For a complete list of all the US Post Offices
(every town and village included), click here.

The amount of letters and parcels delivered,
by state, July 1st 1893 - June 30th 1894.
Source is the 3rd Assistant Postmasters
annual report to Congress in 1894.

For those with covers to domestic and foriegn destinations
you may be interested in the time it took
to deliver mail from New York, by far
the largest Post Office at the time, and
major destinations. The source
is the World Almanac printed in 1895.

The quantity of foriegn mail recieved by country

The quantity of foriegn mail destination by country