New Jersey is not indexed yet. You can browse the images for free at FamilySearch. I saw what I wanted to see from New Jersey (thank you J.D.I.) and will view the rest when the index is available.
The index as well as the images will be free to all through FamilySearch. The index is free at Ancestry, but the images are not free. Quivering leaves on my family tree indicated that New York's index is available, so I looked for some people.
1940 United States Federal Census
Lewisboro, Westchester County, New York
Ancestry has quite a few bells and whistles. The person of interest is highlighted in yellow and the rest of the household is green. You should always review the neighbors, and Ancestry makes this easy.
|Ancestry provides a typed name as you scroll through neighbors,|
and highlights the neighbor's line in peach.
|As you stroll along the page, the names are still viewable in a typed format.|
The highlights continue.
The names of columns are visible at the top.
This ensures that you gather information from the correct line.