Cave Creek Regional Park has partial hookups and a dump station. It's close to restaurants and shopping, and has hiking/biking paths/trails and on-site riding stables.
Cave Creek Regional Park
37900 N. Cave Creek Parkway
Cave Creek, AZ 85331
GPS: 33° 49.508'N 112° 1.116'W
Close to the town of Cave Creek and north Scottsdale. Paved interior roads and level parking pads. Picnic tables, BBQ grills, fire rings, water & electric hookups, dump station (no sewer connections at sites), flush toilets & hot showers.
Reservations highly recommended, as this park is near town and fills fast with "snowbirds". However, there may be limited primitive camping (parking only, no amenities) in overflow parking lot, which is used as a queuing area for RVs awaiting sites in the regular campground.
Website: Parks & Recreation - Maricopa County