When was Merrimack River last stocked?

The latest reported stocking was May 29, 2026 (brown trout, 600 fish), according to New Hampshire agency reports.

How often is Merrimack River stocked?

It was stocked 2 times in the last 12 months.

Is Merrimack River stocked often?

Number 11 of 42 stocked waters in Merrimack County by stocking days. Stocked about as often as a typical New Hampshire water on our record. We count each day the agency reported stocking it.

What kind of trout are stocked in Merrimack River?

Brown trout (2 stockings, 1,500 fish).

Merrimack River trout stocking

Concord, Merrimack County, New Hampshire · stream · 237 ft elevation

Merrimack River was last stocked 5 months ago (May 29, 2026). We have 2 stockings on record since Apr 24, 2026, 2 in the last 12 months (1,500 fish). Species stocked: brown trout.

Last stocked

5 months ago

May 29, 2026

Next planned

Not announced

Last 12 months

2 stockings

1,500 fish

On record

2 stockings

since Apr 24, 2026

Number 11 of 42 stocked waters in Merrimack County by stocking days.
Stocked about as often as a typical New Hampshire water on our record.

Weather at Merrimack River

Tonight
34°F
Mostly Clear
wind 5 to 10 mph
Saturday
51°F
Sunny
wind 5 to 10 mph
Saturday Night
24°F
Clear
wind 0 to 5 mph
Sunday
59°F
Sunny
wind 0 to 5 mph
Sunday Night
33°F
Mostly Clear
wind 0 mph
Monday
66°F
Sunny
wind 0 to 5 mph

Forecast from the National Weather Service for this location, refreshed hourly.

What is stocked

Species	Stockings	Fish	Fish per stocking
Brown trout	2	1,500	750

Stocking history

20262 stockings · 1,500 fish

Date	Species	Fish	Since previous	Hatchery
May 29Latest Friday	Brown trout	600 250 lb	5 weeks	Milford State Fish Hatchery
Apr 24 Friday	Brown trout	900 321 lb		Milford State Fish Hatchery

From New Hampshire fish and wildlife agency reports, collected nightly and kept after the agency takes them down. Agencies revise reports; check the agency's report before you go. Seasons and limits: New Hampshire fishing regulations.

Where is Merrimack River?

Concord, Merrimack County, New Hampshire. The marker is the agency's location for this water; streams are often stocked at several access points.

Directions Larger map New Hampshire fishing regulations

Stocked waters near Merrimack River

Hot Hole Pondlake · 3 mistocked Apr 28, 2026
Clough Pondlake · 5 mistocked May 15, 2026
Soucook Riverstream · 5 mistocked May 29, 2026
Blackwater Riverstream · 6 mistocked Apr 23, 2026
Blackwater Riverstream · 7 mistocked Apr 23, 2026
Soucook Riverstream · 7 mistocked May 20, 2026
Stirrup Iron Pondlake · 9 mistocked Jun 2, 2026
Winnepocket Lakelake · 9 mistocked Apr 22, 2026

All stocked waters in Merrimack County Stocked this week in New Hampshire

Questions about Merrimack River

When was Merrimack River last stocked?: The latest reported stocking was May 29, 2026 (brown trout, 600 fish), according to New Hampshire agency reports.
How often is Merrimack River stocked?: It was stocked 2 times in the last 12 months.
Is Merrimack River stocked often?: Number 11 of 42 stocked waters in Merrimack County by stocking days. Stocked about as often as a typical New Hampshire water on our record. We count each day the agency reported stocking it.
What kind of trout are stocked in Merrimack River?: Brown trout (2 stockings, 1,500 fish).