Common carp · Cyprinus carpio

Common carp in the River Thames

Largest measured common carp: 78.8 cm

The largest common carp measured in Environment Agency surveys of the River Thames was 78.8 cm, recorded at Whitchurch (Weirpool) on 16 July 2004.

Across 91 measured common carp, the median measured length was 62.5 cm.

Surveyors recorded weights for 5 common carp. The median was 19 lb 4 oz (8.73 kg) and the largest recorded weight was 24 lb 0.8 oz (10.91 kg).

RiverFish uses Environment Agency survey measurements rather than rod-and-line angling records. These figures show fish measured during EA surveys of the River Thames.

See common carp records across England →

Most recent observation25 July 2025Hambleden - Hurley (margin) · 1 fish

Largest measured common carp: 78.8 cm
Median length: 62.5 cm
Fish measured: 91
Survey locations: 22

Individual EA measurements

Largest measured common carp

The largest individual measurements in this river and species dataset. Equal measurements are retained as separate surveyed fish.

Length	Survey date	Survey location	Survey ID
78.8 cm	16 Jul 2004	Whitchurch (Weirpool)	80517
76 cm	21 Jul 2022	Clifton Hampden - Days (Margin)	161281
75 cm	22 Jul 2025	Whitchurch to Mapledurham (Margin)	178497
73.7 cm	9 Jul 2016	Whitchurch to Mapledurham (Margin)	148435
73.6 cm	17 Jul 2002	Cleeve-Goring - (Margin)	65703
73.4 cm	18 Jul 2006	Cleeve - Goring (Weirpool)	100579
72.8 cm	10 Jul 2002	Days - Benson (Margin)	72265
72.5 cm	20 Jul 2005	Shiplake-marsh - (Margin)	85161
71.2 cm	19 Jul 2010	Goring to Whitchurch (Margin)	123130
71 cm	21 Jul 2022	Clifton Hampden - Days (Margin)	161281

Lengths are direct survey measurements. RiverFish does not estimate fish weights from length.

Explore the river

Where common carp were found

Each point marks a survey location with at least one common carp record.

Choose a point on the map to see what was recorded there.

Map points are approximate and don’t show fishing access. Check local permissions before visiting.

Place surveyed	First recorded	Last recorded	Visits finding common carp
Hambleden - Hurley (margin)	21 Jul 2005	25 Jul 2025	7
Whitchurch to Mapledurham (Margin)	18 Jul 2002	22 Jul 2025	4
Clifton Hampden - Days (Margin)	7 Jul 1994	13 Jul 2024	5
Sandford - Abingdon - (Margin)	3 Jul 2000	10 Jul 2024	5
Shiplake - Marsh (Weirpool)	18 Jul 2009	26 Jul 2022	2
Port Meadow (Day/Night)	15 Jul 2019	15 Jul 2019	1
Canal confluence to Marina	15 Jul 2019	15 Jul 2019	1
Culham - Clifton Hampden (Margin)	4 Jul 2000	5 Jul 2018	5
Culham Weirpool	15 Jul 2017	15 Jul 2017	1
Roundhouse to St Johns(margins)	24 Oct 2011	26 Sept 2016	2
Cleeve-Goring - (Margin)	17 Jul 2002	8 Jul 2013	7
Sandford Weir stream	2 Jul 2013	2 Jul 2013	1
Goring weir pool	28 Jul 2012	28 Jul 2012	1
Days - Benson (Margin)	6 Jul 2000	25 Jul 2012	5
Shiplake-marsh - (Margin)	24 Jul 2002	24 Jul 2011	5
Godstow to Osney	26 Sept 2005	8 Oct 2010	4
Goring to Whitchurch (Margin)	13 Jul 2009	19 Jul 2010	2
Hambleden - Hurley (Weirpool)	25 Jul 2008	25 Jul 2008	1
Whitchurch (Weirpool)	16 Jul 2003	21 Jul 2008	3
Cleeve - Goring (Weirpool)	15 Jul 2003	18 Jul 2006	2
Hambleden - Hurley (middle)	25 Jul 2002	25 Jul 2002	1
Whitchurch - Mapledurham (Middle)	18 Jul 2002	18 Jul 2002	1

Choose a point or table row to see the location. More survey visits can mean more records, but not necessarily more fish.

1994–2025

Survey records by year

Each bar shows how many survey visits recorded common carp that year.

194

095

096

097

098

099

300

001

602

303

404

305

206

407

408

709

410

311

412

413

114

015

216

117

118

219

020

021

322

023

224

225

Fish measured by surveyors

Measured length distribution

See how the 91 measured fish were spread across different length ranges.

Smallest: 12 cm
Lower quarter: 57.3 cm
Median: 62.5 cm
Upper quarter: 67.1 cm
Largest: 78.8 cm

100–199 mm

200–299 mm

300–399 mm

400–499 mm

500–599 mm

600–699 mm

700–799 mm

Lengths are direct survey measurements rather than anglers’ catches.

Fish weighed by surveyors

Measured weight summary

Recorded weights were available for 5 common carp. This is a subset of the measured fish and may not represent the whole population.

Lightest: 1 lb 10.8 oz (0.76 kg)
Lower quarter: 19 lb 1.2 oz (8.65 kg)
Median: 19 lb 4 oz (8.73 kg)
Upper quarter: 21 lb 4 oz (9.64 kg)
Heaviest: 24 lb 0.8 oz (10.91 kg)

These are direct individual weights recorded by Environment Agency surveyors. Combined bulk weights are not included.

More fish in this river

Explore the River Thames

Compare other species with enough survey and measurement data for a detailed page.

Roach Bleak Pike Chub Perch Dace

Before you fish

Good to know

These are past survey records, so the fish present today may be different. Map points are approximate—check local access, permissions and fishing rules before visiting.

Learn how RiverFish uses the data →