| Watertown Township | 2000 | All Other Industries | 206 |
| Watertown Township | 2000 | Public Administration | 1 |
| Watertown Township | 2001 | Administrative and Waste Services | 12 |
| Watertown Township | 2001 | All Other Industries | 146 |
| Watertown Township | 2001 | Public Administration | 1 |
| Watertown Township | 2002 | All Other Industries | 143 |
| Watertown Township | 2002 | Construction | 33 |
| Watertown Township | 2002 | Public Administration | 1 |
| Watertown Township | 2004 | Administrative and Waste Services | 14 |
| Watertown Township | 2004 | All Other Industries | 130 |
| Watertown Township | 2005 | Administrative and Waste Services | 12 |
| Watertown Township | 2005 | All Other Industries | 148 |
| Watertown Township | 2006 | All Other Industries | 98 |
| Watertown Township | 2006 | Construction | 43 |
| Watertown Township | 2006 | Manufacturing | 26 |
| Watertown Township | 2007 | All Other Industries | 102 |
| Watertown Township | 2007 | Construction | 42 |
| Watertown Township | 2007 | Manufacturing | 20 |
| Watertown Township | 2008 | All Other Industries | 187 |
| Watertown Township | 2008 | Educational Services | 260 |
| Watertown Township | 2008 | Public Administration | 1 |
| Watertown Township | 2009 | All Other Industries | 175 |
| Watertown Township | 2009 | Educational Services | 256 |
| Watertown Township | 2009 | Public Administration | 1 |
| Watertown Township | 2010 | All Other Industries | 146 |
| Watertown Township | 2010 | Educational Services | 245 |
| Watertown Township | 2010 | Public Administration | 1 |
| Watertown Township | 2011 | All Other Industries | 143 |
| Watertown Township | 2011 | Educational Services | 258 |
| Watertown Township | 2011 | Public Administration | 1 |
| Watertown Township | 2012 | All Other Industries | 160 |
| Watertown Township | 2012 | Construction | 0 |
| Watertown Township | 2012 | Educational Services | 273 |
| Watertown Township | 2012 | Public Administration | 1 |
| Watertown Township | 2013 | All Other Industries | 111 |
| Watertown Township | 2013 | Construction | 36 |
| Watertown Township | 2013 | Educational Services | 282 |
| Watertown Township | 2013 | Public Administration | 1 |
| Watertown Township | 2014 | All Other Industries | 152 |
| Watertown Township | 2014 | Construction | 0 |
| Watertown Township | 2014 | Educational Services | 271 |
| Watertown Township | 2014 | Public Administration | 1 |
| Watertown Township | 2015 | All Other Industries | 102 |
| Watertown Township | 2015 | Construction | 41 |
| Watertown Township | 2015 | Educational Services | 265 |
| Watertown Township | 2015 | Public Administration | 1 |
| Watertown Township | 2016 | All Other Industries | 125 |
| Watertown Township | 2016 | Construction | 39 |
| Watertown Township | 2016 | Educational Services | 266 |
| Watertown Township | 2016 | Public Administration | 1 |
| Watertown Township | 2017 | Administrative and Waste Services | 25 |
| Watertown Township | 2017 | All Other Industries | 105 |
| Watertown Township | 2017 | Construction | 51 |
| Watertown Township | 2017 | Educational Services | 245 |
| Watertown Township | 2017 | Public Administration | 1 |
| Watertown Township | 2018 | Administrative and Waste Services | 25 |
| Watertown Township | 2018 | All Other Industries | 102 |
| Watertown Township | 2018 | Construction | 56 |
| Watertown Township | 2018 | Educational Services | 257 |
| Watertown Township | 2018 | Public Administration | 1 |
| Watertown Township | 2019 | Administrative and Waste Services | 28 |
| Watertown Township | 2019 | All Other Industries | 122 |
| Watertown Township | 2019 | Construction | 59 |
| Watertown Township | 2019 | Educational Services | 246 |
| Watertown Township | 2019 | Public Administration | 1 |
| Watertown Township | 2020 | Administrative and Waste Services | 27 |
| Watertown Township | 2020 | All Other Industries | 122 |
| Watertown Township | 2020 | Construction | 54 |
| Watertown Township | 2020 | Educational Services | 227 |
| Watertown Township | 2020 | Professional and Technical Services | 0 |
| Watertown Township | 2020 | Public Administration | 1 |
| Watertown Township | 2021 | Administrative and Waste Services | 0 |
| Watertown Township | 2021 | All Other Industries | 129 |
| Watertown Township | 2021 | Construction | 52 |
| Watertown Township | 2021 | Educational Services | 230 |
| Watertown Township | 2021 | Professional and Technical Services | 27 |
| Watertown Township | 2021 | Public Administration | 1 |
| Watertown Township | 2022 | All Other Industries | 131 |
| Watertown Township | 2022 | Construction | 47 |
| Watertown Township | 2022 | Educational Services | 229 |
| Watertown Township | 2022 | Professional and Technical Services | 28 |
| Watertown Township | 2022 | Public Administration | 1 |