No historic monuments in Altenach
25% of compared French towns have no historic monument either. Hirtzbach, 8.5 km from Altenach, is the nearest town with a classé monument.
The nearest classé monuments to Altenach
Towns within 15.5 mi with at least one classé monument, nearest first.
| Town | Distance | Monuments | Classé | Protected area |
|---|---|---|---|---|
| Hirtzbach | 5.3 mi | 2 | 1 | — |
| Altkirch | 6 mi | 10 | 1 | — |
| Bellemagny | 6.2 mi | 1 | 1 | — |
| Frais | 6.4 mi | 1 | 1 | — |
| Illfurth | 8.6 mi | 3 | 1 | — |
| Feldbach | 8.7 mi | 1 | 1 | — |
4 towns in Haut-Rhin have protected historic areas: Mulhouse, Colmar, Neuf-Brisach, Riquewihr.
22% of homes in Altenach were built before 1919
Main homes by when they were finished, beside the median compared French town (the tick).
22% of its main homes were built before 1919; the median compared French town has 7.4%. More of them were finished between 1971 and 1990 than in any other period (27%).
INSEE, census 2023: main homes (résidences principales) only; second homes and empty homes aren’t dated.
Altenach in brief
Old houses are part of Altenach’s character: 22% of its homes were built before 1919, against 7.4% in the median compared French town. Nothing in Altenach is on the list; the nearest place with classé monuments is Hirtzbach, 5.3 mi away.
France has no History Grade yet: this page describes, it doesn’t grade.
Sources: Ministère de la Culture, Mérimée base on POP (immeubles protégés au titre des monuments historiques), October 2026 · Ministère de la Culture, sites patrimoniaux remarquables, October 2026 · INSEE, census 2023 (main homes by build period) · IGN Admin Express (boundaries) · Medians and percentiles: TownRatings, over compared French towns, updated November 9, 2026. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.