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Population Estimates since 1900

Montgomery County, Maryland

Year
Estimated Population
Change
2009
957,200
8,500
2008
948,700
8,600
2007
940,100
3,600
2006
936,500
7,422
2005
929,078
10,516
2004
918,562
12,932
2003
905,630
13,841
2002
891,789
10,935
2001
880,854
11,354
2000*
869,500
14,500
1999
855,000
13,500
1998
841,500
14,300
1997
827,200
13,100
1996
814,100
9,500
1995
804,600
8,700
1994
795,900
9,700
1993
786,200
11,100
1992
775,100
10,500
1991
764,600
7,573
1990*
757,027
22,027
1989
735,000
25,000
1988
710,000
30,000
1987
680,000
35,000
1986
645,000
17,000
1985
628,000
24,000
1984
604,000
14,000
1983
590,000
3,500
1982
586,500
4,000
1981
582,500
3,447
1980*
579,053
753
1979
578,300
-800
1978
579,100
-2,000
1977
581,100
-4,700
1976
585,800
-3,600
1975
589,400
9,800
1974
579,600
18,500
1973
561,100
16,200
1972
544,900
14,000
1971
530,900
8,091
1970*
522,809
181,881
1960*
340,928
176,527
1950*
164,401
80,489
1940*
83,912
34,706
1930*
49,206
14,285
1920*
34,921
2,832
1910*
32,089
1,638
1900*
30,451
n/a
SOURCE: M-NCPPC Research & Technology Center; U.S. Census (years marked with *)Updated November, 2009.
NOTE: U.S. Census data are for April 1 and M-NCPPC estimates are for January 1 of the reported year.

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