Monmouth County's estimated 2026 population is 652,678 with a growth rate of 0.4% in the past year according to the most recent United States census data. Monmouth County is the 6th largest county in New Jersey. The 2010 population was 630,454 and has seen a growth of 3.53% since that time.
Data after 2023 is projected based on recent change
The racial composition of Monmouth County includes 76.18% White, 6.2% Black or African American, 5.3% Asian, 4.19% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (76.18%)
Two or more races (7.6%)
Black or African American (6.2%)
Asian (5.3%)
Other race (4.19%)
Native American (0.49%)
Native Hawaiian or Pacific Islander (0.05%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 490,314 | 76.18% |
| Two or more races | 48,910 | 7.6% |
| Black or African American | 39,890 | 6.2% |
| Asian | 34,095 | 5.3% |
| Other race | 26,954 | 4.19% |
| Native American | 3,139 | 0.49% |
| Native Hawaiian or Pacific Islander | 313 | 0.05% |
Married
Widowed
Divorced
Separated
Never Married
Monmouth County's average per capita income is $72,159. Household income levels show a median of $122,727. The poverty rate stands at 6.43%.
Name | Median | Mean |
|---|---|---|
| Married Families | $173,831 | $220,651 |
| Families | $155,779 | $199,828 |
| Households | $122,727 | $168,016 |
| Non Families | $61,598 | $95,746 |
Average Income
Median Household Income
Poverty Rate