The 1950 census will not have a name index, so you will need to search by location. As in the previous post about this census, there are many sources to find out addresses and locations of your ancestors. The Census will be organized by enumeration district, so once you have an address you will have to convert it to an enumeration district. What is an enumeration district? It is an area canvassed by a single census taker (enumerator).
Each ED (enumeration district) within a state has a unique #. In the 1930 census, the number was two parts, such as 31-118. The first part is a prefix number assigned to each county (usually alphabetical). And the second part is district number in the county.
In 1940 census, large cities were given their own number and are usually listed after the last county prefix and cities in alphabetical order. There are many ED finders listed online which will be very helpful in converting the address into an enumeration district. So in the 1950 census it will be very important to finding the correct ED for the address you have. Again use the ED finders online to help with this process. One example is Steve Morse at https://stevemorse.org/census/unified.html
FamilyFinders