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SCHOOL COMMUNITY·MILLER CREEK ELEMENTARY·NCES 061122001244

Lucas Valley Elementary

1175 Idylberry Dr., San Rafael, CA 94903 · (415) 492-3730 · Marin County
GRADES KG–05ELEMENTARY21-SUBURBREGULAR SCHOOL315 STUDENTS
Enrollment
315
Elementary
DISTRICT 378 · STATE 465
Student : Teacher
25.2:1
13 FTE teachers
DISTRICT 25.0:1 · STATE 22.3:1
Free / Reduced Lunch
10%
30 students
DISTRICT 19% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Kindergarten
48
Grade 1
46
Grade 2
52
Grade 3
54
Grade 4
66
Grade 5
49
Student demographics
White
22571%
DISTRICT 54% · STATE 20%
Hispanic
299%
DISTRICT 27% · STATE 56%
Black
41%
DISTRICT 1% · STATE 5%
Asian
289%
DISTRICT 6% · STATE 12%
Two+
299%
DISTRICT 11% · STATE 6%
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
17455%
Female
14145%

Discussions

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
67.9%
CA avg 47.1% . -10.1pp since 2014
Math
72.0%
CA avg 35.6% . -4.0pp since 2014
Source: CAASPP. 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
70.1%
composite math + reading, all grades
Predicted
73.8%
based on CA schools with similar FRL share
Beats by
-3.7pp
below demographic expectation
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
315
-91 (-22%) vs 2017
Student : Teacher
25.2:1
was 23.7:1
% White
71%
was 70%
% Hispanic
9%
was 9%
% Black
1%
was 1%
% Asian
9%
was 16%
Source: NCES Common Core of Data

About Lucas Valley Elementary

Lucas Valley Elementary, a cozy K-5 school in San Rafael, California, overseen by Miller Creek Elementary, hosts 315 students, covering grades K through 5. Compared to the state average of about 465 students per school, that is 32% smaller than typical.

Lucas Valley Elementary is one of 4 schools operated by Miller Creek Elementary, a district that teaches 1,755 students overall.

In terms of who attends, Lucas Valley Elementary shows that the largest single group is White, at 71% of enrollment. Other groups include 9% Hispanic, 9% multiracial, 9% Asian. Compared to Marin County overall, the school's racial mix sits in roughly the same range.

Looking at the economic backdrop, Staff filings list 13 full-time-equivalent teachers, which works out to roughly 25.2:1 students per teacher. The state averages around 22.3:1, so this campus is higher than the state norm typical. About 10% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. By comparison, Marin County runs at roughly 35%, so the school's eligibility rate is somewhat below the surrounding baseline.

On a residual basis (actual vs predicted given the student mix), Lucas Valley Elementary tracks the demographic baseline. The model predicts 73.8% given the school's FRL share; actual proficiency is 70.1%.

Zooming out to the county, census data for Marin County shows the typical household earns roughly $149,091 per year, roughly 61% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Across Marin County's 75 public schools (combined enrollment of about 29,867 students), Lucas Valley Elementary is one campus in the mix.

Marin County Juvenile Court is the nearest neighboring public school, about 0.4 miles from this campus. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Lucas Valley Elementary at 2nd of 5; the average score across the group is 64.2%.

The campus sits in a residential setting.

Looking at the recent track record. Over the past 7-year window, the student count declined 22%: 406 students in 2018 compared to 315 in 2025. Over the same period, the Asian share contracted from 16% to 9%. The student-to-teacher ratio grew from 23.7:1 in 2018 to 25.2:1 today.

In the discussion threads here, recent activity here tends to focus on school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.

Marin County at a glance

View full county profile
Population
257,969
Census ACS
Median income
$149,091
Household, ACS
Bachelor's+
61%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
75
29,867 students

Quick facts

School name
Lucas Valley Elementary
District
Miller Creek Elementary
Address
1175 Idylberry Dr., San Rafael, CA 94903
Phone
(415) 492-3730
County
Marin County
Level
Elementary
Grade range
KG–05
Total enrollment
315
Teachers (FTE)
13
Student–teacher ratio
25.2:1
Free/Reduced lunch
30 (10%)
Locale
21-Suburb: Large
NCES ID
061122001244
Charter school
No
Virtual school
No

Related schools

Other schools in Miller Creek Elementary
Other schools in San Rafael
Nearby schools

Frequently asked questions

About Lucas Valley Elementary
How many students attend Lucas Valley Elementary?
Lucas Valley Elementary enrolls approximately 315 students in grades KG-05.
What age range does Lucas Valley Elementary serve?
Lucas Valley Elementary serves students from grade KG through grade 05.
How many teachers does Lucas Valley Elementary have?
Lucas Valley Elementary employs 13 FTE teachers, for a student-to-teacher ratio of 25.2:1.
What is the student diversity at Lucas Valley Elementary?
Student demographics at Lucas Valley Elementary are roughly 71% White, 9% Hispanic, 1% Black, 9% Asian, 9% Two or more.
Is Lucas Valley Elementary public or private?
Lucas Valley Elementary is a public K-12 school, overseen by Miller Creek Elementary.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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