title: How to use http://www.census.gov API to pull data
body: <p>Am trying to query data from <a href="http://www.census.gov" rel="nofollow">http://www.census.gov</a>, using their API
  I want to get the population of a particular city in the US, by using the city name and the US state code.</p>
  
  <p>Given that I already have the key, what other parameters do I add in the URL below, so that I can get the population.</p>
  
  <pre><code>http://api.census.gov/data/2010/sf1?key=&lt;my key&gt;
  </code></pre>
  
  <p>any assistance will be greatly appreciated</p>