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ST. IGNATIUS VS.
MONMOUTH
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2025 Compare Cities People:
St. Ignatius, MT vs Monmouth, OR
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Highlights
- Monmouth is 0% more densely populated than St. Ignatius.
- People are 6.4% more likely to be married in Monmouth.
- The Median Age is 8.1 years younger in Monmouth.
St. Ignatius, MT
Monmouth, OR
United States
Population
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10,735
329,725,481
Female Population
51.4%
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50.5%
Male Population
48.7%
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49.5%
Median Age
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25
38.4
space3
Population - 2010
800
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309,327,143
Population - 2000
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7,741
285,036,114
Population - 1990
778
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251,960,433
Pop. 2000 to Now
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37.1%
15.6%
Pop. 1990 to Now
8.2%
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30.8%
space4
Population Density
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4,949.3
93.4
Land Area
0.5
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3,531,905.4
Water Area
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0.1
264,836.8
space
Est. Total Population By Age
St. Ignatius, MT
Monmouth, OR
United States
Age 0 to 4
8.1%
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5.9%
Age 5 to 9
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9.7%
6.1%
Age 10 to 14
8.1%
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6.6%
Age 15 to 17
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4.7%
3.9%
Age 18 to 20
4.7%
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4.0%
Age 21 to 24
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11.0%
5.2%
Age 25 to 34
10.6%
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13.8%
Age 35 to 44
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8.2%
12.9%
Age 45 to 54
8.7%
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12.6%
Age 55 to 59
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3.2%
6.7%
Age 60 to 64
5.5%
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6.3%
Age 65 to 74
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3.8%
9.6%
Age 75 to 84
4.6%
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4.5%
Age 85 and over
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0.7%
1.9%
space1
Race
St. Ignatius, MT
Monmouth, OR
United States
White
51.7%
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59.4%
Black
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2.0%
12.2%
Asian
0.0%
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5.6%
Native American
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1.5%
0.6%
Hawaiian, Pacific Islander
0.5%
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0.2%
Other
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0.0%
0.4%
Two or More Races
10.4%
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3.2%
Hispanic
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19.4%
18.4%
space2
Marriage & Family
St. Ignatius, MT
Monmouth, OR
United States
Married Population
36.3%
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49.8%
Currently Married
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36.3%
48.0%
Married but Separated
3.3%
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1.8%
Single Population
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61.4%
50.2%
Never Married
41.1%
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33.8%
Divorced
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11.1%
10.8%
Widowed
11.8%
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5.6%
space5
Household Size
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2.89
2.60
Households
293
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124,010,992
Family Households
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2,051
80,755,759
Married couple, w/children
29.1%
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30.5%
Married couple, no children
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32.7%
42.9%
Non Family Households
111
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43,255,233
Single householder, w/children
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13.3%
15.8%
Single householder, no children
16.5%
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10.8%
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Learn More About St. Ignatius, Montana
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