Main Industries: Located in the heart of New York's new Tech Valley, a region JP Morgan cites as one of the fastest-growing metros in the state, Rensselaer County is energized by dynamics, entrepreneurs and corporate executives, high-tech start-ups and global companies.

Land: The terrain runs from level and flat near the Hudson and then rises into the Rensselaer Plateau around Poestenkill and Sand Lake, then to the Taconic Mountains along the Massachusetts state line. Education: Rensselaer Polytechnic Institute, Russell Sage College and Hudson Valley Community College are located in and around Troy.

Rensselaer County Executive - Steven F. McLaughlin

County Legislature Chair - Kelly Hoffman

• Rensselaer, City of
• Troy, City of
• Berlin, Town of
• Brunswick, Town of
• East Greenbush, Town of
• Grafton, Town of
• Hoosick, Town of
  • Hoosick Falls, Village of
• Nassau, Town of
  • East Nassau, Village of
  • Nassau, Village of
• North Greenbush, Town of
• Petersburgh, Town of
• Pittstown, Town of
  • Valley Falls, Village of (shared with the Town of Schaghticoke)
• Poestenkill, Town of
• Sand Lake, Town of
• Schaghticoke, Town of
  • Schaghticoke, Village of
• Schodack, Town of
  • Castleton-on-Hudson, Village of
• Stephentown, Town of