The Whittaker Appraisal Group covers the following New York Counties:
- Albany County
- Columbia County
- Delaware County
- Essex County (No Longer Covered)
- Fulton County
- Greene County
- Hamilton County
- Herkimer County
- Montgomery County
- Otsego County
- Rensselaer County
- Saratoga County
- Schoharie County
- Schenectady County
- Warren County
- Washington County