Look up your address in the Osceola County Property Appraiser web page. If your Tax District is anything other than "100 - ST CLOUD" then you will have to call the county for service. 407- 742-7750 https://ira.property-appraiser.org/PropertySearch/
If you are in Tax Code 100 you must call Toho Water Authority formally St. Cloud Utilities and establish service at 407-957-7344 option #4