{{short description|Part of Valromey-sur-Séran in Auvergne-Rhône-Alpes, France}} {{Expand French|topic=geo|date=December 2008|Lompnieu}} {{Infobox French commune |name = Lompnieu |image = Lompnieu work001.JPG |arrondissement = Belley |canton = Plateau d'Hauteville |commune = Valromey-sur-Séran |INSEE = 01221 |postal code = 01260 |coordinates = {{coord|45.9617|5.6608|format=dms|display=inline,title}} |elevation m = 650 |elevation min m = 524 |elevation max m = 1241 |area km2 = 11.35 |population = 135 |population date = 2022 |population footnotes = <ref name=pop2022>{{cite web|url=https://www.insee.fr/fr/statistiques/fichier/8290591/ensemble.pdf|title=Populations de référence 2022|language=fr|trans-title=Reference populations 2022|publisher=INSEE|date=December 2024}}</ref> }}
'''Lompnieu''' is a former commune in the Ain department in eastern France. On 1 January 2019, it was merged into the new commune Valromey-sur-Séran.<ref>[https://www.legifrance.gouv.fr/eli/arrete/2018/12/17/TERB1900533A/jo/texte Arrêté préfectoral] 17 December 2018 {{in lang|fr}}</ref>
It is located in La Val Romey, which means, "The Roman Valley." The Romans built several outposts in the valley.
Lompnieu is located near the base of the large valley, with forest mounting on one side, and a plain with larger mountains looming on the other side. On a clear day, the snow-covered Alps can be seen. Lompnieu is around 600 metres in elevation. The climate is rather hot in the summer, attaining into the 1990s, and fairly cold in winter, with several large snow falls.
==Population== {{Historical populations |source = INSEE<ref>[https://www.insee.fr/fr/statistiques/2123937?geo=COM-01221 Populations légales 2011], INSEE</ref><ref>[https://www.insee.fr/fr/statistiques/3293086?geo=COM-01221 Populations légales 2015], INSEE</ref><ref name=pop2022/> |percentages = pagr |align = none |2006|96 |2011|125 |2015|113 |2022|135 }}
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==See also== *Communes of the Ain department
==References== {{reflist}}
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Category:Former communes of Ain Category:Ain communes articles needing translation from French Wikipedia Category:Communes of France disestablished in 2019 {{Belley-geo-stub}}