Actually it depends on what your address is in Cielo, most of the homes are in the RSF Roger Rowe School District, but some of the homes and lots, closer to Lake Hodges are in the Escondido school. Make sure you ask and you can even call the school with your address and they will confirm if your in the right district.
We have lots of listings in Cielo, so If you are looking in that community and would like some info or help, I'd be more than happy to answer any questions about it and show you active homes in the RSF school district.
There is a part of Cielo that is Escondido School district and the rest is Rancho/Solana.
Have your agent check the school district in the MLS on the properties that you are intrested in and weed out the ones that fall in the Escondido school district. Hope this helps.