Helfenberg
Template:Infobox Ort in Österreich Helfenberg is a municipality in the district of Rohrbach in the Austrian state of Upper Austria.
Population
| Year | Pop. | ±% |
|---|---|---|
| 1869 | 1,270 | — |
| 1880 | 1,171 | −7.8% |
| 1890 | 1,091 | −6.8% |
| 1900 | 1,118 | +2.5% |
| 1910 | 1,009 | −9.7% |
| 1923 | 1,006 | −0.3% |
| 1934 | 1,154 | +14.7% |
| 1939 | 1,112 | −3.6% |
| 1951 | 1,125 | +1.2% |
| 1961 | 1,143 | +1.6% |
| 1971 | 1,194 | +4.5% |
| 1981 | 1,141 | −4.4% |
| 1991 | 1,116 | −2.2% |
| 2001 | 1,053 | −5.6% |
| 2011 | 961 | −8.7% |
References
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