| Sankt Oswald bei Plankenwarth | |
|---|---|
| Sankt Oswald parish church and cemetery | |
|   Location within Graz-Umgebung district | |
| Coordinates: 47°04′47″N15°16′47″E / 47.07972°N 15.27972°E | |
| Country | Austria | 
| State | Styria | 
| District | Graz-Umgebung | 
| Government | |
| • Mayor | Andreas Staude (SPÖ) | 
| Area | |
|  • Total | 11.75 km2 (4.54 sq mi) | 
| Elevation | 557 m (1,827 ft) | 
| Population  (2018-01-01) [2]  | |
|  • Total | 1,244 | 
| • Density | 110/km2 (270/sq mi) | 
| Time zone | UTC+1 (CET) | 
| • Summer (DST) | UTC+2 (CEST) | 
| Postal code | 8113 | 
| Area code | 03123 | 
| Vehicle registration | GU | 
| Website | www.sanktoswald.net | 
Sankt Oswald bei Plankenwarth is a municipality in the district of Graz-Umgebung in the Austrian state of Styria. It has a population of around 1,300 residents. Key landmarks of this region are the Pfarrkirche St. Oswald, a Roman Catholic parish church perched on a hill, and the Schloss Plankenwarth. [3]
| Year | Pop. | ±% | 
|---|---|---|
| 1869 | 770 | — | 
| 1880 | 800 | +3.9% | 
| 1890 | 797 | −0.4% | 
| 1900 | 762 | −4.4% | 
| 1910 | 792 | +3.9% | 
| 1923 | 802 | +1.3% | 
| 1934 | 769 | −4.1% | 
| 1939 | 700 | −9.0% | 
| 1951 | 777 | +11.0% | 
| 1961 | 761 | −2.1% | 
| 1971 | 754 | −0.9% | 
| 1981 | 850 | +12.7% | 
| 1991 | 1,006 | +18.4% | 
| 2001 | 1,135 | +12.8% |