Diaz (Ilagan) family of Isabela

Diaz (Ilagan) · documented family relationships

4 documented relatives · 3 currently in public office · 4 documented relationships · Province of Isabela

In Isabela the family currently holds office through Josemarie Diaz (Mayor · Ilagan City, Isabela), Jay Eveson Diaz (Vice mayor · Ilagan City, Isabela) and Evyn Jay Diaz (Provincial board member · Isabela D1).

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Who they are

Josemarie Diaz

Mayor · Ilagan City, Isabela

In office

Sources: Ilagan · Elected officials and historical terms; RMN · Jay Eveson Diaz and his parents

See Josemarie Diaz in the map →

Jay Eveson Diaz

Vice mayor · Ilagan City, Isabela

In office

Sources: Ilagan · Elected officials and historical terms; RMN · Jay Eveson Diaz and his parents

See Jay Eveson Diaz in the map →

Evyn Jay Diaz

Provincial board member · Isabela D1

In office

Sources: Isabela · Provincial board biographies; PIA · Isabela 2025 proclaimed officials

See Evyn Jay Diaz in the map →

Evelyn Diaz

Former mayor · Ilagan City, Isabela

Not in office

Sources: Ilagan · Elected officials and historical terms; RMN · Jay Eveson Diaz and his parents

See Evelyn Diaz in the map →

How they are related

• Josemarie Diaz and Evelyn Diaz — MarriedMarriageEvidence: RMN · Jay Eveson Diaz and his parents
• Josemarie Diaz and Jay Eveson Diaz — Father → sonBloodEvidence: RMN · Jay Eveson Diaz and his parents
• Evelyn Diaz and Jay Eveson Diaz — Mother → sonBloodEvidence: RMN · Jay Eveson Diaz and his parents
• Josemarie Diaz and Evyn Jay Diaz — Father → sonBloodEvidence: Isabela · Provincial board biographies

How this was researched

Current offices and historical family connections are distinguished. Municipal and barangay research remains incomplete.

Documented family networks; not a complete government or barangay roster. National offices are distinct from local offices.

Sources

1. Ilagan · Elected officials and historical terms · Reviewed 13 September 2026
2. RMN · Jay Eveson Diaz and his parents · Reviewed 13 September 2026
3. Isabela · Provincial board biographies · Reviewed 13 September 2026
4. PIA · Isabela 2025 proclaimed officials · Reviewed 13 September 2026

Other families documented in Isabela

• AlbanoDocumented subset. Office labels retain their evidence dates; neither the map nor historical service certifies current control.
• Dy–TanSpeaker of the House, vice governor, three representatives, mayors and board members across four generations
• Go (San Mariano)The Go family has held the San Mariano mayor’s office for all but three years since 2004 and the Isabela 2nd district House seat since 2010. Edgar “Bobot” Go and Ana Cristina Siquian Go are the parents of Rep. Ed Christopher Go and Board Member Ed Christian Go.
• Panganiban (Angadanan)Panganiban (Angadanan) · documented family relationships
• Uy (Burgos and Aurora)Burgos and Aurora · two town halls held by brothers, with a spouse in between
• Zuniega (Cordon)Cordon · a former mayor’s children now holding the town’s three top posts

All families and officials in Isabela →