That is not how power distribution works. The subs provide HV right to the residential areas. The local branch feed transformers can all adjust for differences in the HV line to attain the proper local feed voltage, but that HV reading is seldom more than a few tens of volts out of thousands.
Now, had you said something about being far away from the final LV AC transformer that feeds a residential branch, THEN the voltage at the end of a feed can be a few volts down, and out of only 240, that makes a bigger difference.
The system is designed so that the voltage drops on long HV feeds amounts to a tiny percentage of the whole. This is why at the local level, a transformer is placed at specific intervals and sized to cover the number of connections within those intervals.
The only place one would typically find a lower voltage at the outlet would be a couple thousand feet down an unfinished driveway, where the property owner did not want to pay for his own transformer.