California rivers and streams

Napa River Fishing

Napa County and Solano County, CDFW Bay Delta Region.

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California rivers

A look at the Napa River

Anglers find the Napa River, a river, in Napa County and Solano County, part of the CDFW Bay Delta Region. The stream line on the CDFW layer measures about 57 miles.

The Fishing Guide lists catfish and striped bass. Flow data: 2 USGS gauges. Boaters and paddlers have 4 launches on it.

57miles mapped
2counties
2USGS gauges
4launches
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From CDFW

What CDFW says about the Napa River

“The Napa River enters San Pablo Bay from the Napa Valley, northeast of San Franciso.”

Quoted from the CDFW Fishing Guide (source). Checked October 2026.

CDFW entryCountyReachElevation (ft)Boat rampBackcountry
Napa RiverNapayesno
Flow

Flow on the Napa River

USGS gaugeLatest readingTime (ET)
Napa R Nr St Helena Ca1 cfs, 1.30 ft gage heightNov 13 8:15 am
Napa R Nr Napa Ca0 cfs, 2.11 ft gage heightNov 13 8:15 am

US Geological Survey provisional data, retrieved Nov 13, 2026 8:32 am ET. Provisional readings can be revised.

Access

Launches on the Napa River

  • Boat launch, Napa Riverboat launch, Napa County
  • Kennedy Park2 lanes, 25 trailer spaces, restrooms, Napa County
  • Cuttings Wharf2 lanes, 40 trailer spaces, restrooms, Napa County
  • Napa Sea Ranch3 lanes, 500 trailer spaces, restrooms, Napa County

Launches from DBW, USFS and OpenStreetMap; midpoint from the CDFW streams layer.

Limits

The Napa River regulations

The table below is the rule set on the Napa River.

SpeciesDaily bagSizeSeason
Trout5 a daynoneLast Saturday in April through November 15
Black bass5 a daynoneAll year
Striped bass2 a day18 in minimumAll year except closures in special regulations
Sunfish and crappie25 a daynoneAll year, except closures under district or special regulations
Coho salmonnone (release)nonesee rule

For district rules, the Napa River is in the North Central District.

CDFW 2026 Freshwater Sport Fishing Regulations. All California limits.

Nearby

Outside Napa River

Neighbor lakes to Napa River

  • Lake Hennessey6 miles
  • Lake Berryessa14 miles
  • Santa Rosa Creek Reservoir17 miles
  • Ralphine Lake18 miles

Shops a short drive from Napa River

  • Big 5 Sporting Goods #122sporting goods store, Napa, 7 miles
  • Worm Endings Unlimitedbait and tackle shop, Napa, 8 miles
  • Sweeney's Sportssporting goods store, Napa, 10 miles
  • Big 5 Sporting Goods #526sporting goods store, Sonoma, 10 miles
  • Leland Flyfishing Outfittersfly shop, Sonoma, 15 miles

Closest communities to Napa River

Other streams near the Napa River

Which counties Napa River touches

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Answers

The Napa River, answered

Where does the Napa River run?

Napa County and Solano County.

Are there trout in the Napa River?

CDFW notes catfish and striped bass.

When is trout season on the Napa River?

Streams open the last Saturday in April and close November 15 by default.

Does a USGS station measure the Napa River?

Readings from 2 USGS gauges are posted above.

Can I launch a boat on the Napa River?

4 launches, such as Kennedy Park.

When was the Napa River last planted?

None on file.

Is the Napa River a wild trout water?

Nothing beyond the defaults.

Do I need a report card on the Napa River?

$64.54 resident, and a steelhead report card if you target them.

Where is bait sold near the Napa River?

The nearest listing is Big 5 Sporting Goods #122, 7 miles off.

Head for the Napa River

Buy the license online before the trip.