Visit the Utility Department website for more information. You'll find that you can apply for the water and wastewater services through the mail. Please contact these firms to set up these utilities. You may come from a part of the country where the city government administers the school district. This is not the case in Texas.
School districts are independent tax entities with their own taxing authority and governing board.
Questions about the school system should be made to that body. Depending on the subdivision in which you live, there may be a neighborhood association which can be either an informal group of individuals who get together to socialize or are formed for more formal purposes as defined by deed restrictions or to maintain agreements between the home owners and developers. You can visit this link to find the neighborhood associations which have a web presence. If a neighborhood association is not listed for your subdivision, there may not be one, or it does not have a web site. Please ask your realtor for more information.