The Collaborative International Dictionary of English v.0.48:

Hayward \Hay"ward\ (h[=a]"w[~e]rd), n. [Hay a hedge + ward.]
   An officer who is appointed to guard hedges, and to keep
   cattle from breaking or cropping them, and whose further duty
   it is to impound animals found running at large.
   [1913 Webster]

U.S. Gazetteer Places (2000):

Hayward, MO -- U.S. town in Missouri
   Population (2000):    123
   Housing Units (2000): 48
   Land area (2000):     0.236015 sq. miles (0.611277 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.236015 sq. miles (0.611277 sq. km)
   FIPS code:            31186
   Located within:       Missouri (MO), FIPS 29
   Location:             36.396184 N, 89.666114 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Hayward, MO
    Hayward


U.S. Gazetteer Places (2000):

Hayward, CA -- U.S. city in California
   Population (2000):    140030
   Housing Units (2000): 45922
   Land area (2000):     44.333256 sq. miles (114.822601 sq. km)
   Water area (2000):    18.711206 sq. miles (48.461799 sq. km)
   Total area (2000):    63.044462 sq. miles (163.284400 sq. km)
   FIPS code:            33000
   Located within:       California (CA), FIPS 06
   Location:             37.643632 N, 122.076971 W
   ZIP Codes (1990):     94541 94542 94544 94545
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Hayward, CA
    Hayward


U.S. Gazetteer Places (2000):

Hayward, MN -- U.S. city in Minnesota
   Population (2000):    249
   Housing Units (2000): 116
   Land area (2000):     0.621812 sq. miles (1.610486 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.621812 sq. miles (1.610486 sq. km)
   FIPS code:            27944
   Located within:       Minnesota (MN), FIPS 27
   Location:             43.649312 N, 93.246909 W
   ZIP Codes (1990):     56043
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Hayward, MN
    Hayward


U.S. Gazetteer Places (2000):

Hayward, WI -- U.S. city in Wisconsin
   Population (2000):    2129
   Housing Units (2000): 1064
   Land area (2000):     2.968612 sq. miles (7.688670 sq. km)
   Water area (2000):    0.240870 sq. miles (0.623850 sq. km)
   Total area (2000):    3.209482 sq. miles (8.312520 sq. km)
   FIPS code:            33450
   Located within:       Wisconsin (WI), FIPS 55
   Location:             46.013085 N, 91.483874 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Hayward, WI
    Hayward