As of 2026 the population of Harper County is 5,373. The population is expected to shrink to 5,311 by 2031 - a growth rate of -0.23%.
The median age of Harper County residents is 44.
The diversity index of Harper County is 36.2, meaning that there is a 36% 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 Harper County is $81,053 and projected to be $90,673 in 2031. Per capita income is $35,415, projected to be $39,907 in 2031. 2.98% of households – 160 – have an income of $200,000 or higher. Average net worth is $893,084 and the average disposable income is $63,072.
There are 3,043 housing units in Harper County; 1,716 are owner-occupied, 618 are rented, and 709 are vacant. The average home value is $128,142, with 155 homes built in 2010 or later, and 842 built in 1939 or earlier.
There are 342 businesses in Harper County, employing 2,132 workers and pulling from a labor force of 2,253 age 16 and above. 407 workers commute into Harper County from outside the county or state. Key industries for the area include:
1,827 residents both live and work in/around Harper County. The average travel time is 16.3 minutes. 26.27% people have a commute of less than 5 minutes while 2.9% commute 90 minutes or more each way. Of commuters, 1,739 drive alone, 220 carpool, and 12 take public transportation. 169 use other modes of transport such as motorcycle, bicycle, walking, etc. 113 residents work from home.
1,458 members of the workforce hold a high school diploma or GED. 249 have associates degrees, 656 have bachelor’s degrees, and 218 hold a graduate or professional degree.
Source: ESRI, 2026-09-09
