The Collaborative International Dictionary of English v.0.48:

Sunset \Sun"set"\, Sunsetting \Sun"set`ting\, n.
   1. The descent of the sun below the horizon; also, the time
      when the sun sets; evening. Also used figuratively.
      [1913 Webster]

            'T is the sunset of life gives me mystical lore.
                                                  --Campbell.
      [1913 Webster]

   2. Hence, the region where the sun sets; the west.
      [1913 Webster]

   Sunset shell (Zool.), a West Indian marine bivalve
      (Tellina radiata) having a smooth shell marked with
      radiating bands of varied colors resembling those seen at
      sunset or before sunrise; -- called also rising sun.
      [1913 Webster]

U.S. Gazetteer Places (2000):

Rising Sun-Lebanon, DE -- U.S. Census Designated Place in Delaware
   Population (2000):    2458
   Housing Units (2000): 940
   Land area (2000):     3.393705 sq. miles (8.789656 sq. km)
   Water area (2000):    0.172929 sq. miles (0.447885 sq. km)
   Total area (2000):    3.566634 sq. miles (9.237541 sq. km)
   FIPS code:            61265
   Located within:       Delaware (DE), FIPS 10
   Location:             39.101229 N, 75.506290 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rising Sun-Lebanon, DE
    Rising Sun-Lebanon
    Rising Sun, DE
    Rising Sun


U.S. Gazetteer Places (2000):

Rising Sun, IN -- U.S. city in Indiana
   Population (2000):    2470
   Housing Units (2000): 1119
   Land area (2000):     1.484035 sq. miles (3.843634 sq. km)
   Water area (2000):    0.102332 sq. miles (0.265039 sq. km)
   Total area (2000):    1.586367 sq. miles (4.108673 sq. km)
   FIPS code:            64674
   Located within:       Indiana (IN), FIPS 18
   Location:             38.949867 N, 84.856782 W
   ZIP Codes (1990):     47040
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rising Sun, IN
    Rising Sun


U.S. Gazetteer Places (2000):

Rising Sun, MD -- U.S. town in Maryland
   Population (2000):    1702
   Housing Units (2000): 716
   Land area (2000):     0.931769 sq. miles (2.413270 sq. km)
   Water area (2000):    0.013335 sq. miles (0.034538 sq. km)
   Total area (2000):    0.945104 sq. miles (2.447808 sq. km)
   FIPS code:            66275
   Located within:       Maryland (MD), FIPS 24
   Location:             39.699434 N, 76.062998 W
   ZIP Codes (1990):     21911
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Rising Sun, MD
    Rising Sun