Dairy

Dairy is the cornerstone of NZ's primary sector, generating around $26 billion in export revenue annually — more than any other primary industry. The country produces approximately 21.7 million metric tons of milk per year, making it the world's 7th largest producer despite its small population.

The industry operates almost exclusively on pasture-based systems, with cattle feeding primarily on grass supplemented by silage and crops during winter. This model contrasts with the grain-fed systems dominant in the US and parts of Europe, and underpins NZ's positioning as a producer of "grass-fed" dairy.

Traditional dairying regions are in the wetter western and northern North Island, but irrigation has enabled significant expansion into Canterbury and Southland since the 1990s. Today, 70% of herds are in the North Island but 43% of all cows are in the South Island — reflecting larger average farm sizes in Canterbury and Southland.

The industry is dominated by farmer-owned cooperatives, with Fonterra processing around 77% of all milk produced nationally. Independent processors focus on specialty products and premium markets.

Farm profitability hinges on the farmgate milk price — the amount processors pay per kilogram of milk solids (kgMS). For 2024/25, Fonterra's forecast is $9.70-$10.30/kgMS, well above the breakeven price of ~$8.54/kgMS. This margin is allowing farmers to reinvest, reduce debt, and lift production.

NZ exports approximately 95% of dairy production, making the industry highly sensitive to global demand and currency movements. China remains the largest market at ~35% of export volume, though diversification into Southeast Asia and the Middle East is increasing.

Dairy faces significant environmental scrutiny over water quality, greenhouse gas emissions, and land use intensification. The industry has invested heavily in mitigation — 98% of dairy waterways are now fenced, 100% of farms are audited for effluent management — but nitrate contamination in groundwater remains a challenge, particularly in Canterbury and Southland.

On emissions, dairy cattle are the largest single source of agricultural methane. The previous government's plan to price farm emissions from 2025 was abandoned by the current coalition, which has revised methane reduction targets to 14-24% by 2050 (down from 24-47%).

The near-term outlook is positive: strong milk prices, lower interest rates, and reduced regulatory pressure are boosting farm confidence. Fonterra's $3.2B capital return to shareholders from the Lactalis sale will inject significant cash into rural communities.

Longer-term challenges include China's declining import demand, increasing competition from EU and US producers, and unresolved questions about environmental sustainability. The industry is betting on productivity gains and higher-value products rather than volume growth.