All three comprehensive high schools in the Folsom Cordova Unified School District saw gains last year in the number of students earning a diploma – and even fewer students dropping out.

As the economy has improved, and the state has made more funding available to public schools, Folsom Cordova has invested in a variety of additional academic and emotional supports for at-risk students – including intervention teachers, mental health counselors, and new tools for teachers to better support student growth throughout the school year.

Among Folsom Cordova students who started high school in 2011-12, 92.7 percent graduated with their class in 2015, an increase of 0.9 percentage points from the year before, according to data released by the California Department of Education this week. Since 2010, the District’s graduation rate has risen 2.4 percentage points.

Additionally, fewer students are dropping out of school. The dropout rate declined 1.1 percentage points, or 16 fewer students – from 4.3 percent in 2014 to 3.2 percent in 2015. The District’s dropout rate has dropped 1.7 percentage points since 2010.

The dropout rate does not have a precise correlation with the graduation rate because some students are still pursuing a high school degree or its equivalent after four years.

English learners and socioeconomically disadvantaged students saw even bigger gains in the past year. The graduation rate for English learners rose 4.1 percentage points – to 82.2 percent –in 2015, while the dropout rate for this group fell 3.5 percentage points. The graduation rate for socioeconomically disadvantaged students rose 2.9 percentage points, and the dropout rate fell 1.7 points.

Here are additional highlights from the District’s three comprehensive high schools:

Cordova High School, with 344 graduates in 2015, continued to see big improvements in its graduation and dropout rates in the last year. Its graduation rate rose to 95.3 in 2015 – 3 percentage points over the previous year and 5 percentage points since 2010. The dropout rate, in the meantime, fell 1.8 percentage points in 2015, to 3.0 percent – or 11 students – 8 fewer students than the previous year.

English learners at Cordova High saw enormous gains in the graduation rate, with 88.3 percent of students earning diplomas – improving 10.7 percentage points over the previous year. The rate of English learner students dropping out also fell sharply, from 13.4 percent to 8.3 percent.

Cordova High graduates from socioeconomically disadvantaged backgrounds also increased, by 4.3 percentage points to 94.8 percent in 2015. The rate of dropouts in this category of students also fell, by 2.9 percentage points.

The graduation rate at Folsom High, which had 466 graduates in 2015, has continued to grow in recent years, to 98.3 percent. That’s 0.9 percentage points since 2010. In 2015, all but one English learner (11), and all but one socioeconomically disadvantaged student (88), graduated.

Vista del Lago High School has the highest graduation rate in the District, at 98.8 percent. In other words, only four students out of the 335 seniors at Vista del Lago High School did not graduate in 2015, and the school did not report any dropouts. (The dropout rate does not have a precise correlation with the graduation rate because some students are still pursuing a high school degree or its equivalent after four years.)

While only half of English learner students at Vista graduated in 2015 (the state did not provide an exact number, to protect student privacy where there are 10 or fewer students), 100 percent of socioeconomically disadvantaged students (40) at Vista graduated that year.