Mariposa County California Schools Calendar

About 1,800 students attend public school across the Sierra Nevada foothills, the mountain communities along Highway 49, and Yosemite Valley itself, and nearly all of them follow a single academic calendar. Mariposa County Unified reported an enrollment of 1,831 for 2025-26. That one calendar has to work for a county seat with a traditional main street, small ranching and mountain communities, and a school inside a national park, which makes planning here different from planning in a large suburban district.

School District Structure in Mariposa County

California uses the word “county” for this level of government, and Mariposa County is one of the state’s smallest and most rural. Public education is organized differently than in states like Texas, where one county can hold dozens of districts. Mariposa County is served by one unified K-12 district, the Mariposa County Unified School District, which is governed by an elected Board of Trustees. The district office is at 5082 Old Highway North in Mariposa, and the main phone line is (209) 742-0250. State records have listed Jeff Aranguena as superintendent, but leadership changes, so confirm the current superintendent on the district website.

The district’s campuses are spread across the county. They include Mariposa Elementary, Woodland Elementary, Greeley Hill Elementary and Coulterville High, El Portal Elementary and High, Lake Don Pedro Elementary, and Yosemite Valley Elementary, along with Mariposa County High School in the town of Mariposa. Spring Hill High, a continuation school, and Sierra Home, an independent study program, are also part of the district. The Mariposa County Office of Education works alongside the district on county-level services and shares planning documents with it, but the Board of Trustees adopts the school calendar.

The Board of Trustees typically meets on a regular schedule, usually monthly, with agendas posted ahead of time. Families who want to speak when the calendar is under discussion should check the posted agenda for the specific meeting date.

Academic Calendar Structure

Mariposa County Unified uses a traditional two-semester calendar with a fall semester and a spring semester. Elementary report cards may be organized by trimester or quarter, while the high school reports grades by semester. The district’s own grading information lists the exact periods at each school.

The school year usually begins in mid-August and ends around the end of May or early June, though the exact first and last days change each year. The board generally adopts the next year’s calendar in the spring, and families can usually see it before summer begins. The fall semester typically ends before or around winter break, and the spring semester begins in early to mid-January.

School-day start and end times differ by campus. Elementary schools in the foothill communities, the middle grades at the K-8 sites, and Mariposa County High School do not all run the same bell schedule. The district posts each school’s hours on its site pages. Families in outlying communities should also check transportation schedules, since long bus routes through mountain terrain affect pickup and drop-off times.

School Holidays and Breaks

Families can expect the usual holidays for a California school calendar, with the exact dates adopted each year:

• Labor Day in early September
• Veterans Day on November 11, which California schools observe
• A Thanksgiving break covering the holiday and typically the days around it
• Winter break of about two weeks, spanning Christmas and New Year’s Day
• Martin Luther King Jr. Day in January
• Presidents’ Day in February
• A spring break, usually in late March or April
• Memorial Day in late May

California has no statewide fall break, so Mariposa County’s fall semester generally runs from August through Thanksgiving without a long recess. Because holiday dates move from year to year, always check the adopted calendar on the district website rather than relying on last year’s dates.

Linking Your Calendar Searches Across Counties

Families sometimes compare calendars across counties when they are relocating, sharing custody across county lines, or planning around relatives’ schedules. Anyone weighing a move between the Sierra foothills and the Bay Area, for example, can look at the Marin county schools calendar alongside theMariposa county schools calendar to see how start dates, breaks, and end-of-year timing line up. Mariposa and Marin differ greatly in size and structure, and their calendars can look quite different from one another.

How to Find the Official Mariposa County School Calendar

The official calendar is published by Mariposa County Unified School District at mcusd.org, and the district has also used mariposa.k12.ca.us. The board typically adopts the following year’s calendar at a spring meeting, and the document is then posted on the website. Look under sections labeled “District,” “Parents,” or “Community” for a PDF version.

Individual schools may also publish their own supplemental calendars for events, sports, concerts, and activities. These can include back-to-school nights, assemblies, and parent conferences that don’t appear on the district-wide document. For the most reliable information, check both the district calendar and your child’s school page.

Be careful with third-party calendar sites. Some display outdated or auto-generated dates that don’t match what the board adopted. The district’s own calendar is the authoritative source.

Early Release Days, Teacher Workdays, and Professional Development

Not every weekday on the calendar is a regular school day for students. Teachers typically return a few days before students for workdays and planning. Professional development days that fall during the school year are scheduled when students are not in attendance, and the district marks them on the calendar.

Early release or minimum days are also common, often tied to staff meetings, parent conferences, or the end of a grading period. The district typically announces them through its calendar and through messages to families. Because Mariposa County’s schools serve widely scattered communities, families should confirm early release times with their child’s school, especially if a long bus ride is involved.

California requires districts to provide staff development time as part of the calendar, though the number and placement of those days is set locally.

Emergency Closures and Weather Days

Mariposa County is a mountain and foothill region, and closure decisions reflect that. Higher-elevation communities such as Greeley Hill and Coulterville can see winter snow and ice that the town of Mariposa and Lake Don Pedro do not. Road conditions on routes like Highway 49 and Highway 140 can also affect bus travel, and wildfire and smoke events are a real consideration in the summer and fall.

Decisions about closing a school are made by district leadership based on safety and road conditions. Because conditions vary across the county, a closure may affect some campuses and not others. The district typically communicates closures through its automated notification system, its website, and social media. The Mariposa Gazette covers county news, and television stations serving the central San Joaquin Valley and surrounding areas often report weather-related closures when conditions are widespread.

California gives districts a way to handle emergency closures. Districts can request approval from the California Department of Education to count certain emergency closure days, and the board decides whether to add makeup days. Check the district website for the current policy.

Graduation and End-of-Year Schedule

Final exams at the high school typically take place in the last week or two of the spring semester, and the district posts the finals schedule in advance. Mariposa County High School’s graduation is usually held in late May or early June. Smaller campuses, including Coulterville High and El Portal, hold their own ceremonies, and elementary and middle grade promotion ceremonies are scheduled by each school. Confirm the venue and time with the school, since small campuses often hold ceremonies on site.

Report cards and grades are typically accessible through the district’s parent portal, and the district can help families set up access.

Back-to-School and Registration Information

New families should start with the district office in Mariposa or their child’s school. Enrollment and re-enrollment typically open in the spring and continue into summer. California districts generally ask for proof of the child’s age, proof of residency within the district, and immunization records. Kindergarten and transitional kindergarten eligibility depend on the child’s age as of a state cutoff date, so confirm eligibility with the district.

School supply lists are usually posted on school pages before the start of the year, and many campuses hold orientation days or meet-the-teacher events in the days before or after the first day. These events appear on school-level calendars rather than the district-wide one, so check your child’s school.

Special Programs and Their Calendar Implications

Some programs follow a calendar that differs from the main district schedule. Spring Hill High, the district’s continuation school, may have its own scheduling for credit recovery and attendance. Sierra Home, the independent study program, allows more flexible scheduling but still operates within the school year and has its own check-in and work-submission dates.

High school students who take college courses through a dual enrollment arrangement may follow a college calendar for those classes, which can start and end on different dates than the high school. Preschool and early childhood programs that operate through the district or county may also use their own calendars. Ask the school or program directly for its schedule.

Athletics and Extracurricular Calendar Context

High school athletics are governed by the California Interscholastic Federation (CIF), and Mariposa County High School competes in the CIF Sac-Joaquin Section. Athletic schedules are separate from the academic calendar but linked to it. Fall sports practice often begins before the first day of school, and some competitions fall during breaks or near exam periods. Check the school’s athletic department for current schedules.

State-Level Calendar Requirements and How California Law Governs Mariposa County

California sets the framework for the school year. The California Department of Education oversees the requirements, which include a minimum number of instructional days and minimum instructional minutes by grade level. Districts that fall short can face reductions in state funding, so the Board of Trustees designs the calendar to meet those requirements. Within that framework, the board decides when school starts, how breaks are placed, and where staff development days fall. Families can find the state’s requirements on the California Department of Education website.

Frequently Asked Questions

When does school start in Mariposa County, California?
The school year typically begins in mid-August. The exact date is set each year by the Board of Trustees and posted on the district website.

When does school get out for summer in Mariposa County?
The last day is usually around the end of May or early June. Check the adopted calendar for the exact date.

How many days are in a school year in Mariposa County?
California requires a minimum number of instructional days and minutes, and the district’s calendar is built to meet them. The official calendar lists the exact count.

How do I find out if school is cancelled today in Mariposa County?
Check the district’s website and social media, and watch for the district’s automated notifications. Local and regional news outlets also report widespread closures.

What is the spring break schedule for Mariposa County schools?
Spring break typically falls in late March or April. The adopted calendar lists the exact dates.

How do I enroll my child in Mariposa County schools?
Contact the district office or your child’s school and be ready to provide proof of age, residency, and immunization records. Call (209) 742-0250 to start.

Are there any year-round schools in Mariposa County?
Mariposa County Unified generally follows a traditional calendar. Ask the district whether any program, such as independent study, offers a different schedule.

Who do I contact about school calendar questions in Mariposa County?
Start with the Mariposa County Unified School District office at (209) 742-0250 or the school your child attends.