Brook, IN -- U.S. town in Indiana Population (2000): 1062 Housing Units (2000): 423 Land area (2000): 0.660769 sq. miles (1.711385 sq. km) Water area (2000): 0.009309 sq. miles (0.024109 sq. km) Total area (2000): 0.670078 sq. miles (1.735494 sq. km) FIPS code: 07966 Located within: Indiana (IN), FIPS 18 Location: 40.866026 N, 87.365812 W ZIP Codes (1990): 47922 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Brook, IN Brook