The FHA loan limits for Utah County are as follows:
Single Family Home – $323,750
Duplex (2-family) – $414,450
Triplex (3-family) – $500,950
4-plex (4-family) – $622,600

The FHA loan limits for Salt Lake County are as follows:
Single Family Home – $729,750
Duplex (2-family) – $934,200
Triplex (3-family) – $1,129,250
4-plex (4-family) – $1,403,400

These limits were effective as of Wednesday, February 25, 2009.
For more current info check at HUD.gov