Lathrop, California. Lathrop is a city located in San Joaquin County, California, United States. At the 2010 census Lathropâs population was 18,023. The city is located in Northern California at the intersection of Interstate 5 and SR 120. Contents.
The lowest composite ACT score possible is 1, while the highest ACT score possible is 36. Other factors will help you determine what a good ACT composite score is for you, and weâll look at those in a minute.
What does my ACT score mean? The highest achievable score on the ACT is 36. A students score is determined by awarding points for all questions answered correctly. No points are deducted for wrong answers. Each section of the ACT is graded separately, and these scores are averaged to create a composite score for the entire exam.