| | Ishpeming, MI | Two Harbors, MN | United States |
| Population | 6,223 | 3,616 | 329,725,481 |
| Female Population | 53.8% | 50.7% | 50.5% |
| Male Population | 46.2% | 49.3% | 49.5% |
| Median Age | 38.8 | 41.7 | 38.4 |
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| Population - 2010 | 6,476 | 3,739 | 309,327,143 |
| Population - 2000 | 6,686 | 3,613 | 285,036,114 |
| Population - 1990 | 7,200 | 3,651 | 251,960,433 |
| Pop. 2000 to Now | -4.6% | -2.9% | 15.6% |
| Pop. 1990 to Now | -11.4% | -3.9% | 30.8% |
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| Population Density | 711.4 | 1,104.8 | 93.4 |
| Land Area | 8.7 | 3.3 | 3,531,905.4 |
| Water Area | 0.6 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Ishpeming, MI | Two Harbors, MN | United States |
| Age 0 to 4 | 7.1% | 6.2% | 5.9% |
| Age 5 to 9 | 4.2% | 7.5% | 6.1% |
| Age 10 to 14 | 7.7% | 4.9% | 6.6% |
| Age 15 to 17 | 4.3% | 5.0% | 3.9% |
| Age 18 to 20 | 5.8% | 2.1% | 4.0% |
| Age 21 to 24 | 5.9% | 4.6% | 5.2% |
| Age 25 to 34 | 11.1% | 12.1% | 13.8% |
| Age 35 to 44 | 9.6% | 13.2% | 12.9% |
| Age 45 to 54 | 16.6% | 9.2% | 12.6% |
| Age 55 to 59 | 4.8% | 9.0% | 6.7% |
| Age 60 to 64 | 4.7% | 5.0% | 6.3% |
| Age 65 to 74 | 10.1% | 12.4% | 9.6% |
| Age 75 to 84 | 5.4% | 5.5% | 4.5% |
| Age 85 and over | 2.6% | 3.5% | 1.9% |
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| Race | | | |
| | Ishpeming, MI | Two Harbors, MN | United States |
| White | 92.4% | 93.4% | 59.4% |
| Black | 1.2% | 0.7% | 12.2% |
| Asian | 1.0% | 0.0% | 5.6% |
| Native American | 0.5% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.7% | 2.6% | 3.2% |
| Hispanic | 1.2% | 2.7% | 18.4% |
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| Marriage & Family | | | |
| | Ishpeming, MI | Two Harbors, MN | United States |
| Married Population | 45.7% | 51.4% | 49.8% |
| Currently Married | 44.4% | 49.2% | 48.0% |
| Married but Separated | 1.3% | 2.3% | 1.8% |
| Single Population | 54.3% | 48.6% | 50.2% |
| Never Married | 33.1% | 23.6% | 33.8% |
| Divorced | 14.5% | 11.8% | 10.8% |
| Widowed | 6.6% | 13.1% | 5.6% |
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| Household Size | 2.46 | 2.08 | 2.60 |
| Households | 2,479 | 1,673 | 124,010,992 |
| Family Households | 1,459 | 1,000 | 80,755,759 |
| Married couple, w/children | 31.3% | 33.0% | 30.5% |
| Married couple, no children | 41.0% | 36.2% | 42.9% |
| Non Family Households | 1,020 | 673 | 43,255,233 |
| Single householder, w/children | 20.2% | 19.8% | 15.8% |
| Single householder, no children | 7.6% | 11.0% | 10.8% |