Waltham township is located in LaSalle County, Illinois. Waltham township has a 2026 population of 416. Waltham township is currently declining at a rate of 0% annually and its population has decreased by -0.95% since the most recent census, which recorded a population of 420 in 2020.
The median household income in Waltham township is $82,917 with a poverty rate of 2.92%. The median age in Waltham township is 43.3 years: 39.9 years for males, and 43.5 years for females. For every 100 females there are 64.8 males.
Data after 2023 is projected based on recent change
The racial composition of Waltham township includes 94.78% White, and smaller percentages for and multiracial populations.
White (94.78%)
Two or more races (5.22%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 617 | 94.78% |
| Two or more races | 34 | 5.22% |
Married
Widowed
Divorced
Separated
Never Married
Waltham township's average per capita income is $40,536. Household income levels show a median of $82,917. The poverty rate stands at 2.92%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,982 | - |
| Families | $89,167 | $105,621 |
| Households | $82,917 | $93,059 |
| Non Families | $66,250 | $62,911 |
Average Income
Median Household Income
Poverty Rate