Hidalgo is a village in Jasper County, Illinois, United States.

Illinois Route 130 passes through the east side of the village, leading north 7 miles (11 km) to Greenup and south 12 miles (19 km) to Newton, the Jasper county seat.

According to the 2021 census gazetteer files, Hidalgo has a total area of 0.34 square miles (0.88 km2), all land.

There were 53 housing units at an average density of 154.07 per square mile (59.49/km2).

36.96% of all households were made up of individuals, and 23.91% had someone living alone who was 65 years of age or older.