|• Municipality||421 km2 (163 sq mi)|
|• Municipality density||32/km2 (83/sq mi)|
|Time zone||UTC+2 (EET)|
|• Summer (DST)||UTC+3 (EEST)|
The municipality Ermionida was formed at the 2011 local government reform by the merger of the following 2 former municipalities, that became municipal units:
The province of Ermionida (Greek: Επαρχία Ερμιονίδας) was one of the three provinces of Argolis Prefecture. It was abolished in 2006. Its territory covered the territory of the present Ermionida municipality.
- "Απογραφή Πληθυσμού - Κατοικιών 2011. ΜΟΝΙΜΟΣ Πληθυσμός" (in Greek). Hellenic Statistical Authority.
- "ΦΕΚ A 87/2010, Kallikratis reform law text" (in Greek). Government Gazette.
- "Population & housing census 2001 (incl. area and average elevation)" (PDF) (in Greek). National Statistical Service of Greece. Archived from the original (PDF) on 2015-09-21.
- "Detailed census results 1991" (PDF). Archived from the original (PDF) on 2016-03-03. (39 MB) (in Greek and French)