Table:
municipality
total population of municipality
type of population

immigrant
second generation
population with an immigrant background

thousands
percentage

census metropolitan area of toronto
5,521.2
46.0
20.0
66.0

pickering
87.9
31.2
19.2
50.4

ajax
109.2
34.2
20.1
54.2

vaughan
286.3
46.4
27.0
73.4

markham
300.1
57.9
22.7
80.7

richmond hill
184.4
54.9
20.5
75.4

aurora
52.4
26.4
14.6
40.9

newmarket
78.9
23.8
13.8
37.6

georgina
42.9
10.9
8.4
19.3

toronto
2,576.0
48.6
19.4
68.0

mississauga
708.7
52.9
20.5
73.4

brampton
521.3
50.6
25.2
75.8

caledon
59.0
20.8
18.5
39.3

oakville
180.4
32.0
16.2
48.3

milton
83.6
29.6
17.3
46.8

halton hills
57.9
14.4
10.9
25.4

Statement: of the municipalities with a population of 40000 or greater, georigina and halton hills have a precentage of population with an immigrant background lower than 30%.
Question: list municipalities with a population of 40000 or greater that have a percentage of population with an immigrant background lower than 30%.
Answer: georgina, halton hills