New figures from the Central Statistics Office show that seven out of every ten private households (70.7%) had broadband access in 2016.
Leitrim had the lowest rate of access at 58% while Dún Laoghaire-Rathdown had the highest at 86%.
The figures are contained in the CSO's Regional Sustainable Development Goals Ireland release for 2017, which contains 70 indicators on regional life in Ireland.
The report – the third in the series – covers a set of global development targets adopted by the United Nations member countries in September 2015.
The figures also show that commuters from the Mid-East, Midlands and Dublin were more likely to leave for work by 7.30am.
About 39% of workers in the Mid-East and about 32% in the Midlands and Dublin started their journey to work by 7.30am compared to 26% of commuters in the Border region.
Among the diverse statistics included in today's release was the country's fertility rate, which stood at 1.81 in 2016. While this was below the replacement level of 2.1, it varied around the country.
The highest rates were 2.25 in Longford and 2.21 in both Cavan and Waterford County.
The four lowest fertility rates were all in city areas – Dublin City (1.46), Cork City (1.50), Galway City (1.60) and Waterford City (1.61).
Other figures in the SDG release included how people heated their homes, with peat (including turf) used for central heating by only 5.3% of Irish households.
However, it was used extensively in Offaly, with 37.9% of households burning peat to heat their homes, while the figure was 26.6% in Roscommon.