As of 2026 the population of Thorntonville is 531. The population is expected to shrink to 506 by 2031 - a growth rate of -0.96%.
The median age of Thorntonville residents is 43.
The diversity index of Thorntonville is 80.0, meaning that there is a 80% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.
The average household income in Thorntonville is $103,817 and projected to be $109,621 in 2031. Per capita income is $40,862, projected to be $44,628 in 2031. 1.88% of households – 10 – have an income of $200,000 or higher. Average net worth is $949,749 and the average disposable income is $82,777.
There are 251 housing units in Thorntonville; 183 are owner-occupied, 26 are rented, and 42 are vacant. The average home value is $198,169, with 43 homes built in 2010 or later, and 11 built in 1939 or earlier.
There are 9 businesses in Thorntonville, employing 40 workers and pulling from a labor force of 255 age 16 and above. 58 workers commute into Thorntonville from outside the county or state. Key industries for the area include:
194 residents both live and work in/around Thorntonville. The average travel time is 0.0 minutes. 18.04% people have a commute of less than 5 minutes while 10.82% commute 90 minutes or more each way. Of commuters, 209 drive alone, 46 carpool, and 0 take public transportation. 0 use other modes of transport such as motorcycle, bicycle, walking, etc. 0 residents work from home.
164 members of the workforce hold a high school diploma or GED. 20 have associates degrees, 27 have bachelor’s degrees, and 8 hold a graduate or professional degree.
Source: ESRI, 2026-09-09
