What this source layer says
510 provisional voters.
SGMAI provisional scrutiny workbook; not the final legal result. Final national and elected-outcome figures remain on the CNE legal-result layer.
São Marcos da Serra Portugal 2025 Assembly provisional scrutiny result: 510 voters, 56.98% turnout, complete ballot accounting, and every published party total. This is a provisional SGMAI geography row, not the final legal result.
SGMAI provisional scrutiny workbook; not the final legal result. Final national and elected-outcome figures remain on the CNE legal-result layer.