Shoppers buy groceries at a supermarket in Seoul, Friday. Yonhap

Korea's average household income rose 2.4 percent from a year earlier in the first quarter, driven by an increase in wages and a rise in the number of pensioners, government data showed Thursday.

The average monthly income of households came to 5.48 million won ($3,649) in the January-March period, according to data from the Ministry of Data and Statistics.

Considering inflation, the household income rose 0.4 percent on-year in the first quarter.

Income earned through wages edged up 0.3 percent in the cited period to an average of 3.42 million won per month, due mainly to a rise in salaries among employees.