Port Byron is located in Rock Island County, Illinois. Port Byron has a 2025 population of 1,374 . Port Byron is currently growing at a rate of 0.44% annually but its population has decreased by -1.15% since the most recent census, which recorded a population of 1,390 in 2020.
The average household income in Port Byron is $94,925 with a poverty rate of 11.28%. The median age in Port Byron is 49.6 years: 48.5 years for males, and 51.3 years for females. For every 100 females there are 117.4 males.
Data after 2023 is projected based on recent change
The racial composition of Port Byron includes 91.35% White, and smaller percentages for Black or African American, other race and multiracial populations.
White (91.35%)
Two or more races (6.56%)
Black or African American (1.44%)
Other race (0.65%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 1,267 | 91.35% |
| Two or more races | 91 | 6.56% |
| Black or African American | 20 | 1.44% |
| Other race | 9 | 0.65% |
Married
Widowed
Divorced
Separated
Never Married
Port Byron's average per capita income is $55,357. Household income levels show a median of $81,354. The poverty rate stands at 11.28%.
Name | Median | Mean |
|---|---|---|
| Married Families | $104,792 | - |
| Families | $101,417 | $112,310 |
| Households | $81,354 | $94,925 |
| Non Families | $40,000 | $65,660 |
Average Income
Median Household Income
Poverty Rate