In LA it was $3000 at one clinic (included all dr visits, blood work, ultrasounds and the iui). That didn't include medications. At another, smaller one-doctor clinic, he charged $100 for the iui itself and $175 for each ultrasound. He didn't monitor my blood levels so I didn't have to pay for that.
PS I did get pregnant on my 1st iui cycle ! (after 7 failed non-iui cycles)
The iui itself cost $450 each at my clinic. For me the most expensive part was the medications and ultrasounds before iui since I was doing injectable meds. In total the iui cycle with injectables cost me about $1500-2000, but with clomid it would probably be much cheaper. Good luck. I hope clomid works for you!