The size of Kalpienung is approximately 130.2 square kilometres. The population of Kalpienung in 2011 was 337 people. By 2016 the population was 27 showing a population decline of 92.0% in the area during that time. The predominant age group in Kalpienung is 40-49 years. Households in Kalpienung are primarily couples with children and are likely to be repaying $800 - $999 per month on mortgage repayments. In general, people in Kalpienung work in a managers occupation. In 2006, 8.9% of the homes in Kalpienung were owner-occupied compared with 83.4% in 2011.