| | Plymouth, ME | Albert Lea, MN | United States |
| Population | 1,164 | 18,433 | 329,725,481 |
| Female Population | 48.1% | 52.2% | 50.5% |
| Male Population | 51.9% | 47.8% | 49.5% |
| Median Age | 43.3 | 43.6 | 38.4 |
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| Population - 2010 | 1,359 | 18,207 | 309,327,143 |
| Population - 2000 | 1,257 | 18,356 | 285,036,114 |
| Population - 1990 | 1,152 | 18,310 | 251,960,433 |
| Pop. 2000 to Now | 7.9% | -3.4% | 15.6% |
| Pop. 1990 to Now | 17.7% | -3.2% | 30.8% |
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| Population Density | 39.2 | 1,399.9 | 93.4 |
| Land Area | 29.7 | 13.2 | 3,531,905.4 |
| Water Area | 1.3 | 1.9 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Plymouth, ME | Albert Lea, MN | United States |
| Age 0 to 4 | 3.9% | 5.3% | 5.9% |
| Age 5 to 9 | 9.3% | 6.9% | 6.1% |
| Age 10 to 14 | 7.4% | 6.6% | 6.6% |
| Age 15 to 17 | 3.4% | 3.6% | 3.9% |
| Age 18 to 20 | 1.5% | 2.7% | 4.0% |
| Age 21 to 24 | 1.5% | 3.7% | 5.2% |
| Age 25 to 34 | 13.4% | 11.8% | 13.8% |
| Age 35 to 44 | 11.5% | 10.5% | 12.9% |
| Age 45 to 54 | 14.2% | 11.8% | 12.6% |
| Age 55 to 59 | 8.1% | 6.2% | 6.7% |
| Age 60 to 64 | 5.9% | 7.2% | 6.3% |
| Age 65 to 74 | 15.1% | 11.2% | 9.6% |
| Age 75 to 84 | 3.4% | 7.7% | 4.5% |
| Age 85 and over | 1.5% | 4.6% | 1.9% |
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| Race | | | |
| | Plymouth, ME | Albert Lea, MN | United States |
| White | 93.6% | 77.6% | 59.4% |
| Black | 1.2% | 1.6% | 12.2% |
| Asian | 0.0% | 4.1% | 5.6% |
| Native American | 4.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.9% | 1.4% | 3.2% |
| Hispanic | 0.3% | 15.1% | 18.4% |
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| Marriage & Family | | | |
| | Plymouth, ME | Albert Lea, MN | United States |
| Married Population | 61.3% | 47.4% | 49.8% |
| Currently Married | 58.6% | 45.8% | 48.0% |
| Married but Separated | 2.7% | 1.6% | 1.8% |
| Single Population | 38.7% | 52.6% | 50.2% |
| Never Married | 22.6% | 30.7% | 33.8% |
| Divorced | 10.3% | 12.2% | 10.8% |
| Widowed | 5.8% | 9.7% | 5.6% |
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| Household Size | 2.51 | 2.28 | 2.60 |
| Households | 462 | 7,876 | 124,010,992 |
| Family Households | 334 | 4,642 | 80,755,759 |
| Married couple, w/children | 28.1% | 23.7% | 30.5% |
| Married couple, no children | 47.0% | 46.2% | 42.9% |
| Non Family Households | 128 | 3,234 | 43,255,233 |
| Single householder, w/children | 13.2% | 24.9% | 15.8% |
| Single householder, no children | 11.7% | 5.1% | 10.8% |