Barbie: Cost at Cochiti Lake is $10 per night for a paved site on a paved road with water and electric. Also has covered picnic tables and grills. That is in the Buffalo Grove loop. It is COE, so that cost assumes you have your senior pass. It is about 25 miles from Santa Fe, and check with me if you ever get here because there are some tricks for parking in downtown Santa Fe or in the Museum Hill area.
Also, there is another COE campground north of here in Georgia O'Keefe country. It is call Abiquiu Riana Campground, but I cannot pronounce it. It's about 90 miles from here, and senior cost is $8 per night, also with electric and water. Nearly all COE campground have paved sites and water and electric.
However, there are a lot of very nice, really cheap camping spots in New Mexico that you should check into. I just spent 14 nights at Oliver Lee near Alamogordo with $14 per night with water and electric with a great view. I also recently stayed at Rockhound, which is small but scenic and very, very quiet.
New Mexico has the best deal for a camping pass that I have found anywhere. Cost for out-of-state people is $225 per year (12 months). You can call them to check because I could not find a good explanation on their website, but I bought one a couple of years ago, and used it quite a bit. Basically, it gives you unlimited stays at NM state parks and waives the $10 fee for a basic site. If you want an electric site, you pay an additional $4 fee for that. (Also a reservation fee.) There is the usual 14 day maximum stay, but there are enough parks that you can schedule several campgrounds and use the permit for each. (I spent 45 days at SPs in NM in 2021, and used the pass for all of them.)
The only problem that I have with NM state parks is that many of them have gravel roads and gravel camping spots, which can cause dust, but it depends on which spot you choose. I did not like the five electric sites at City of Rocks because they were on the main entrance road and every single vehicle coming in or out drove past and set up a cloud of dust. But that was NOT true with Oliver Lee or several others.
Go onto my recent postings on my blog and also back into March and April of 2021 to see photos on my stay then.
http://grandmajjb.blogspot.com/