Labour force participation is calculated as the proportion of the civilian population aged 15 years and over who are either employed or unemployed and actively looking for work.
The data presented here is for the March Quarters of the years 2002 – 2011. It relates to the Southern Adelaide region, which comprises the City of Onkaparinga, plus the council areas of Holdfast Bay, Marion and Mitcham. Workforce participation data is not available at the Local Government level.
| March Quarters 2002 - 2011 | |||||
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2002 | Australia | 9,207,400 | 705,200 | 7.1% | 63.8% |
| South Australia | 684,500 | 54,400 | 7.4% | 60.7% | |
| Adelaide | 506,900 | 41,800 | 7.6% | 60.7% | |
| Southern Adelaide | 148,100 | 11,100 | 7.0% | 61.5% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2003 | Australia | 9,848,800 | 663,100 | 6.5% | 64.3% |
| South Australia | 707,700 | 49,100 | 6.5% | 61.6% | |
| Adelaide | 527,200 | 37,300 | 6.6% | 61.8% | |
| Southern Adelaide | 156,200 | 9,800 | 5.9% | 61.2% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2004 | Australia | 9,541,600 | 633,800 | 6.2% | 63.5% |
| South Australia | 714,100 | 53,300 | 6.9% | 61.7% | |
| Adelaide | 524,600 | 41,100 | 7.3% | 61.4% | |
| Southern Adelaide | 161,700 | 11,100 | 6.4% | 63.7% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2005 | Australia | 9,863,900 | 583,800 | 5.6% | 64.3% |
| South Australia | 732,500 | 45,400 | 5.8% | 62.0% | |
| Adelaide | 538,800 | 36,900 | 6.4% | 62.0% | |
| Southern Adelaide | 165,100 | 12,400 | 7.0% | 65.0% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2006 | Australia | 10,021,800 | 583,800 | 5.6% | 64.5% |
| South Australia | 741,600 | 44,300 | 5.6% | 62.2% | |
| Adelaide | 544,700 | 35,400 | 6.1% | 62.0% | |
| Southern Adelaide | 158,200 | 10,000 | 6.0% | 61.1% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2007 | Australia | 10,306,600 | 542,000 | 5.0% | 64.8% |
| South Australia | 747,300 | 46,400 | 5.8% | 62.1% | |
| Adelaide | 551,300 | 36,600 | 6.2% | 62.2% | |
| Southern Adelaide | 171,100 | 9,100 | 5.0% | 64.8% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2008 | Australia | 10,619,100 | 492,800 | 4.4% | 65.2% |
| South Australia | 774,400 | 40,200 | 4.9% | 63.0% | |
| Adelaide | 571,200 | 30,700 | 5.1% | 62.9% | |
| Southern Adelaide | 172,200 | 9,400 | 5.2% | 64.5% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2009 | Australia | 10,743,000 | 662,300 | 5.8% | 65.5% |
| South Australia | 786,800 | 53,300 | 6.3% | 63.6% | |
| Adelaide | 568,600 | 44,000 | 7.2% | 63.1% | |
| Southern Adelaide | 176,200 | 8,700 | 4.7% | 65.3% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2010 | Australia | 10,930,000 | 672,400 | 5.8% | 65.3% |
| South Australia | 802,600 | 44,900 | 5.3% | 63.4% | |
| Adelaide | 593,900 | 35,900 | 5.7% | 64.1% | |
| Southern Adelaide | 180,200 | 10,800 | 5.6% | 66.7% | |
| Year | Region | Employed | Unemployed | Unemployment Rate | Participation Rate |
| 2011 | Australia | 11,383,400 | 655,700 | 5.4% | 65.8% |
| South Australia | 812,700 | 52,200 | 6.0% | 63.5% | |
| Adelaide | 602,100 | 40,000 | 6.2% | 64.0% | |
| Southern Adelaide | 185,300 | 9,700 | 5.0% | 66.5% | |

Between the March quarters in 2002 and 2011 the number of unemployed persons in the Southern Adelaide region varied, from a high of 12,400 in 2005 to a low of 8,700 in 2009.

The unemployment rate was lower than the Adelaide Metropolitan area every year except 2005, when it was 0.6% higher and 2008, when it was 0.1% higher. The participation rate has been higher than Adelaide, with the exception of 2003, when it was 0.6% lower and 2006, when its was 0.9% lower.

| Source: | Department of Education, Employment and Workplace Relations, Labour Market Analysis, Australian Regional Labour Markets. Downloaded from www.deewr.gov.au on 10 June 2011. Based on ABS Labour Force Survey |
Youth unemployment rates are only available at the Southern Adelaide regional level, not specifically for the City of Onkaparinga.
| Region | February 2009 | February 2010 | February 2011 |
| Northern Adelaide | 29.8% | 24.0% | 27.7% |
| Western Adelaide | 26.1% | 33.8% | 32.6% |
| Eastern Adelaide | 27.5% | 22.0% | 25.0% |
| Southern Adelaide | 21.0% | 20.7% | 26.8% |
The Southern Adelaide region experienced a lower youth unemployment rate that the other three metropolitan regions, until recently. In February 2011 the rate increased to 26.8%, 1.8% more than Eastern Adelaide’s rate of 25.0%.
Between 2010 and 2011 the Southern Adelaide youth full time unemployment rate increased by 6.1%, substantially higher than any other metropolitan region.

|
Source: |
Department of Education, Employment and Workplace Relations, Labour Economics Office, Overview of SA Regional Labour Force Data. Downloaded from www.workplace.gov.au on 19 March 2010. Based on ABS Labour Force Survey |