I would recommend that you contact the local police department. You could also check out city-data.com. You can statistics about residents (income, race, education, employment...), crime data and so much more.
If you need information about schools, check out greatschools.net.
Trulia has a Crime Maps feature which can help you determine the crime levels of neighborhoods.
To find the Crime Maps feature in the Shelton area, follow this link:
If I can help with anything else, just let me know!
Community Manager, Trulia Voices
Shelton, overall, is a great community to live in. However, I would recommend that you contact the Shelton Police Department and ask them about the specifics of certain areas. They would be your best bet.
Hope this helps!