New figures from the Central Statistics Office show that the median annual household disposable income was €43,101 last year.
The CSO's Survey on Income and Living Conditions (SILC) is the official source of data on household and individual income.
The survey for 2020 reveals that household disposable income rose as the highest level of education attained by the head of household increased.
Where the head of household had an educational attainment of primary level or below, the median household disposable income was €24,196, compared with €59,525 for those with a third level degree or above.
Today's CSO survey also gives an insight into poverty in Ireland. The at risk of poverty rate is the share of persons whose income is less than 60% of the national median equivalised.
The rate was 13.2% in 2020, the CSO said, unchanged from 2019.
The CSO said those most at risk of poverty during the year were individuals who were unable to work due to long-standing health problems (almost 34%) and those who were unemployed (32%).
This compares with a rate of just over 6% for those who described their principal economic status as employed.
In 2020, the at risk of poverty rate for those living in rented accommodation was almost 28%. If rent payments were deducted from income, this rate would have been almost 45%.
The CSO noted that almost one in 10 people went without heating due to financial circumstances in the previous year.
