Army Corps of Engineers · Iowa
Acorn Valley
Army Corps of Engineers · Iowa, United States
- Sites
- 91
- Hookups
- 29 electric, 3 with water, 1 no hookups
- Season
- May 1 to October 14
- Max RV length
- 72 ft
- Group sites
- Yes
- Drinking water
- Yes
- Showers
- Yes
- Pets
- Yes
- Elevation
- 945 ft
- Dark sky
- Bortle class 5
- Cell coverage
- T-Mobile weak · Verizon weak · AT&T good (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Lake
- Saylorville Lake
- Nearest town
- JOHNSTON
- Address
- SAYLORVILLE LAKE ADMINISTRATION OFFICE, JOHNSTON, IA, 50131-1941
- Phone
- 515-276-0429
- Activities
- Camping, Educational Programs, Fishing, Hiking, Hunting, Marina, Mountain Biking, Swimming, Water Skiing, Wildlife Viewing
90 numbered sites are mapped one by one - open the site map to pick yours.
About
Overview
Acorn Valley Campground is located on the 26,000-acre Saylorville Lake Project, which stretches over 50 miles up the Des Moines River Valley.
The lake provides a wide variety of recreational activities, including camping, bicycling, boating, swimming, fishing, hiking and hunting.
Recreation
Anglers enjoy the lake for its abundance of walleye, wiper, largemouth bass, catfish, crappie and northern pike.
The paved Neal Smith Trail winds 24 miles from Des Moines to Big Creek State Park and connects the campgrounds on the east side of the lake. It is designated as a National Recreation Trail and is used for biking, hiking, jogging, walking and in-line skating.
Facilities
The campground offers 29 family sites with electric hookups and 54 primitive walk-to tent sites. The campground also features 2 group tent camping areas; a youth group camping area with special restrictions to organized youth as well as a standard group area open to all visitors. Amenities include flush toilets, showers, drinking water and a dump station.
Nearby facilities include picnic areas with group shelters, boat ramps, a marina and a fishing dock.
Natural Features
The mature Bur Oaks at the entrance to Acorn Valley beckon visitors to explore its 26 acres on the fringe of an upland timber stand.
Wildlife is abundant throughout the area. White-tailed deer, turkeys, pheasants, waterfowl and other small game animals roam the lands around the lake.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 28° | 9° | -24° | 54° | 11 of 11 |
| February | 36° | 17° | -22° | 67° | 11 of 11 |
| March | 51° | 30° | 7° | 74° | 10 of 11 |
| April | 63° | 40° | 22° | 81° | 5 of 11 |
| May | 72° | 54° | 38° | 88° | 0 of 11 |
| June | 84° | 64° | 49° | 98° | 0 of 11 |
| July | 85° | 68° | 56° | 96° | 0 of 11 |
| August | 82° | 66° | 56° | 94° | 0 of 11 |
| September | 81° | 61° | 47° | 93° | 0 of 11 |
| October | 66° | 45° | 26° | 83° | 3 of 10 |
| November | 49° | 33° | 5° | 72° | 6 of 10 |
| December | 38° | 24° | -13° | 71° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Prairie Flower Recreation Area · Army Corps of Engineers · 2 mi · 252 sites
- Cherry Glen Campground · Army Corps of Engineers · 2 mi · 125 sites
- Bob Shetler Recreation Area · Army Corps of Engineers · 3 mi · 67 sites
- Jester Park · City, County & Regional Parks · 5 mi · 15 sites
- Swede Point Campground · City, County & Regional Parks · 12 mi · 26 sites
All public campgrounds in Iowa · Every state and province · Facts read from the operator 2026-02-25. Confirm fees, rules and current status with the operator before you go.