| Area of Barley, Queensland, '000 ha | ||||||||||||||
| Year | 1950 | 1951 | 1952 | 1953 | 1954 | 1955 | 1956 | 1957 | 1958 | 1959 | 1960 | 1961 | 1962 | 1963 |
| Area | 10 | 11 | 11 | 29 | 23 | 35 | 59 | 53 | 70 | 101 | 105 | 89 | 72 | 61 |
| Year | 1964 | 1965 | 1966 | 1967 | 1968 | 1969 | 1970 | 1971 | 1972 | 1973 | 1974 | 1975 | 1976 | 1977 |
| Area | 71 | 91 | 137 | 155 | 138 | 173 | 169 | 91 | 159 | 78 | 139 | 156 | 236 | 218 |
| Year | 1978 | 1979 | 1980 | 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1990 | 1991 |
| Area | 200 | 232 | 195 | 160 | 206 | 167 | 261 | 329 | 343 | 168 | 169 | 200 | 179 | 177 |
| Year | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 |
| Area | 128 | 189 | 232 | 93 | 168 | 180 | 135 | 163 | 130 | 112 | 96 | 108 | 151 | 97 |
| Year | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
| Area | 146 | 81 | 113 | 92 | 69 | 94 | 80 | 88 | 106 | 124 | 138 | 149 | 105 | 99 |
| Year | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | 2031 | 2032 | 2033 |
| Area | 80 | 227 | 207 | 139 | na | na | na | na | na | na | na | na | na | na |
| Source: | ABS | |||||||||||||