Every ten years, Elections Canada adjusts riding boundaries to reflect changes in population growth and to better balance each riding. Hamilton Centre's new federal boundaries came into effect on March 28, 2025 and will remain as such until at least 2035.

Boundary Description:
Hamilton Centre consists of that part of the City of Hamilton described as follows: commencing at the intersection of the northerly limit of Hamilton and Highway 403 (Alexander Graham Bell Parkway); thence generally southerly and southwesterly along said highway to an electric power transmission line situated westerly of Chateau Court; thence southerly along said transmission line to the Niagara Escarpment; thence generally easterly, southerly and northeasterly along said escarpment to Red Hill Valley Parkway; thence generally northerly along said parkway to King Street East; thence northwesterly along said street to Parkdale Avenue South; thence northerly along said avenue and Parkdale Avenue North to Burlington Street East (Nikola Tesla Boulevard); thence westerly along said street to Strathearne Avenue; thence northerly along said avenue to Pier 24 Gateway; thence generally northeasterly along said gateway to the northeasterly shoreline of Hamilton Harbour; thence generally northwesterly along said shoreline to the northerly limit of said city; thence southwesterly, northwesterly and generally southwesterly along said limit to the point of commencement.
Source: Elections Canada - Maps and Boundaries - Hamilton Centre