The U.S. Census Bureau is a great resource for statistics. This link breaks down census data by state.
Because anyone can publish anything on the internet, it's important for you to verify that the author of a webpage is well informed on the topics he or she covers.
Which of the following statements is true about the website you are evaluating?
The author(s) and/or publisher is not named.
The author(s) are named, but credentials cannot be verified or credentials are unrelated to the topic.
The author(s) are named and relevant credentials are verifiable, or the publisher is a credible source on this topic.
Author's name and credentials are provided, can be verified, and demonstrate probable expertise on the topic; and the publisher is reputable.
Would you use either of these websites as references in scholarly papers?