Galway vs. Derry: Which City Is Larger?

Derry/Londonderry Has a Larger Population

Contrary to some sources, Derry (Londonderry) has a larger population than Galway when comparing equivalent urban area definitions.

2022/2021 Census Data (Most Recent)

• Galway City (Cathair na Gaillimhe): 85,910 (2022 Census, city boundary). Metropolitan area: ~100,000.
• Derry City (Doire / Londonderry): 83,652 (2021 Census, "Derry Urban Area" / "Derry City and Strabane District" core). The wider Derry City and Strabane District = 150,679.

Why the Confusion?

• Different geographies: "Galway City" (local authority) vs. "Derry Urban Area" (built-up area). The 105,000 figure often cited for Derry includes the Strabane district or 2011 "Derry Urban Area" (105,064) which had a broader boundary.
• Cross-border complexity: Derry's functional urban area extends into County Donegal (Republic of Ireland), complicating counts.
• Growth rates: Galway has grown faster recently (tech, pharma, university); Derry's growth has been slower.

Significance

Both are vital regional capitals: Galway (west of Ireland, Gaeltacht, university, med-tech hub); Derry (northwest, cross-border, shirt-making heritage, UK City of Culture 2013). In the Republic, Galway is the 4th largest city (after Dublin, Cork, Limerick). In Northern Ireland, Derry is the 2nd largest (after Belfast).

Bottom Line

Derry's core urban population is slightly larger than Galway's city proper, but they are very close (~84k–86k). Metropolitan/functional areas differ. For most purposes, they are peer cities.