The findings reported in this paper are based on surveys of U.S. high school students who registered and managed their science and engineering fair (SEF) projects through the online Scienteer website over the three years 2019/20, 2020/21, and 2021/22. Almost 2500 students completed surveys after finishing all their SEF competitions. Our findings confirmed and extended previous observations regarding differences in students' SEF experiences based on gender and ethnicity. In this paper we report results on high school location. Most students participating in SEFs indicated that they were from suburban schools with some variation depending upon student ethnicity -- Asian-81%, Black-68%, Hispanic-55%, and White-78%. Very few SEF participants -- 3.5% overall -- indicated that they were from rural schools, even though more than 20% of high school students attend rural schools. Urban vs. suburban school location appeared to have little impact on any of the students' SEF experiences. For instance, although Asian and Hispanic students indicated more successful SEF outcomes than Black and White students, Asian students were the most likely to attend suburban schools, whereas Hispanic students were relatively balanced in their attendance at suburban and urban schools. In those instances where we observed statistically significant (p<.05) differences in students' experiences based on school location, students from suburban schools were slightly favored in relationship to students from urban schools but the differences always were small. In conclusion, although most students participating in SEFs come from suburban schools, students participating in SEFs and coming from urban schools can have equivalent SEF experiences, and very few students participating in SEFs come from rural schools.