The National Archives and Records Administration (NARA) has created a website called "How to Research the 1930 Census Microfilm." On this site, you can find enumeration districts and search which locations are on which rolls of the 1930 census microfilm. The link to this helpful website is provided below: http://1930census.archives.gov/beginSearch.asp Using our above example, simply select "New Jersey" for state in the top left search box on the NARA website. This will take you to a new screen where you can search by county name, by city name, by geographic places, by institution, or by enumeration district.