| Sankt Martin im Sulmtal | |
|---|---|
|   View with parish church | |
| Coordinates: 46°45′00″N15°18′00″E / 46.75000°N 15.30000°E | |
| Country | Austria | 
| State | Styria | 
| District | Deutschlandsberg | 
| Government | |
| • Mayor | Franz Silly (ÖVP) | 
| Area | |
|  • Total | 39.16 km2 (15.12 sq mi) | 
| Elevation | 333 m (1,093 ft) | 
| Population  (2018-01-01) [2]  | |
|  • Total | 3,059 | 
| • Density | 78/km2 (200/sq mi) | 
| Time zone | UTC+1 (CET) | 
| • Summer (DST) | UTC+2 (CEST) | 
| Postal code | 8543, 8443, 8522, 8542, 8544, 8551 | 
| Area code | +43 3465, 3457 | 
| Vehicle registration | DL | 
| Website | www.st-martin-i-s.at | 
Sankt Martin im Sulmtal is a municipality in the district of Deutschlandsberg in the Austrian state of Styria.
| Year | Pop. | ±% | 
|---|---|---|
| 1869 | 2,969 | — | 
| 1880 | 3,056 | +2.9% | 
| 1890 | 3,116 | +2.0% | 
| 1900 | 3,016 | −3.2% | 
| 1910 | 2,903 | −3.7% | 
| 1923 | 3,175 | +9.4% | 
| 1934 | 3,209 | +1.1% | 
| 1939 | 2,958 | −7.8% | 
| 1951 | 3,404 | +15.1% | 
| 1961 | 3,267 | −4.0% | 
| 1971 | 3,331 | +2.0% | 
| 1981 | 3,303 | −0.8% | 
| 1991 | 3,492 | +5.7% | 
| 2001 | 3,488 | −0.1% | 
| 2011 | 3,155 | −9.5% | 
| 2015 | 3,049 | −3.4% |