Petaluma Joint Union High, CA

Original Research by School Decision on Petaluma Joint Union High

Petaluma Joint Union High School District serves kindergarten through grade twelve across a mid-sized area in Sonoma County that includes the city of Petaluma, smaller surrounding communities like Cotati and Penngrove, and neighboring portions of Novato and Sonoma. The district operates a mix of traditional schools, continuation and alternative programs, and charter schools, with the bulk of enrollment in the middle and high school years. The district's most recent assessment data shows proficiency in the low-to-mid range statewide. Across all tested grades and subjects combined, district students show an average proficiency above the midpoint among Sonoma County's districts, which signals performance that is competitive within the local region but not uniformly strong across subjects or grade levels.

In English language arts, proficiency ranges from near half at the elementary and middle levels to the mid-fifties at grades six and seven. In mathematics, the picture is noticeably weaker, particularly at grade six, where proficiency falls to the mid-thirties, and in grade eight, where it sits below forty percent. Grades three through five show somewhat stronger performance in math, clustering in the upper forties to upper fifties, with the steepest drop occurring in the transition into grade six. Science proficiency in grade five is solid at nearly sixty percent, but falls sharply in grade eight to just under a third. This pattern across subjects points to a transition-grade challenge, where students moving into middle school show notably steeper learning gaps in mathematics and science.

The district is growing and diversifying. The enrollment spans from a small population in early elementary grades to substantially larger cohorts in the middle and high school. Student composition is mixed, with Hispanic students representing roughly a third of the enrollment, white students slightly more than half, and smaller populations of Asian, multiracial, and other students. The data provided did not include free-or-reduced-price lunch counts or detailed English learner enrollment, nor did it specify the special education headcount; a parent seeking a fuller picture of socioeconomic and language-support landscapes may want to request that detail from the district directly.

The housing market in the district's service area is expensive. Home values center in the high six figures to just over one million dollars, with particular concentration in Petaluma proper. Rent is correspondingly elevated. Monthly mortgage costs on a median home, using standard lending assumptions, would exceed five thousand dollars, while monthly rent for a typical rental ranges from around twenty-seven hundred to forty-five hundred dollars depending on location. Rent occupies roughly forty percent of median household income, signaling that the area is a cost-of-living stretch for working families.

Fiscal conditions in the district have come under stress. The district has faced two consecutive defeats of parcel tax measures aimed at sustaining middle and high school operations, with the most recent loss occurring in November of the prior year. Publicly reported warnings from district officials indicate that without dedicated funding, the district faces budget pressure affecting programs and teacher compensation. However, in November of the prior year, voters approved a general obligation bond to address long-deferred facilities needs including classroom modernization, science lab upgrades, career and job-training facility improvements, and safety and infrastructure repair. This bond carries a property-tax cost and represents a major capital commitment; families considering the district should understand that property taxes will rise on this account until the bonds are retired.

Chronic absenteeism in the district sits in the top quartile among county districts, meaning the district's absence rate is relatively low and attendance engagement is stronger than the county median. The district operates continuation schools for students needing alternative settings and an alternative program at Valley Oaks High, alongside traditional comprehensive high schools including Casa Grande, Petaluma High, and charter options such as Petaluma Accelerated Charter and Mary Collins Charter at Cherry Valley. The range of program types reflects an attempt to serve diverse student populations and paths, though the data provided did not detail the specific career pathways, dual-credit options, or Advanced Placement breadth at the comprehensive schools.

A parent or resident considering enrollment should weigh the district's solid position within the county against the noted mathematics and science proficiency challenges in middle school, the substantial cost of living in the area, the unresolved operating budget constraints even with bond approval, and the diversity of program options available across the system.

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District Context

Officially reported figures, 2024-25.

Enrollment

4,931

Grades

KG–12

Schools

Student body

Hispanic 37%

Black 1%

White 52%

Asian 3%

Two+ 6%

Am. Indian / AK Native 1%

Hawaiian / Pac. Isl. 0%

By economic status

Percent proficient by grade, as reported

Economically disadvantaged

Not disadvantaged

ELA

Gr ALL

41%

—

Gr 3

50%

55%

Gr 4

38%

55%

Gr 5

73%

62%

Gr 6

57%

62%

Gr 7

36%

71%

Gr 8

35%

68%

Gr 11

50%

—

Math

Gr ALL

26%

—

Gr 3

45%

48%

Gr 4

38%

65%

Gr 5

33%

59%

Gr 6

43%

31%

Gr 7

29%

57%

Gr 8

23%

51%

Gr 11

23%

—

Science

Gr ALL

23%

—

Gr 5

47%

62%

Gr 8

15%

46%

Gr 11

29%

—

Gr 12

—

Gr HS

23%

—

Gr UG_SEC

28%

—

Schools in this District

10 schools are officially reported under this district.

Carpe Diem High (Continuation)

Sonoma Mountain High (Continuation)

Casa Grande High

Mary Collins Charter School at Cherry Valley

Kenilworth Junior High

Petaluma High

Petaluma Junior High

San Antonio High (Continuation)

Valley Oaks High (Alternative)

Petaluma Accelerated Charter

Academic Performance

Percent of students meeting or exceeding state standards, by grade.

Mathematics

6 grades reported

47%

Grade 3

59%

Grade 4

53%

Grade 5

35%

Grade 6

45%

Grade 7

38%

Grade 8

English Language Arts

6 grades reported

54%

Grade 3

51%

Grade 4

65%

Grade 5

60%

Grade 6

56%

Grade 7

53%

Grade 8

Science

2 grades reported

59%

Grade 5

32%

Grade 8

Social Studies

1 grade reported

60%

Grade 8

Housing & Real Estate

Data as of April 2026 | District-weighted from constituent ZIP codes

Home Values

Typical home value$1.02M

Year-over-year change-1.3%

Range across 10 ZIP codes$725K to $2.1M

vs. state typical1.31x

vs. national typical2.77x

Home value trend (12 months)

ZIP code home values (10 ZIP codes)

ZIP	City	Value	YoY	Weight
94952	Petaluma	$1.1M	-0.1%	54.0%
94954	Petaluma	$838K	-2.8%	25.0%
95476	Sonoma	$966K	-4.6%	9.4%
94951	Penngrove	$1.3M	+0.2%	5.1%
94947	Novato	$1.0M	-1.0%	3.7%
94946	Nicasio	$2.1M	-1.5%	1.0%
94931	Cotati	$725K	-2.3%	0.7%
95404	Santa Rosa	$822K	-1.7%	0.7%
94945	Novato	$1.1M	-1.2%	0.3%
95472	Sebastopol	$1.1M	-1.4%	0.1%

Rental Market

Typical monthly rent$2,876/mo

Year-over-year change+1.9%

Range across 7 ZIP codes$2,494 to $4,487/mo

Rent trend (12 months)

ZIP code rents (7 ZIP codes)

ZIP	City	Rent/mo	YoY	Weight
94952	Petaluma	$2,885	+1.8%	54.0%
94954	Petaluma	$2,744	+1.0%	25.0%
95476	Sonoma	$2,911	+3.2%	9.4%
94947	Novato	$3,495	+5.3%	3.7%
95404	Santa Rosa	$2,494	+0.1%	0.7%
94945	Novato	$4,487	—	0.3%
95472	Sebastopol	$2,793	+3.9%	0.1%

Affordability

Est. monthly mortgage (20% down at 6.48%)$5,147/mo

Home price / national median income12.2x

Annual rent / national median income41.2%

Est. mortgage exceeds rent by$2,271/mo

Comparison

State typical home value$776,233 (-1.1% YoY)

National typical home value$368,198 (+0.6% YoY)

State ZHVI trend (12 months)

National ZHVI trend (12 months)

Economic Context

30-year fixed mortgage rate6.48%

National unemployment rate4.3%

National median household income$83,730

CPI: Rent of shelter (index)447.05

30-year fixed mortgage rate (12 months)

National unemployment rate (12 months)

National median household income (12 months)

CPI: Rent of shelter (index) (12 months)

Sources: Zillow Home Value Index and Zillow Observed Rent Index (Zillow Group), Realtor.com via Federal Reserve Bank of St. Louis (FRED)

Data Currently Unavailable

Civil Rights Data (CRDC)

This profile is derived exclusively from publicly available federal and state datasets. It may not reflect the most current information available. We encourage parents and families to supplement this data with information published directly on the school’s website, which may include more recent figures, additional programs, or updated enrollment data.