As of 2026 the population of Decatur County is 2,702. The population is expected to shrink to 2,665 by 2031 - a growth rate of -0.28%.
The median age of Decatur County residents is 52.
The diversity index of Decatur County is 24.6, meaning that there is a 25% 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 Decatur County is $83,231 and projected to be $93,237 in 2031. Per capita income is $38,992, projected to be $43,572 in 2031. 2.7% of households – 73 – have an income of $200,000 or higher. Average net worth is $737,372 and the average disposable income is $65,549.
There are 1,623 housing units in Decatur County; 1,001 are owner-occupied, 260 are rented, and 362 are vacant. The average home value is $122,902, with 20 homes built in 2010 or later, and 547 built in 1939 or earlier.
There are 214 businesses in Decatur County, employing 1,130 workers and pulling from a labor force of 1,270 age 16 and above. 299 workers commute into Decatur County from outside the county or state. Key industries for the area include:
843 residents both live and work in/around Decatur County. The average travel time is 0.0 minutes. 35.23% people have a commute of less than 5 minutes while 2.02% commute 90 minutes or more each way. Of commuters, 897 drive alone, 85 carpool, and 46 take public transportation. 48 use other modes of transport such as motorcycle, bicycle, walking, etc. 194 residents work from home.
575 members of the workforce hold a high school diploma or GED. 233 have associates degrees, 424 have bachelor’s degrees, and 141 hold a graduate or professional degree.
Source: ESRI, 2026-09-09
