Allendale is a CDP located in Solano County, California. Allendale has a 2025 population of 1,814 . Allendale is currently growing at a rate of 1.17% annually and its population has increased by 26.94% since the most recent census, which recorded a population of 1,429 in 2020.
The average household income in Allendale is $165,110 with a poverty rate of 8.67%. The median age in Allendale is 50.9 years: 39 years for males, and 55.1 years for females. For every 100 females there are 89.2 males.
Data after 2023 is projected based on recent change
The racial composition of Allendale includes 64.86% White, 8.46% other race, 5.64% Black or African American, 5.12% Asian, and smaller percentages for and multiracial populations.
White (64.86%)
Two or more races (15.93%)
Other race (8.46%)
Black or African American (5.64%)
Asian (5.12%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,242 | 64.86% |
| Two or more races | 305 | 15.93% |
| Other race | 162 | 8.46% |
| Black or African American | 108 | 5.64% |
| Asian | 98 | 5.12% |
Married
Widowed
Divorced
Separated
Never Married
Allendale's average per capita income is $87,539. Household income levels show a median of $110,284. The poverty rate stands at 8.67%.
Name | Median | Mean |
|---|---|---|
| Married Families | $235,217 | - |
| Families | $134,327 | $183,671 |
| Households | $110,284 | $165,110 |
| Non Families | - | $39,326 |
Average Income
Median Household Income
Poverty Rate