I do not know if it helps a lot, but maybe you can find the information on the USGS website.

Best regards.

https://www.usgs.gov/science/science-explorer?lq=watersheds&objectType=&dataSource=&lastModified=

Please surf the following USGS website you can get the documents of your Interest.

http://water.usgs.gov/maps.html

Regards..

We have an example from SC USA report 2005 identifying and numbering hyddrologic units in Researchgate.  I have a map plate that goes with it, not sure I uploaded with report.  Periodically, information is updated, such as new info from LIDAR analysis in low gradient coastal area (2015 report on confined area).  If you dont find what you want through the responses, if you could be more specific, that may help.

https://cfpub.epa.gov/surf/locate/index.cfm

This is the website link where you can find watershed with site number and location map and many other details. Just you have to enter pincode of that area or you can also address. Hope it will work for you

other information related to watershed , you can get it from here also

https://watersgeo.epa.gov/mwm/

You might try the USGS Hydrologic unit code website

http://water.usgs.gov/GIS/huc.html 

The USGS National Water Information System (NWIS) gives you a description of the watersheds at their gauging stations. See these examples:

http://waterdata.usgs.gov/nwis/inventory/?site_no=04193500&agency_cd=USGS

http://waterdata.usgs.gov/nwis/dv/?site_no=04193500&agency_cd=USGS&referred_module=sw