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There were 5,385 students enrolled in Sanilac County schools in the 2024-25 school year, 2.6% less than the previous year, according to the Michigan Department of Education.

Boys made up 51.5% of the county student body, while the other 48.5% were girls.

Data also showed that white students made up 90.4% of the student body, the highest percentage in Sanilac County schools, followed by 5.5% Hispanic, 3% multiracial, 0.5% Asian, 0.4% African American and 0.1% American Indian students.

Croswell-Lexington High School had the highest enrollment among Sanilac County's 20 schools in the 2024-25 school year, welcoming 523 students.

In the 2024-25 school year, 1,427,386 students enrolled in Michigan schools, a figure 4.8% below the pre-pandemic total of 1,499,552 in 2019-20, with white students seeing the largest decline of approximately 3%.

Academic performance in Michigan remains below pre-pandemic levels. According to the 2024 NAEP results, the share of students reaching the basic benchmark in core subjects is about 10 percentage points lower than in 2019—except for fourth-grade math, which saw a decline of just 2 points.

Achievement gaps between ethnic groups also persist. On average, Hispanic students scored 15 points below white students. The gap was even wider for Black students, who scored about 30 points lower than their white peers.

The 2025 education budget, approved by Gov. Whitmer last July, totals $23.4 billion—$900 million less than the previous year’s budget. K-12 schools are working with $20.6 billion, a reduction from the $21.5 billion allocated in 2024.

Some school superintendents and educators were concerned about the new budget. "Schools cannot function properly without adequate funding for safety and mental health," stated Rep. David Martin, R-Davison, referring to a significant cut of around $301 million from school safety and mental health programs. Based on the current bill, the program will receive just $26.5 million.

School name	Total enrollment in 2023-24	Total enrollment in 2024-25	% change
Croswell-Lexington High School	554	523	-5.6%
Croswell-Lexington Middle School	524	508	-3.1%
Sandusky Elementary School	504	471	-6.5%
Sandusky Junior-Senior High School	463	460	-0.6%
Marlette Junior/Senior High School	369	371	0.5%
Brown City Elementary School	367	362	-1.4%
Brown City High School	337	334	-0.9%
Marlette Elementary School	343	328	-4.4%
Frostick School	331	324	-2.1%
Deckerville Elementary School	285	288	1.1%
Meyer Elementary School	289	275	-4.8%
Deckerville Community High School	241	219	-9.1%
Peck Junior-Senior High School	206	202	-1.9%
Carsonville-Port Sanilac High School	171	187	9.4%
Peck Community Elementary School	186	174	-6.5%
Carsonville-Port Sanilac Elementary School	183	165	-9.8%
Pioneer High School	68	78	14.7%
Sanilac ISD Special Education Services	56	63	12.5%
Carsonville-Port Sanilac Learning Center	54	53	-1.9%