Also See Port Byron, IL: ZIP Codes & Maps
The Village of Port Byron had a population of 1,577 as of July 1, 2025.
The primary coordinate point for Port Byron is located at latitude 41.6064 and longitude -90.3354 in Rock Island County. The formal boundaries for the Village of Port Byron encompass a land area of 2.48 sq. miles and a water area of 0 sq. miles. Rock Island County is in the Central time zone (GMT -6).
The Village of Port Byron has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
The Village of Port Byron is located within Township of Port Byron, a minor civil division (MCD) of Rock Island County.
POPULATION | |
|---|---|
| Total Population | 1,577 (100%) | 
| Population in Households | 1,577 (100.0%) | 
| Population in Families | 1,353 (85.8%) | 
| Population in Group Quarters1 | 0 | 
| Population Density | 650 | 
| Diversity Index2 | 23 | 
INCOME | |
| Median Household Income | $110,826 | 
| Average Household Income | $138,688 | 
| % of Income for Mortgage4 | 17% | 
| Per Capita Income | $59,714 | 
| Wealth Index5 | 148 | 
| Socioeconomic Status Index6 | Moderate (58.9) | 
HOUSING | |
|---|---|
| Total HU (Housing Units) | 737 (100%) | 
| Owner Occupied HU | 572 (77.6%) | 
| Renter Occupied HU | 107 (14.5%) | 
| Vacant Housing Units | 58 ( 7.9%) | 
| Median Home Value | $303,145 | 
| Average Home Value | $314,003 | 
| Housing Affordability Index3 | 114 | 
HOUSEHOLDS | |
| Total Households | 679 | 
| Average Household Size | 2.32 | 
| Family Households | 474 | 
| Average Family Size | 3.00 | 
GROWTH RATE / YEAR | 
2020-2025 | 2025-2030 | 
|---|---|---|
| Population | -1.06% | -0.68% | 
| Households | -0.44% | -0.15% | 
| Families | 0.67% | |
| Median Household Income | 2.94% | |
| Per Capita Income | 2.92% | |
| Owner Occupied HU | 0.03% | 
The table below compares Port Byron to the other 1,461 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.
| Variable Description | Rank | Percentile | 
|---|---|---|
| Total Population | # 544 | 63rd | 
| Population Density | # 958 | 34th | 
| Median Household Income | # 183 | 88th | 
| Housing Affordability Index | # 563 | 39th | 
| Per Capita Income | # 124 | 92nd | 
| Diversity Index | # 690 | 53rd | 
Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.
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