Herald election forecast predicts a parliament at the mercy of Winston Peters.

Herald Insights gives our readers the ability to dig deep into data that matters to New Zealanders.

The interactive visualisation shows where the government money is spent. Readers can see the data by department and functional classification.

Rich Kiwis are turning their backs on God but churches shouldn't waste energy on being “up to date”, expert claims. Our interactive shows religious your suburb is.

The Herald has produced a special interactive that allows readers to compare their favourite players against every cricketer to have played at least 20 ODIs.

EXPLORE OUR INTERACTIVE: More migrants from Asia are using the student and worker migration policy as a path to secure permanent residence, a report says.

The New Zealand Herald hosted the Open Data Day on Saturday, as part of the international event held in various countries.

Explore how median weekly rent has changed in your suburb since 2001 using our new interactive map.

An interactive map reveals the change in commuting patterns in New Zealand since 2001.

It's ten years today since smoking was banned in bars, but Maori are still more likely to smoke than Europeans. We map where the ethnic smoking gap lies.

The new deciles released yesterday are at the heart of the New Zealand education system, but what do they actually mean in terms of funding?

Parents tell their views on school choice after we reveal the number of Pakeha children in schools in poorer communities has halved since mid-1990s.

As New Zealand schools await for another decile review post 2013 census - we explore different data sets related to the decile system.

Today we're starting the New Zealand Herald data blog. In our first post we can reveal that broadband remains unaffordable for many rural New Zealanders.

How did the country vote in the 2014 General Election? You can explore results for every electorate, every candidate and every polling booth in this interactive.

Where was every All Black born? This Herald interactive graphic details the birth place of every Kiwi to have worn the silver fern.

A data visualisation of where the Budget money is going.

Changing the geography of poverty within NZ will take generations, according to health policy researchers. So which areas of the country are the most deprived?

A Herald analysis shows students do far better under internal assessment, away from the pressure of tests

The South Island has had bigger median income gains than the North over the past seven years, Census figures show.

Personal income has fallen dramatically in South Auckland compared to more affluent Auckland areas, according to the latest Census data.

How the new electorates will look when overlaid with 2011 polling place data? A Heralddata investigation includes this interactive graphic.