Martinez has a character all its own in Contra Costa County. It’s the county seat, it sits right on the waterfront, and it runs its own school district rather than feeding into the much larger Mt. Diablo Unified. For families weighing where to buy, that independence matters. A smaller district often means tighter community connections, more responsive leadership, and a different feel from suburban mega-districts.
Here’s what you should know about the Martinez school landscape before you start your search.
Martinez Unified: A Smaller District with Real Strengths
Martinez Unified School District serves roughly 3,800 students across about 10 schools. Compare that to neighboring Mt. Diablo Unified, which covers 29,000+ students across 150 square miles, and you get a sense of the scale difference. Martinez Unified is a district where administrators and parents tend to know each other by name.
The district spends about $14,700 per student, above the California median. That investment shows up in some strong outcomes, particularly at the elementary and high school levels. Niche rates the district B+ overall, with 40% math proficiency and 53% reading proficiency district-wide. Both figures exceed the state averages of 35% and 47%.
Elementary Schools: A Real Bright Spot
Martinez Unified has several elementary schools, and the district’s overall elementary performance is one of its clearest strengths. Which school your child attends depends on your address, so confirming your assignment early in the home search is important.
Morello Park Elementary
Morello Park Elementary is the standout, ranking among the best elementary schools in all of Contra Costa County.
| Metric | Morello Park Elementary |
|---|---|
| GreatSchools Rating | 7/10 |
| Niche Grade | A |
| Reading Proficiency | ~81% (vs. 47% state avg) |
| Math Proficiency | ~67-74% (vs. 35% state avg) |
| CA Ranking | Top 5% statewide (#394 U.S. News) |
| Enrollment | ~500 students |
| Student-Teacher Ratio | 21:1 |
To put those numbers in context, the California average for reading proficiency is about 47% and math is around 35%. Morello Park runs well ahead of both benchmarks. Public School Review ranks it in the top 5% of all 9,600+ California schools. SchoolDigger places it first among all four ranked elementary schools in the district, and in the top 14% statewide. Hispanic and Special Education students at Morello Park also outperform their peers at both district and state levels, an important equity indicator.
John Swett Elementary
John Swett Elementary also performs well, with a 7/10 GreatSchools rating and an A- from Niche. Reading proficiency sits at about 57% and math at roughly 54%, both solidly above state averages. SchoolDigger ranks it in the top 20% of California elementary schools and second among Martinez Unified’s elementary schools. It’s the largest elementary in the district at about 534 students and has a reputation among local families as a strong, community-oriented school.
Other Elementary Options
John Muir Elementary (B+, 6/10 GreatSchools, ~42% math and 42% reading) serves another portion of the community. Las Juntas Elementary (B, 3/10 GreatSchools, ~32% math and 37% reading) serves the Vine Hill area south of downtown. Performance varies across these schools, but all benefit from the smaller-district structure and community engagement that defines Martinez Unified.
Middle School: Strong Reading, Math Needs Attention
Martinez Junior High is the primary middle school serving the district.
| Metric | Martinez Junior High |
|---|---|
| GreatSchools Rating | 7/10 |
| Niche Grade | B+ |
| Reading Proficiency | ~48% (vs. 47% state avg) |
| Math Proficiency | ~31-35% (vs. 35% state avg) |
| SchoolDigger Ranking | #683 of 2,777 CA middle schools (top 25%) |
| Enrollment | ~803 students |
Reading proficiency is roughly in line with the state average, while math proficiency is an area where the school shows room for growth. This pattern of stronger ELA and weaker math is common across many California middle schools, not unique to Martinez. SchoolDigger gives the school 4 out of 5 stars and places it in the top 25% statewide.
Families focused on math enrichment may want to look into supplemental programs or tutoring options. The school has been working on improvement efforts in STEM areas and offers a Gifted & Talented program.
High School: Alhambra Holds Its Own
Alhambra Senior High School is Martinez’s main comprehensive high school, and it delivers solid results across the board.
| Metric | Alhambra Senior High School |
|---|---|
| GreatSchools Rating | 8/10 |
| Niche Grade | A- |
| Graduation Rate | 97% |
| Average SAT | 1,240 |
| Average ACT | 27 |
| Average GPA | 3.58 |
| Math Proficiency | ~28% (vs. 35% state avg) |
| Reading Proficiency | ~55% (vs. 47% state avg) |
| AP Participation | 37% |
| U.S. News CA Ranking | #659 (top 30%) |
| Enrollment | ~1,070 students |
A 97% graduation rate puts Alhambra on par with top-performing high schools across the county, including Northgate (97%) and Las Lomas (96%). The school is established (founded 1897), offers AP courses and a Gifted & Talented program, and SchoolDigger ranks it in the top 31% of California high schools.
Math proficiency at the 11th-grade testing level is an area where Alhambra trails the state average, consistent with the middle school pattern. Reading proficiency, however, runs well above. Overall, Alhambra won’t top every ranking list the way Northgate or Acalanes does, but it consistently performs above state averages in most categories and provides a well-rounded high school experience for a community of Martinez’s size.
The Cross-District Detail That Matters for Buyers
Here’s the wrinkle most homebuyers don’t know about: not every Martinez address feeds into Martinez Unified. Some southern portions of the city actually fall within Mt. Diablo Unified School District.
This creates two distinct scenarios depending on where you buy:
If your address is in Martinez Unified: You get the smaller district experience with community-focused schools, Morello Park or another strong elementary, Martinez Junior High, and Alhambra Senior High. The full K-12 pathway stays within the district.
If your address is in the MDUSD portion of Martinez: Your children attend Mt. Diablo Unified schools, potentially alongside students from Pleasant Hill or Concord. This isn’t necessarily worse or better, but it’s a fundamentally different experience. Some MDUSD schools near the Martinez border perform well; others are more mixed.
The important thing is knowing which district your address falls into before you make an offer. The experience differs enough that it should factor into your decision.
The Value Angle: Martinez vs. Neighboring Cities
One of the underappreciated advantages of buying in Martinez is price. Home prices here typically run lower than comparable properties in Walnut Creek and many parts of Pleasant Hill. Yet the school outcomes are closer than you might expect.
Morello Park Elementary’s ~81% reading proficiency is in the same range as top Walnut Creek elementary schools. Alhambra’s 97% graduation rate matches Northgate and Las Lomas. Families who need strong elementary performance but are working within a budget often find that Martinez delivers more per dollar than its neighbors.
And for buyers looking at southern Martinez, there’s an additional angle: you may get a Martinez mailing address (and Martinez pricing) while feeding into some of the same schools as Pleasant Hill buyers. It’s a boundary detail worth exploring.
How to Verify Your School Assignment
Since the district boundary runs through the city, confirming your assignment is essential:
For Martinez Unified: Contact the district office or call directly. The district is small enough that a phone call will typically get you a definitive answer quickly.
For Mt. Diablo Unified: Use the MDUSD School Finder to confirm which elementary, middle, and high school serve any given address.
Your real estate agent should also be familiar with where the boundary falls. Don’t assume that a Martinez address automatically means Martinez Unified schools.
Ready to buy in Martinez? Contact JVM Lending today for a free rate quote. We close loans in as few as 14 days, giving you an edge in a market where the best-located homes tend to move fast.
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