{{Infobox German location |image_coa = DEU Altenahr COA.svg |coordinates = {{coord|50|31|03|N|06|59|19|E|format=dms|display=inline,title}} |image_plan = Altenahr in AW.svg |state = Rheinland-Pfalz |district = Ahrweiler |Verbandsgemeinde = Altenahr |elevation = 170 |area = 14.84 |postal_code = 53502–53505 |area_code = 02643 |licence = AW |Gemeindeschlüssel = 07 1 31 003 |divisions = 4 |website = {{url|https://www.altenahr-ahr.de/}} |mayor = Rüdiger Fuhrmann<ref name=mayor>[https://www.wahlen.rlp.de/de/kw/wahlen/kd/gebiete/1310000000000.html Direktwahlen 2019, Landkreis Ahrweiler], Landeswahlleiter Rheinland-Pfalz, accessed 3 August 2021.</ref> |leader_term = 2019–24 |party = CDU }}
'''Altenahr''' ({{IPA|de|ˈaltn̩.ʔaːɐ̯|lang}}) is a municipality in the district of Ahrweiler, in Rhineland-Palatinate, Germany. It is the administrative centre for the eponymous collective municipality, to which it belongs. Altenahr is a state-recognised tourist resort and is ranked as a ''Grundzentrum'' for state planning purposes.<ref name="regionaldaten">[http://www.infothek.statistik.rlp.de/MeineHeimat/zeitreihe.aspx?l=3&id=3537&key=0713102003&kmaid=292&zmaid=1001&topic=2047&subject=20 Statistisches Landesamt Rheinland-Pfalz - Regional data]</ref>
== Geography == === Location === Altenahr is situated on the river Ahr, on the northeastern edge of the Ahr Hills. part of the Eifel mountains, approximately 10 kilometres west of Bad Neuenahr-Ahrweiler and about 35 kilometres southwest of Bonn.
=== Administrative organisation === The municipality of Altenahr comprises the following parishes: Altenahr, Altenburg, Kreuzberg and Reimerzhoven.
=== Neighbouring municipalities === Altenahr borders on the following neighbouring municipalities, listed clockwise from the north: Kalenborn, Grafschaft, Mayschoß, Ahrbrück, Lind and Berg.
=== Climate === The annual precipitation is 668 mm which is in the middle third of readings collected for Germany as a whole. 34% of weather stations of the German Meteorological Service record lower values. The driest month is February, the greatest amount of rain falls in July; 1.6 times that of February. However, in general the level of precipitation varies little and is evenly distributed over the year. Only 13% of weather stations record lower seasonal variations.
The town was almost entirely submerged during the 2021 European floods.<ref>[https://www.dw.com/en/flooding-in-germany-before-and-after-images-from-the-ahr-and-eifel-regions/a-58299008 Flooding in Germany: Before and after images from the Ahr and Eifel regions]. Deutsche Welle. 17 Jul 2021.</ref>
== History == Altenahr was first mentioned in 893 in the Prüm Urbar.
=== Incorporations === On 7 June 1969 the hitherto independent municipality of Kreuzberg, with its 560 inhabitants, was incorporated into Altenahr.<ref name="StLaAmt">[http://www.statistik.rlp.de/fileadmin/dokumente/Verzeichnisse/AmtlichesGemeindeverzeichnis_2006.pdf Statistisches Landesamt Rheinland-Pfalz – Amtliches Gemeindeverzeichnis 2006] {{webarchive|url=https://web.archive.org/web/20110718165403/http://www.statistik.rlp.de/fileadmin/dokumente/Verzeichnisse/AmtlichesGemeindeverzeichnis_2006.pdf |date=2011-07-18 }}, pages 168, 177 (pdf; 2.1 MB)</ref>
=== Population growth === The growth in Altenahr's population related to the present-day municipal area; the values from 1871 to 1987 are based on censuses:<ref name="regionaldaten" /><ref>{{Population Germany|key=07|datref=QUELLE}}</ref> {| border="0" | valign="top" | {| class="wikitable" style="margin:0em;" ! Year || Population |- | 1815 || align="right" | 893 |- | 1835 || align="right" | 1,066 |- | 1871 || align="right" | 1,140 |- | 1905 || align="right" | 1,305 |- | 1939 || align="right" | 1,737 |- | 1950 || align="right" | 1,915 |} | valign="top" | {| class="wikitable" style="margin:0em;" ! Year || Population |- | 1961 || align="right" | 2,032 |- | 1970 || align="right" | 2,101 |- | 1987 || align="right" | 1,758 |- | 1997 || align="right" | 1,774 |- | 2005 || align="right" | 1,668 |- | {{Population Germany year|DE-RP}} || align="right" | {{Population Germany|key=07131003}} |} |}
==Gallery== <gallery> File:Altenahr 002-.jpg|Altenahr, aerial photograph, 2015 Image:Altenahr 1900.jpg|Photograph of Altenahr in about 1900 </gallery>
==References== {{Reflist}}
{{Cities and towns in Ahrweiler (district)}}
{{Authority control}}
Category:Populated places in Ahrweiler (district)
{{Ahrweiler-geo-stub}}