Year
|
Number
|
Source Note: Baulkham Hills Shire proclaimed in 1906, name changed in 2008
|
1828
|
1,658
|
Census 1828 B Hills, Castle Hill, F of M, Portland Head, LPH, Upper Nelson Districts
|
1841
|
2,055
|
Census 1841 Castle Hill, Field of Mars, Nelson, Maroota and Cornelia Land Parishes
|
1861
|
2,545
|
Census 1861 Castle Hill, Field of Mars (rural), Nelson, Maroota and Cornelia Parishes
|
1871
|
3,118
|
Census 1871 Castle Hill, Field of Mars (rural), Nelson, Maroota and Cornelia Parishes
|
1891
|
3,527
|
Census 1891 BH, CH, F of M, (all) Dural, Mud Island, Lower Portland Sub District
|
1901
|
2,981
|
Census 1901 BH, CH, F of M, Dural, Kellyville, Kenthurst, Rouse Hill, no Hawk River
|
1908
|
3,800
|
672 dwellings Statistical Register of NSW 1907
|
1911
|
3,483
|
Census 1911
|
1921
|
5,113
|
Census 1921
|
1933
|
8,075
|
Census 1933
|
1947
|
10,675
|
Census 1947
|
1949
|
16,000
|
'Australian Blue Book'
|
1954
|
15,620
|
Census 1954 (LGA Boundary change)
|
1955
|
16,500
|
BHSC Notice to Ratepayers
|
1956
|
18,150
|
BHSC Notice to Ratepayers
|
1958
|
19,850
|
BHSC Notice to Ratepayers
|
1960
|
21,000
|
BHSC Notice to Ratepayers
|
1961
|
23,610
|
BHSC Notice to Ratepayers
|
1961
|
23,643
|
Census 1961
|
1962
|
24,640
|
BHSC Notice to Ratepayers
|
1963
|
27,600
|
BHSC Notice to Ratepayers
|
1965
|
29,400
|
BHSC Notice to Ratepayers
|
1966
|
33,499
|
Census 1966
|
1966
|
33,504
|
BHSC Notice to Ratepayers
|
1967
|
38,529
|
BHSC Notice to Ratepayers
|
1968
|
43,500
|
BHSC Notice to Ratepayers
|
1969
|
46,900
|
BHSC Notice to Ratepayers
|
1970
|
52,000
|
BHSC Notice to Ratepayers
|
1971
|
57,373
|
Census 1971
|
1971
|
59,000
|
BHSC Notice to Ratepayers
|
1972
|
62,000
|
BHSC Notice to Ratepayers
|
1973
|
64,800
|
BHSC Notice to Ratepayers
|
1974
|
66,680
|
BHSC Notice to Ratepayers
|
1975
|
70,000
|
BHSC Notice to Ratepayers
|
1976
|
75,665
|
Census 1976
|
1978
|
80,000
|
BHSC Notice to Ratepayers
|
1979
|
85,000
|
BHSC Notice to Ratepayers
|
1980
|
90,000
|
BHSC Notice to Ratepayers
|
1981
|
93,068
|
Census 1981
|
1986
|
102,804
|
Census 1986
|
1988
|
102,000
|
BHSC Notice to Ratepayers
|
1991
|
114,032
|
Census 1991
|
1996
|
118,797
|
Census 1996
|
2000
|
131,000
|
BHSC 'Hills Shire Plan'
|
2001
|
139,404
|
Census 2001
|
2002
|
150,000
|
BHSC 'Hills Shire Plan'
|
2003
|
154,486
|
BHSC BizData June 2004
|
2004
|
157,854
|
BHSC BizData June 2005
|
2005
|
161,068
|
BHSC BizData June 2006
|
2006
|
165,931
|
Census 2006
|
2009
|
176,487
|
THSC
|
2011
|
169,872
|
Census 2011
|
2014
|
187,703
|
ERP June 2014
|
2016
|
162,539
|
profile.id.com
|
2017
|
166,412
|
profile.id.com
|
2018
|
172,473
|
economyid.com.au
|
2019
|
177,927
|
economyid.com.au
|
2020
|
183,791
|
economyid.com.au
|
2023 |
207,959 |
economyid.com.au |