On July 5, 1790, the Irish mail coach service makes its first run from Dublin to Waterford, marking a significant milestone in Ireland’s postal history. This is part of the broader expansion of the General Post Office’s (GPO) mail coach network, which had been introduced in Ireland in 1789.

A twice-weekly mail coach service operates between Dublin and Drogheda to the north, Kilkenny to the south and Athlone to the west as early as 1737 and for a short period from 1740, a Dublin to Belfast mail coach exists. In winter, this route takes three days, with overnight stops at Drogheda and Newry. In summer, travel time is reduced to two days. In 1789, mail coaches begin a scheduled service from Dublin to Belfast. They meet the mail boats coming from Portpatrick in Scotland at Donaghadee, County Down.

The Irish mail coach system is modeled on the successful English service introduced in 1784 by John Palmer, which uses specially built coaches to carry the Royal Mail under contract to independent operators. These coaches are designed for speed and efficiency, stopping only for mail collection and delivery, and are protected by armed guards. The Dublin–Waterford route is one of the early inland services added to the network, complementing other major routes such as London–Norwich, Liverpool–Leeds, and London–Dover.

The July 5, 1790 run from Dublin to Waterford is notable because it is the first scheduled mail coach service on that route, replacing slower and less secure methods like mounted riders or carts. It demonstrates the GPO’s ability to extend its network to key inland towns, improving communication between Dublin and the southeast of Ireland. It also reflects the rapid expansion of the mail coach system in Ireland by 1790, with many towns already having daily mail delivery and collection.

While the primary purpose is to carry the Royal Mail, passengers can also travel at a premium fare. The coaches can carry four seated passengers inside and more standing outside, with the driver and guard occupying the front seats. The journey from Dublin to Waterford is relatively short for the time, but still requires careful scheduling to meet the strict post office timetable.

This first run lays the foundation for a regular mail service that becomes a vital part of Ireland’s transport and communication infrastructure until the advent of railways in the 1830s. By the mid-19th century, most of the mail coaches in Ireland are eventually out-competed by Charles Bianconi’s country-wide network of open carriages, before this system in turn succumbs to the railways. The Dublin–Waterford route, like others, is eventually replaced by the faster rail services, but its role in modernizing Ireland’s postal system is crucial.