The overall national pig heard saw a decrease of 155,153 last year compared to 2021, reflecting a decrease of 8.64% year-on-year, according to the National Pig Census.

The national herd stood at 1,640,141 pigs last year, across 1,541 active herds.

The results of the census were recently published by the Department of Agriculture, Food and the Marine.

Any person who keeps any pigs is legally required to conduct a census on their holding, at least annually, at a time determined by the Minister for Agriculture, Food and the Marine. The date chosen for the 2022 Pig Census was Sunday, October 23, 2022.

In October 2022, pig census forms issued to the 3,038 pig keepers registered with the department. Completed returns were received in respect of 2,712 holdings, representing a response rate of over 89%. 1,171 of the respondent holdings were not active.

An active herd is a herd that is currently populated, or which was reported to have been populated at some point in the immediate preceding 12 months.

The total number of pigs in 2022 breaks down as 135,652 breeding pigs, 1,503,538 fattening pigs and 951 non-production pigs.

The number of fattening pigs was 146,254 (8.86%) lower last year compared to the previous year, while the number of breeding pigs decreased by 8,941 (6.18%).

Only five counties saw increases in pig numbers year-on-year, namely Leitrim, Meath, Monaghan, Offaly, and Westmeath.

The average number of pigs kept per herd last year was 1,064, almost unchanged compared to 2021.

1,115 active herds, or some 72.35% of all herds, kept 20 or fewer pigs.

43 herds – 2.79% of the total – kept in excess of 10,000 pigs each. These herds together accounted for 702,006 pigs – or 42.08% of the total in the country.

96.23% of all pigs were accounted for by just 263 herds, each keeping more than 1,000 pigs.

53 other herds, which kept between 501 and 1,000 pigs, accounted for only 2.5% of the overall pig population, with 41,067 pigs between them.

1,444 pigs, accounting for just under 0.1% of the population, were accounted for by the 988 respondents to the survey who kept five or less pigs. Such herds represented some 64.11% of total active herd numbers.

As has been the case since 2016, Co. Cavan recorded the largest pig population with some 314,418 pigs, representing 19.17% of the total number.

Co. Cork again recorded the second highest population with 270,558 (16.5%), and Co. Tipperary recorded the third highest number with 170,604 (10.4%).

The smallest pig populations were recorded in counties Dublin (46), Galway (2,875), and Leitrim (3,518).

Co. Cork continued to record the largest number of active herds (228), accounting for 14.8% of the total number of herds. Counties Wexford and Tipperary were the next highest with 109 and 108 herds respectively.

The counties with the smallest numbers of active herds were Dublin (20), Louth (21), and Leitrim (22).

The full county-by-county breakdown is as follows:

CountiesActive herdsBreeding pigsFattening pigsNon-production pigsTotal pigs
Carlow352,03441,2001443,248
Cavan9927,134287,25529314,418
Clare391,5334,652386,223
Cork22819,537250,92596270,558
Donegal803,46548,8455052,360
Dublin2010171946
Galway77662,7021072,875
Kerry563,27033,5852036,875
Kildare482,22324,1582426,405
Kilkenny564,42044,3883048,838
Laois533,58939,8118443,484
Leitrim22683,429213,518
Limerick363,99546,0491050,054
Longford335,27471,4481776,739
Louth2121810,226310,447
Mayo491,23117,4484719,061
Meath787,47036,5774744,094
Monaghan322,68034,3761937,075
Offaly308,40676,8821385,301
Roscommon281,53520,1072221,664
Sligo237076,830277,564
Tipperary10811,334159,24327170,604
Waterford546,92697,32847104,301
Westmeath575,40392,4562197,880
Wexford10912,70348,6226861,393
Wicklow704214,644515,116
Total1,541135,6521,503,5389511,640,141