Summary
Agincourt Station was constructed by the narrow-gauge Toronto & Nipissing Railway in 1871. It was a small structure with a board-and-batten exterior and an extended roof acting as a shelter above the platform, similar to many other stations built by the Toronto & Nipissing. Agincourt was a small community at the time, having been founded just over ten years prior in 1858 around the intersection of Sheppard and Midland Avenue. The first revenue passenger train arrived at the station on July 12th, 1871 with the launch of one round trip daily offered between Toronto and Uxbridge. The railway was converted to standard gauge in 1881, and merged with several adjacent struggling branch lines the following year under the Midland Railway of Canada. Just two years later in 1884, the Midland Railway was itself acquired by the much larger Grand Trunk Railway. A total of seven trains stopped at Agincourt per day in 1922.
The station saw few modifications in its lifetime. A few decades after the financially struggling Grand Trunk was merged into Canadian National in 1923, an insulbrick façade was added to the outer walls to preserve the wood underneath. Passenger ridership began to sharply decline with the popularization of the automobile, especially after the end of World War Two. By the 1970’s Agincourt had essentially returned to its 1871 schedule of one round trip per day, except service only went up to Stouffville. After CN’s passenger service was spun off as the separate crown corporation VIA Rail in 1977, they would briefly operate the sole service to Agincourt. Budget cuts to VIA in 1981 motivated them to divest a significant amount of their Toronto-area commuter service, most of which was taken over by the provincially-owned GO Transit. A new temporary GO shelter appeared next to Agincourt Station in 1981, after which the original station was torn down. A permanent structure was opened by GO the following year in almost the exact same location, and the first GO train arrived there on September 7th, 1982.
As part of Metrolinx’s Regional Express Rail initiative, the Agincourt GO Station saw a complete replacement. The old GO Station was torn down in February 2021 and a new building completed by October of the same year.
A circa 1900’s photograph of the Toronto & Nipissing Agincourt Station during the Grand Trunk era. Photographer unknown. 
By the time this photo of Agincourt Station was taken in 1962, the wooden exterior of the station was covered with protective insulbrick. Courtesy of the Al Paterson Collection. 
A 1968 aerial photograph of Agincourt station and surrounding buildings, such as the freight shed and grain elevator. Courtesy of the City of Toronto archives. 
A closeup view of Agincourt Station taken from a southbound Rail Diesel Car in October 1971. Photo by Roger Puta.
Condensed Station Info:
| Location: | Served By: | Current State: | Date Built: | Date Demolished: |
| East end of Dowry Street | T&N (1871 – 1882) MRC (1882 – 1884) GTR (1884 – 1923) CNR (1923 – 1978) VIA (1978 – 1981) | Demolished | 1871 | 1981 |