hispanic, 1% Black, 1% Asian, 4% Two or more.
Is Timberlane Regional High School public or private?
Timberlane Regional High School is a public K-12 school, overseen by Timberlane Regional School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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