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William Heise County Park RV Camping

Part of RV Camping With Hookups, our guide to RV camping with hookups in San Diego County.

William Heise County Park near Julian offers cabins, trailer sites and tent sites. The county fee table lists it at $39 per night for partial hookup; the County Parks fee page marks these as effective Jan. 2, 2026 (read 2026-10-23). The page says it gets snow every year.Checked October 23, 2026.

$39partial hookup (to confirm)
11 miof trails
4,200 ftelevation
24 hrscamping, 7 days
Address4945 Heise Park Road, Julian, CA 92036
Phone(760) 765-0650
HoursCamping 24 hours a day, 7 days a week
Nightly fee (county table)Partial hookup $39. Extra vehicle $6; $8 reservation fee per site. Fee column to confirm.
Good forAll ages. Playgrounds and 11 miles of trails.

What You Get

The page describes “cabins, trailer sites, tent sites, or a group-tent area” and calls it “one of the few parks in San Diego County that gets snow every year”, so expect winter weather.

Booking And Permits

Book through the County Parks reservation system, online 24 hours a day, or by phone at (858) 565-3600 or (877) 565-3600, Monday to Friday, 8 a.m. to 5 p.m. The county page says online booking is allowed “up to 24 hours before the first day of your stay” and same-day stays are by phone. A reservation fee of $8 per site and $6 per extra vehicle per night appear on the fee table. The advance booking window is not stated on the pages we read.

What We Could Not Verify

  • Read by hand 2026-10-23: the County Parks fee page (headed “January 2026 Fees”) says fees are effective Jan. 2, 2026, and lists full hookup at $42, partial at $39, non-hookup at $36 and tent at $33 per night, plus an $8 reservation fee. Fees can change; County Parks can confirm.
  • The 4,200-foot elevation is from our research notes, not a figure we saw printed on the park page. Not confirmed; County Parks can confirm.
  • Amps and RV length limit are not confirmed.
  • Amps, RV length limit and the advance booking window are not stated on the county page we read. Not confirmed; the park office can confirm.
  • The map point is not shown because no coordinates were confirmed.

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FAQ

Does it snow at William Heise?

The county page says it is one of the few county parks that gets snow every year.

Sources

  1. William Heise County Park (County Parks)
  2. County Parks fee table
  3. County Parks camping reservations

Checked October 23, 2026 by It’s San Diego. Cite this page: It’s San Diego (itssandiego.com), checked October 23, 2026. Free to quote with a link to this page; tables are licensed CC BY 4.0.