Erny-Saint-Julien
Erni
The town hall of Erny-Saint-Julien
Coat of arms
Location of Erny-Saint-Julien
Show map of Hauts-de-France Coordinates:50°35′11″N 2°15′19″E / 50.5864°N 2.2553°E /50.5864; 2.2553 Country France Region Hauts-de-France Department Pas-de-Calais Arrondissement Saint-Omer Canton Fruges Intercommunality Pays de Saint-Omer Government
• Mayor(2020–2026) Jean-Claude Dupont[ 1] 5.41 km2 (2.09 sq mi) Population 338 • Density 62.5/km2 (162/sq mi) Time zone UTC+01:00 (CET ) • Summer (DST ) UTC+02:00 (CEST )INSEE /Postal codeElevation 66–173 m (217–568 ft) (avg. 76 m or 249 ft) 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.