2 bedroom apartments for rent in Aachen County – 69 available flats

69 available 2-bedroom apartments in Aachen County found

    2 bedrooms apartment of 65.0 m² - Cozy living space
    2 bedrooms apartment of 65.0 m² - Stylish comfort
    2 bedrooms apartment of 65.0 m² - Your new rental home
    2 bedrooms apartment of 65.0 m² - Excellent rental offer
    2 bedrooms apartment of 65.0 m² - Well-planned
    2 bedrooms apartment of 65.0 m² - Bright interior
    2 bedrooms apartment of 65.0 m² - Efficient space
    2 bedrooms apartment of 65.0 m² - Clever design
    2 bedrooms apartment of 65.0 m² - Ready for rent
    2 bedrooms apartment of 65.0 m² - Airy feel
    2 bedrooms apartment of 65.0 m² - Cozy living space
    2 bedrooms apartment of 65.0 m² - Stylish comfort
    2 bedrooms apartment of 65.0 m² - Your new rental home
    2 bedrooms apartment of 65.0 m² - Excellent rental offer
    2 bedrooms apartment of 65.0 m² - Well-planned
    2 bedrooms apartment of 65.0 m² - Bright interior
    2 bedrooms apartment of 65.0 m² - Efficient space
    2 bedrooms apartment of 65.0 m² - Clever design
    2 bedrooms apartment of 65.0 m² - Ready for rent
    2 bedrooms apartment of 65.0 m² - Airy feel
    2 bedrooms apartment of 65.0 m² - Cozy living space
    2 bedrooms apartment of 65.0 m² - Stylish comfort
    2 bedrooms apartment of 65.0 m² - Your new rental home
    2 bedrooms apartment of 65.0 m² - Excellent rental offer
    2 bedrooms apartment of 65.0 m² - Well-planned

    2 rooms apartment of 65m²

    Otto-Wels-Straße 3, 52477 Alsdorf, Germany

    4.000 € / month

    2 bedrooms apartment of 72.0 m² - Cozy living space
    2 bedrooms apartment of 72.0 m² - Stylish comfort
    2 bedrooms apartment of 72.0 m² - Your new rental home
    2 bedrooms apartment of 72.0 m² - Excellent rental offer
    2 bedrooms apartment of 72.0 m² - Well-planned
    2 bedrooms apartment of 72.0 m² - Bright interior
    2 bedrooms apartment of 72.0 m² - Efficient space
    2 bedrooms apartment of 72.0 m² - Clever design
    2 bedrooms apartment of 72.0 m² - Ready for rent
    2 bedrooms apartment of 72.0 m² - Airy feel
    2 bedrooms apartment of 72.0 m² - Cozy living space
    2 bedrooms apartment of 72.0 m² - Stylish comfort
    2 bedrooms apartment of 72.0 m² - Your new rental home
    2 bedrooms apartment of 72.0 m² - Excellent rental offer
    2 bedrooms apartment of 72.0 m² - Well-planned
    2 bedrooms apartment of 72.0 m² - Bright interior
    2 bedrooms apartment of 72.0 m² - Efficient space
    2 bedrooms apartment of 72.0 m² - Clever design
    2 bedrooms apartment of 72.0 m² - Ready for rent
    2 bedrooms apartment of 72.0 m² - Airy feel
    2 bedrooms apartment of 72.0 m² - Cozy living space
    2 bedrooms apartment of 72.0 m² - Stylish comfort
    2 bedrooms apartment of 72.0 m² - Your new rental home
    2 bedrooms apartment of 72.0 m² - Excellent rental offer
    2 bedrooms apartment of 72.0 m² - Well-planned

    2 rooms apartment of 72m²

    Brunnenhof 13, 52249 Eschweiler, Germany

    3.250 € / month

    2 bedrooms apartment of 65.0 m² - Cozy living space
    2 bedrooms apartment of 65.0 m² - Stylish comfort
    2 bedrooms apartment of 65.0 m² - Your new rental home
    2 bedrooms apartment of 65.0 m² - Excellent rental offer
    2 bedrooms apartment of 65.0 m² - Well-planned
    2 bedrooms apartment of 65.0 m² - Bright interior
    2 bedrooms apartment of 65.0 m² - Efficient space
    2 bedrooms apartment of 65.0 m² - Clever design
    2 bedrooms apartment of 65.0 m² - Ready for rent
    2 bedrooms apartment of 65.0 m² - Airy feel
    2 bedrooms apartment of 65.0 m² - Cozy living space
    2 bedrooms apartment of 65.0 m² - Stylish comfort

    2 rooms apartment of 65m²

    Monheimsallee 7, 9, 52062 Aachen, Germany

    1.900 € / month

    2 bedrooms apartment of 60.0 m² - Cozy living space
    2 bedrooms apartment of 60.0 m² - Stylish comfort
    2 bedrooms apartment of 60.0 m² - Your new rental home

    2 rooms apartment of 60m²

    Kaisersruher Straße 36, 52146 Würselen, Germany

    499 € / month

    2 bedrooms apartment of 37.0 m² - Cozy living space
    2 bedrooms apartment of 37.0 m² - Stylish comfort
    2 bedrooms apartment of 37.0 m² - Your new rental home
    2 bedrooms apartment of 37.0 m² - Excellent rental offer
    2 bedrooms apartment of 37.0 m² - Well-planned
    2 bedrooms apartment of 37.0 m² - Bright interior
    2 bedrooms apartment of 37.0 m² - Efficient space
    2 bedrooms apartment of 37.0 m² - Clever design
    2 bedrooms apartment of 37.0 m² - Ready for rent
    2 bedrooms apartment of 37.0 m² - Airy feel
    2 bedrooms apartment of 37.0 m² - Cozy living space

    2 rooms apartment of 37m²

    Josef-Nacken-Weg 5, 52249 Eschweiler, Germany

    380 € / month

    2 bedrooms apartment of 46.0 m² - Cozy living space
    2 bedrooms apartment of 46.0 m² - Stylish comfort
    2 bedrooms apartment of 46.0 m² - Your new rental home
    2 bedrooms apartment of 46.0 m² - Excellent rental offer
    2 bedrooms apartment of 46.0 m² - Well-planned

    2 rooms apartment of 46m²

    Wilhelmshöhe 5, 52249 Eschweiler, Germany

    409 € / month

    2 bedrooms apartment of 60.0 m² - Cozy living space
    2 bedrooms apartment of 60.0 m² - Stylish comfort
    2 bedrooms apartment of 60.0 m² - Your new rental home
    2 bedrooms apartment of 60.0 m² - Excellent rental offer
    2 bedrooms apartment of 60.0 m² - Well-planned
    2 bedrooms apartment of 60.0 m² - Bright interior
    2 bedrooms apartment of 60.0 m² - Efficient space
    2 bedrooms apartment of 60.0 m² - Clever design
    2 bedrooms apartment of 60.0 m² - Ready for rent
    2 bedrooms apartment of 60.0 m² - Airy feel
    2 bedrooms apartment of 60.0 m² - Cozy living space
    2 bedrooms apartment of 60.0 m² - Stylish comfort
    2 bedrooms apartment of 60.0 m² - Your new rental home
    2 bedrooms apartment of 60.0 m² - Excellent rental offer
    2 bedrooms apartment of 60.0 m² - Well-planned
    2 bedrooms apartment of 60.0 m² - Bright interior
    2 bedrooms apartment of 60.0 m² - Efficient space
    2 bedrooms apartment of 60.0 m² - Clever design
    2 bedrooms apartment of 60.0 m² - Ready for rent
    2 bedrooms apartment of 60.0 m² - Airy feel
    2 bedrooms apartment of 60.0 m² - Cozy living space
    2 bedrooms apartment of 60.0 m² - Stylish comfort
    2 bedrooms apartment of 60.0 m² - Your new rental home
    2 bedrooms apartment of 60.0 m² - Excellent rental offer
    2 bedrooms apartment of 60.0 m² - Well-planned

    2 rooms apartment of 60m²

    Morsbacher Straße 43, 52146 Würselen, Germany

    1.950 € / month

    2 bedrooms apartment of 50.0 m² - Cozy living space
    2 bedrooms apartment of 50.0 m² - Stylish comfort
    2 bedrooms apartment of 50.0 m² - Your new rental home
    2 bedrooms apartment of 50.0 m² - Excellent rental offer
    2 bedrooms apartment of 50.0 m² - Well-planned
    2 bedrooms apartment of 50.0 m² - Bright interior
    2 bedrooms apartment of 50.0 m² - Efficient space

    2 rooms apartment of 50m²

    Memelstraße 1, 52222 Stolberg, Germany

    369 € / month

    2 bedrooms apartment of 75.0 m² - Cozy living space
    2 bedrooms apartment of 75.0 m² - Stylish comfort
    2 bedrooms apartment of 75.0 m² - Your new rental home
    2 bedrooms apartment of 75.0 m² - Excellent rental offer
    2 bedrooms apartment of 75.0 m² - Well-planned
    2 bedrooms apartment of 75.0 m² - Bright interior

    2 rooms apartment of 75m²

    Rochusstraße 62, 52062 Aachen, Germany

    2.200 € / month

    2 bedrooms apartment of 48.0 m² - Cozy living space
    2 bedrooms apartment of 48.0 m² - Stylish comfort
    2 bedrooms apartment of 48.0 m² - Your new rental home
    2 bedrooms apartment of 48.0 m² - Excellent rental offer
    2 bedrooms apartment of 48.0 m² - Well-planned
    2 bedrooms apartment of 48.0 m² - Bright interior
    2 bedrooms apartment of 48.0 m² - Efficient space

    2 rooms apartment of 48m²

    Haus-Heyden-Straße 8a, 52134 Herzogenrath, Germany

    2.200 € / month

    2 bedrooms apartment of 58.0 m² - Cozy living space
    2 bedrooms apartment of 58.0 m² - Stylish comfort
    2 bedrooms apartment of 58.0 m² - Your new rental home
    2 bedrooms apartment of 58.0 m² - Excellent rental offer
    2 bedrooms apartment of 58.0 m² - Well-planned
    2 bedrooms apartment of 58.0 m² - Bright interior
    2 bedrooms apartment of 58.0 m² - Efficient space
    2 bedrooms apartment of 58.0 m² - Clever design
    2 bedrooms apartment of 58.0 m² - Ready for rent
    2 bedrooms apartment of 58.0 m² - Airy feel
    2 bedrooms apartment of 58.0 m² - Cozy living space
    2 bedrooms apartment of 58.0 m² - Stylish comfort
    2 bedrooms apartment of 58.0 m² - Your new rental home
    2 bedrooms apartment of 58.0 m² - Excellent rental offer
    2 bedrooms apartment of 58.0 m² - Well-planned
    2 bedrooms apartment of 58.0 m² - Bright interior
    2 bedrooms apartment of 58.0 m² - Efficient space
    2 bedrooms apartment of 58.0 m² - Clever design

    2 rooms apartment of 58m²

    Prämienstraße 45, 52223 Stolberg, Germany

    2.100 € / month

    2 bedrooms apartment of 61.0 m² - Cozy living space
    2 bedrooms apartment of 61.0 m² - Stylish comfort
    2 bedrooms apartment of 61.0 m² - Your new rental home
    2 bedrooms apartment of 61.0 m² - Excellent rental offer
    2 bedrooms apartment of 61.0 m² - Well-planned
    2 bedrooms apartment of 61.0 m² - Bright interior
    2 bedrooms apartment of 61.0 m² - Efficient space
    2 bedrooms apartment of 61.0 m² - Clever design
    2 bedrooms apartment of 61.0 m² - Ready for rent
    2 bedrooms apartment of 61.0 m² - Airy feel
    2 bedrooms apartment of 61.0 m² - Cozy living space
    2 bedrooms apartment of 61.0 m² - Stylish comfort
    2 bedrooms apartment of 61.0 m² - Your new rental home
    2 bedrooms apartment of 61.0 m² - Excellent rental offer
    2 bedrooms apartment of 61.0 m² - Well-planned
    2 bedrooms apartment of 61.0 m² - Bright interior

    2 rooms apartment of 61m²

    Ackerstraße 44, 52134 Herzogenrath, Germany

    1.941 € / month

    2 bedrooms apartment of 70.0 m² - Cozy living space
    2 bedrooms apartment of 70.0 m² - Stylish comfort
    2 bedrooms apartment of 70.0 m² - Your new rental home
    2 bedrooms apartment of 70.0 m² - Excellent rental offer
    2 bedrooms apartment of 70.0 m² - Well-planned
    2 bedrooms apartment of 70.0 m² - Bright interior
    2 bedrooms apartment of 70.0 m² - Efficient space
    2 bedrooms apartment of 70.0 m² - Clever design
    2 bedrooms apartment of 70.0 m² - Ready for rent
    2 bedrooms apartment of 70.0 m² - Airy feel
    2 bedrooms apartment of 70.0 m² - Cozy living space
    2 bedrooms apartment of 70.0 m² - Stylish comfort
    2 bedrooms apartment of 70.0 m² - Your new rental home
    2 bedrooms apartment of 70.0 m² - Excellent rental offer
    2 bedrooms apartment of 70.0 m² - Well-planned
    2 bedrooms apartment of 70.0 m² - Bright interior
    2 bedrooms apartment of 70.0 m² - Efficient space
    2 bedrooms apartment of 70.0 m² - Clever design

    2 rooms apartment of 70m²

    Prämienstraße 45, 52223 Stolberg, Germany

    2.200 € / month

    2 bedrooms apartment of 90.0 m² - Cozy living space
    2 bedrooms apartment of 90.0 m² - Stylish comfort
    2 bedrooms apartment of 90.0 m² - Your new rental home
    2 bedrooms apartment of 90.0 m² - Excellent rental offer
    2 bedrooms apartment of 90.0 m² - Well-planned
    2 bedrooms apartment of 90.0 m² - Bright interior
    2 bedrooms apartment of 90.0 m² - Efficient space
    2 bedrooms apartment of 90.0 m² - Clever design
    2 bedrooms apartment of 90.0 m² - Ready for rent
    2 bedrooms apartment of 90.0 m² - Airy feel
    2 bedrooms apartment of 90.0 m² - Cozy living space
    2 bedrooms apartment of 90.0 m² - Stylish comfort
    2 bedrooms apartment of 90.0 m² - Your new rental home

    2 rooms apartment of 90m²

    Büsbacher Berg 56, 52223 Stolberg, Germany

    2.400 € / month

    2 bedrooms apartment of 52.0 m² - Cozy living space
    2 bedrooms apartment of 52.0 m² - Stylish comfort
    2 bedrooms apartment of 52.0 m² - Your new rental home
    2 bedrooms apartment of 52.0 m² - Excellent rental offer
    2 bedrooms apartment of 52.0 m² - Well-planned
    2 bedrooms apartment of 52.0 m² - Bright interior
    2 bedrooms apartment of 52.0 m² - Efficient space
    2 bedrooms apartment of 52.0 m² - Clever design
    2 bedrooms apartment of 52.0 m² - Ready for rent
    2 bedrooms apartment of 52.0 m² - Airy feel
    2 bedrooms apartment of 52.0 m² - Cozy living space
    2 bedrooms apartment of 52.0 m² - Stylish comfort
    2 bedrooms apartment of 52.0 m² - Your new rental home
    2 bedrooms apartment of 52.0 m² - Excellent rental offer
    2 bedrooms apartment of 52.0 m² - Well-planned
    2 bedrooms apartment of 52.0 m² - Bright interior
    2 bedrooms apartment of 52.0 m² - Efficient space
    2 bedrooms apartment of 52.0 m² - Clever design
    2 bedrooms apartment of 52.0 m² - Ready for rent
    2 bedrooms apartment of 52.0 m² - Airy feel
    2 bedrooms apartment of 52.0 m² - Cozy living space
    2 bedrooms apartment of 52.0 m² - Stylish comfort
    2 bedrooms apartment of 52.0 m² - Your new rental home
    2 bedrooms apartment of 52.0 m² - Excellent rental offer
    2 bedrooms apartment of 52.0 m² - Well-planned

    2 rooms apartment of 52m²

    FNT Textilreinigung, Kapellenstraße 43, 52066 Aachen, Germany

    1.500 € / month

    2 bedrooms apartment of 77.0 m² - Cozy living space
    2 bedrooms apartment of 77.0 m² - Stylish comfort
    2 bedrooms apartment of 77.0 m² - Your new rental home
    2 bedrooms apartment of 77.0 m² - Excellent rental offer
    2 bedrooms apartment of 77.0 m² - Well-planned
    2 bedrooms apartment of 77.0 m² - Bright interior
    2 bedrooms apartment of 77.0 m² - Efficient space
    2 bedrooms apartment of 77.0 m² - Clever design
    2 bedrooms apartment of 77.0 m² - Ready for rent
    2 bedrooms apartment of 77.0 m² - Airy feel
    2 bedrooms apartment of 77.0 m² - Cozy living space
    2 bedrooms apartment of 77.0 m² - Stylish comfort
    2 bedrooms apartment of 77.0 m² - Your new rental home
    2 bedrooms apartment of 77.0 m² - Excellent rental offer
    2 bedrooms apartment of 77.0 m² - Well-planned
    2 bedrooms apartment of 77.0 m² - Bright interior
    2 bedrooms apartment of 77.0 m² - Efficient space
    2 bedrooms apartment of 77.0 m² - Clever design
    2 bedrooms apartment of 77.0 m² - Ready for rent
    2 bedrooms apartment of 77.0 m² - Airy feel
    2 bedrooms apartment of 77.0 m² - Cozy living space
    2 bedrooms apartment of 77.0 m² - Stylish comfort
    2 bedrooms apartment of 77.0 m² - Your new rental home
    2 bedrooms apartment of 77.0 m² - Excellent rental offer
    2 bedrooms apartment of 77.0 m² - Well-planned

    2 rooms apartment of 77m²

    Alte Aachener Straße 12, 52477 Alsdorf, Germany

    2.100 € / month

    2 bedrooms apartment of 53.0 m² - Cozy living space
    2 bedrooms apartment of 53.0 m² - Stylish comfort
    2 bedrooms apartment of 53.0 m² - Your new rental home
    2 bedrooms apartment of 53.0 m² - Excellent rental offer
    2 bedrooms apartment of 53.0 m² - Well-planned
    2 bedrooms apartment of 53.0 m² - Bright interior
    2 bedrooms apartment of 53.0 m² - Efficient space
    2 bedrooms apartment of 53.0 m² - Clever design
    2 bedrooms apartment of 53.0 m² - Ready for rent

    2 rooms apartment of 53m²

    Hermann-Löns-Straße 93, 52078 Aachen, Germany

    1.600 € / month

    2 bedrooms apartment of 80.0 m² - Cozy living space
    2 bedrooms apartment of 80.0 m² - Stylish comfort
    2 bedrooms apartment of 80.0 m² - Your new rental home
    2 bedrooms apartment of 80.0 m² - Excellent rental offer
    2 bedrooms apartment of 80.0 m² - Well-planned
    2 bedrooms apartment of 80.0 m² - Bright interior
    2 bedrooms apartment of 80.0 m² - Efficient space
    2 bedrooms apartment of 80.0 m² - Clever design
    2 bedrooms apartment of 80.0 m² - Ready for rent
    2 bedrooms apartment of 80.0 m² - Airy feel
    2 bedrooms apartment of 80.0 m² - Cozy living space
    2 bedrooms apartment of 80.0 m² - Stylish comfort
    2 bedrooms apartment of 80.0 m² - Your new rental home
    2 bedrooms apartment of 80.0 m² - Excellent rental offer
    2 bedrooms apartment of 80.0 m² - Well-planned
    2 bedrooms apartment of 80.0 m² - Bright interior
    2 bedrooms apartment of 80.0 m² - Efficient space
    2 bedrooms apartment of 80.0 m² - Clever design
    2 bedrooms apartment of 80.0 m² - Ready for rent
    2 bedrooms apartment of 80.0 m² - Airy feel
    2 bedrooms apartment of 80.0 m² - Cozy living space

    2 rooms apartment of 80m²

    Lintertstraße 211, 52076 Aachen, Germany

    1.600 € / month

    2 bedrooms apartment of 68.0 m² - Cozy living space
    2 bedrooms apartment of 68.0 m² - Stylish comfort
    2 bedrooms apartment of 68.0 m² - Your new rental home
    2 bedrooms apartment of 68.0 m² - Excellent rental offer
    2 bedrooms apartment of 68.0 m² - Well-planned
    2 bedrooms apartment of 68.0 m² - Bright interior
    2 bedrooms apartment of 68.0 m² - Efficient space
    2 bedrooms apartment of 68.0 m² - Clever design
    2 bedrooms apartment of 68.0 m² - Ready for rent
    2 bedrooms apartment of 68.0 m² - Airy feel
    2 bedrooms apartment of 68.0 m² - Cozy living space
    2 bedrooms apartment of 68.0 m² - Stylish comfort
    2 bedrooms apartment of 68.0 m² - Your new rental home
    2 bedrooms apartment of 68.0 m² - Excellent rental offer
    2 bedrooms apartment of 68.0 m² - Well-planned
    2 bedrooms apartment of 68.0 m² - Bright interior
    2 bedrooms apartment of 68.0 m² - Efficient space
    2 bedrooms apartment of 68.0 m² - Clever design
    2 bedrooms apartment of 68.0 m² - Ready for rent
    2 bedrooms apartment of 68.0 m² - Airy feel
    2 bedrooms apartment of 68.0 m² - Cozy living space
    2 bedrooms apartment of 68.0 m² - Stylish comfort
    2 bedrooms apartment of 68.0 m² - Your new rental home
    2 bedrooms apartment of 68.0 m² - Excellent rental offer

    2 rooms apartment of 68m²

    Hargard 28, 52156 Monschau, Germany

    1.590 € / month

    2 bedrooms apartment of 110.0 m² - Cozy living space
    2 bedrooms apartment of 110.0 m² - Stylish comfort
    2 bedrooms apartment of 110.0 m² - Your new rental home
    2 bedrooms apartment of 110.0 m² - Excellent rental offer
    2 bedrooms apartment of 110.0 m² - Well-planned
    2 bedrooms apartment of 110.0 m² - Bright interior
    2 bedrooms apartment of 110.0 m² - Efficient space
    2 bedrooms apartment of 110.0 m² - Clever design
    2 bedrooms apartment of 110.0 m² - Ready for rent
    2 bedrooms apartment of 110.0 m² - Airy feel
    2 bedrooms apartment of 110.0 m² - Cozy living space
    2 bedrooms apartment of 110.0 m² - Stylish comfort
    2 bedrooms apartment of 110.0 m² - Your new rental home
    2 bedrooms apartment of 110.0 m² - Excellent rental offer
    2 bedrooms apartment of 110.0 m² - Well-planned
    2 bedrooms apartment of 110.0 m² - Bright interior
    2 bedrooms apartment of 110.0 m² - Efficient space
    2 bedrooms apartment of 110.0 m² - Clever design
    2 bedrooms apartment of 110.0 m² - Ready for rent
    2 bedrooms apartment of 110.0 m² - Airy feel
    2 bedrooms apartment of 110.0 m² - Cozy living space
    2 bedrooms apartment of 110.0 m² - Stylish comfort
    2 bedrooms apartment of 110.0 m² - Your new rental home
    2 bedrooms apartment of 110.0 m² - Excellent rental offer
    2 bedrooms apartment of 110.0 m² - Well-planned

    2 rooms apartment of 110m²

    Hauptstraße 116, 52146 Würselen, Germany

    1.750 € / month

    2 bedrooms apartment of 90.0 m² - Cozy living space
    2 bedrooms apartment of 90.0 m² - Stylish comfort
    2 bedrooms apartment of 90.0 m² - Your new rental home
    2 bedrooms apartment of 90.0 m² - Excellent rental offer
    2 bedrooms apartment of 90.0 m² - Well-planned
    2 bedrooms apartment of 90.0 m² - Bright interior
    2 bedrooms apartment of 90.0 m² - Efficient space
    2 bedrooms apartment of 90.0 m² - Clever design
    2 bedrooms apartment of 90.0 m² - Ready for rent
    2 bedrooms apartment of 90.0 m² - Airy feel
    2 bedrooms apartment of 90.0 m² - Cozy living space
    2 bedrooms apartment of 90.0 m² - Stylish comfort
    2 bedrooms apartment of 90.0 m² - Your new rental home
    2 bedrooms apartment of 90.0 m² - Excellent rental offer
    2 bedrooms apartment of 90.0 m² - Well-planned
    2 bedrooms apartment of 90.0 m² - Bright interior
    2 bedrooms apartment of 90.0 m² - Efficient space
    2 bedrooms apartment of 90.0 m² - Clever design
    2 bedrooms apartment of 90.0 m² - Ready for rent
    2 bedrooms apartment of 90.0 m² - Airy feel

    2 rooms apartment of 90m²

    An der Rast 3a, 52072 Aachen, Germany

    1.600 € / month

Other property types in Aachen County