# Zim Zim Spring, California

Zim Zim Spring in California. 70°F (21°C). Short Walk · Public Land. Napa County.

- Page: https://www.soakingsprings.com/hot-springs/california/zim-zim-spring
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at Zim Zim Spring?

The water leaves the ground at 70°F, about as warm as a heated pool. It's a short walk from the road. We haven't confirmed whether it has a pool or charges a fee.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 70°F (21°C) (USGS record; developed pools are often cooled) |
| Elevation | 902 ft |
| Access | Short Walk · Public Land, 0.1 mi from the nearest road (Knoxville Road) |
| Land | Knoxville Wildlife Area, SFW |
| County | Napa County |
| Nearest town | Angwin |
| Coordinates | 38.75500, -122.28500 |
| Best months to soak | January, December, February (largest gap between water and average air temperature) |
| Nearest campground | OAK SHORES DAY USE AREA (CA), 13.7 mi |

## About Zim Zim Spring

Zim Zim Spring is a named warm spring in the Knoxville Wildlife Area of Napa County, about fifteen miles from Angwin. State conservation land, open to visitors. Its water is logged at 70 degrees, which is a long way short of bath heat. The name is the most memorable thing about it and nothing on file explains it.

Knoxville Road runs a tenth of a mile away; the record calls the approach a short walk. Under a thousand feet, the spring sits in the state wildlife area, where winter brings about twenty inches of rain and snow is a dusting at most. The Oak Shores day use site, nearly fourteen miles away, is the only campground listed.

Midwinter carries the best-months tag on file. Check the wildlife area's current rules before you go, since state conservation land can carry seasonal restrictions. Open access, no fee recorded. Water this cool is for wading at most, and nothing on file says there is anything to wade in.

## Nearby

- Nearest city page: [Hot springs near Angwin](https://www.soakingsprings.com/hot-springs/near/california/angwin), 13 mi away
- State page: [Hot springs in California](https://www.soakingsprings.com/hot-springs/california)
- [One Shot Mining Co, CA](https://www.soakingsprings.com/hot-springs/california/one-shot-mining-co): 72°F source, Short Walk, near Hidden Valley Lake, Lake County
- [Aetna Springs, CA](https://www.soakingsprings.com/hot-springs/california/aetna-springs): 91°F source, Roadside, near Angwin, Napa County
- [Napa Rock Soda Spring, Phillips Sod, CA](https://www.soakingsprings.com/hot-springs/california/napa-rock-soda-spring-phillips-sod): 78°F source, Short Walk, near Yountville, Napa County
- [Baker Soda Spring, CA](https://www.soakingsprings.com/hot-springs/california/baker-soda-spring): 76°F source, Short Walk, near Lower Lake, Lake County
- [Calistoga Hot Springs, CA](https://www.soakingsprings.com/hot-springs/california/calistoga-hot-springs): 172°F source, Roadside, near Calistoga, Napa County
- [Harbin Springs, CA](https://www.soakingsprings.com/hot-springs/california/harbin-springs): 120°F source, Roadside, near Middletown, Lake County

## Questions

**What is the water temperature at Zim Zim Spring?**
Zim Zim Spring has a water temperature of 70°F (21°C). This is a warm thermal spring.

**Where is Zim Zim Spring located?**
Zim Zim Spring is located in Napa County, California at 902 feet elevation, near Angwin. Coordinates: 38.7550°N, 122.2850°W.

**How do I get to Zim Zim Spring?**
Zim Zim Spring has Short Walk road access, with the nearest road being Knoxville Road (0.1 mi from the road).

**Is Zim Zim Spring free to visit?**
Zim Zim Spring has Open access. It is managed by SFW.

**Can I camp near Zim Zim Spring?**
Yes, Oak Shores Day Use Area (Ca) is located nearby (13.7 miles away).

## Sources

- USGS thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals