Yes, as long as a school serves students in at least one grade beyond kindergarten, it can be collected and labeled as an Elementary School. For example, a PreK-2nd grade school can be collected and labeled as an Elementary School. In your case, the PreK-1st grade school can be collected as an Elementary School.
For more guidance, check out the following resources:
[School Type Decision tree](https://prd-wret.s3-us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/thumbnails/image/DecisionTree_SchoolIcons_v04_15x17_201712Dec05.png "School Type Decision Tree") Tree")
[This section](https://navigator.er.usgs.gov/help/WebHelp/editing/how_to_edit_structure_features/how_to_edit_an_existing_feature/steps_for_editing_ex_features/step_2_check_the_att_info.htm "This section") of the User Guide for instructions on changing symbols
[School Icon Review newsletter article](http://prd-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/atoms/files/2020_11_Vol6_Iss6%20The%20National%20Map%20Corps%20Newsletter.pdf#page=2 "School Icon Review newsletter article")
