We went to Fremont for John C Fremont days and the camping was all taken.  We heard Hooper had camping and went there for a couple nights stay.

There is a City Park with a pool and ball-field and they let you park your camper just about wherever you can.  If you park by the picnic shelter you can plug in and they don't care.  The pool lets you shower for free and there are flush toilets available throughout the night.  The Golf course had a tournament that was very well attended so I assume the golfing is good.

There was no charge for camping.