| | Spring Valley, WI | Barron, WI | United States |
| Population | 1,358 | 3,641 | 329,725,481 |
| Female Population | 49.3% | 56.1% | 50.5% |
| Male Population | 50.7% | 43.9% | 49.5% |
| Median Age | 39.2 | 35.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,345 | 3,447 | 309,327,143 |
| Population - 2000 | 1,189 | 3,248 | 285,036,114 |
| Population - 1990 | 1,051 | 2,986 | 251,960,433 |
| Pop. 2000 to Now | 11.3% | -0.4% | 15.6% |
| Pop. 1990 to Now | 25.9% | 8.3% | 30.8% |
| space4 | | | |
| Population Density | 337.9 | 1,249.1 | 93.4 |
| Land Area | 4.0 | 2.9 | 3,531,905.4 |
| Water Area | 0.4 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Spring Valley, WI | Barron, WI | United States |
| Age 0 to 4 | 4.5% | 4.6% | 5.9% |
| Age 5 to 9 | 8.2% | 14.1% | 6.1% |
| Age 10 to 14 | 7.0% | 5.5% | 6.6% |
| Age 15 to 17 | 3.8% | 3.8% | 3.9% |
| Age 18 to 20 | 1.6% | 4.3% | 4.0% |
| Age 21 to 24 | 2.9% | 4.7% | 5.2% |
| Age 25 to 34 | 12.2% | 12.8% | 13.8% |
| Age 35 to 44 | 14.6% | 9.5% | 12.9% |
| Age 45 to 54 | 13.0% | 7.9% | 12.6% |
| Age 55 to 59 | 6.0% | 6.6% | 6.7% |
| Age 60 to 64 | 8.2% | 4.3% | 6.3% |
| Age 65 to 74 | 10.3% | 13.1% | 9.6% |
| Age 75 to 84 | 3.7% | 6.4% | 4.5% |
| Age 85 and over | 3.9% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Spring Valley, WI | Barron, WI | United States |
| White | 94.0% | 73.0% | 59.4% |
| Black | 0.0% | 14.0% | 12.2% |
| Asian | 2.6% | 1.7% | 5.6% |
| Native American | 0.0% | 1.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.7% | 2.2% | 3.2% |
| Hispanic | 0.7% | 7.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Spring Valley, WI | Barron, WI | United States |
| Married Population | 46.0% | 45.0% | 49.8% |
| Currently Married | 45.6% | 40.7% | 48.0% |
| Married but Separated | 0.4% | 4.3% | 1.8% |
| Single Population | 54.0% | 55.0% | 50.2% |
| Never Married | 22.3% | 31.1% | 33.8% |
| Divorced | 23.7% | 17.3% | 10.8% |
| Widowed | 8.1% | 6.7% | 5.6% |
| space5 | | | |
| Household Size | 2.19 | 2.54 | 2.60 |
| Households | 606 | 1,359 | 124,010,992 |
| Family Households | 346 | 964 | 80,755,759 |
| Married couple, w/children | 29.5% | 15.4% | 30.5% |
| Married couple, no children | 43.6% | 35.0% | 42.9% |
| Non Family Households | 260 | 395 | 43,255,233 |
| Single householder, w/children | 16.5% | 32.5% | 15.8% |
| Single householder, no children | 10.4% | 17.2% | 10.8% |