As of 2026, Seeham has an estimated population of 2,350 residents, according to figures from Statistics Austria.[4] The municipality covers an area of 10.40 km², resulting in a population density of approximately 250 inhabitants per square kilometer.[4] Between 2021 and 2026, the population grew at an average annual rate of 1.4%, reflecting a modest but steady increase.[4]
The gender distribution in Seeham is relatively balanced, with 1,008 males (49.5%) and 1,027 females (50.5%).[4] The age structure indicates a mature and stable population: 17.7% are children under 18 years old, 62.2% are in the working-age group of 18 to 64, and 20.1% are seniors aged 65 and over.[4]
A large majority of the population (85.9%) hold Austrian citizenship. Citizens from other European Union countries, EFTA states, or the United Kingdom make up 9.4%, while 1.9% hold citizenship from non-European countries.[4] The figures for country of birth closely mirror the citizenship statistics, with 87.7% born in Austria, 8.9% born in other European Union, EFTA countries, or the United Kingdom, and 3.4% born outside of Europe.[4]
These figures suggest that while Seeham remains predominantly Austrian in its demographic makeup, it is also home to a small but notable international community, primarily from within Europe.[4]
