Port Byron, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Port Byron, Illinois had a total population of 1,854, the 527th largest village in Illinois, with a median household income of $111,667, which is 34% higher than the state average. The poverty rate is 7.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 34% above the state average — one of the wealthiest communities in Illinois.
- Housing is very affordable with a home-value-to-income ratio of just 2.5x.
Port Byron Quick Facts
How Port Byron Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 1,959 | 1,854 | -5.4% |
| Median household income | $101,250 | $111,667 | +10.3% |
| Median home value | $259,300 | $278,200 | +7.3% |
How Port Byron Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Port Byron Rankings in Illinois
Explore Illinois Rankings
Other Cities in Rock Island County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Moline | 42,197 | $67,701 | 15.5% | $146,300 |
| Rock Island | 36,151 | $59,041 | 21.0% | $125,900 |
| East Moline | 20,904 | $61,779 | 19.8% | $134,600 |
| Silvis | 7,955 | $62,375 | 15.4% | $161,600 |
| Milan | 5,034 | $62,597 | 12.3% | $119,300 |
| Coal Valley | 4,229 | $106,850 | 3.9% | $215,700 |
| Carbon Cliff | 2,151 | $55,536 | 19.1% | $134,600 |
| Hampton | 1,926 | $90,406 | 4.7% | $184,900 |
| Andalusia | 1,021 | $77,222 | 4.8% | $168,000 |
| Rapids City | 980 | $83,125 | 3.3% | $203,700 |
Cities Similar to Port Byron
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Hudson | 1,918 | $110,000 | $224,700 | 44.0% | 2.4% |
| St. Jacob | 1,759 | $112,188 | $201,000 | 34.2% | 3.0% |
| Forest Lake | 1,865 | $96,250 | $346,400 | 48.3% | 4.0% |
| Teutopolis | 1,729 | $115,938 | $247,700 | 40.4% | 2.8% |
| The Galena Territory | 1,735 | $117,548 | $324,700 | 56.5% | 2.5% |
Population Overview
Port Byron is a small community located in Illinois, within Rock Island County. The total population is 1,854. It ranks as the 527th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Port Byron is 41.6 years. This is 7% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Port Byron is $111,667. This is 34% higher than the state median of $83,390. It is also 38% higher than the national median of $80,734. The poverty rate stands at 7.3%. This is 38% lower than the state poverty rate of 11.8%. The unemployment rate is 2.9%. This is 51% lower than the state rate of 5.8%. The median home value is $278,200. Housing costs are 6% higher than the state median of $263,300. With a home-value-to-income ratio of just 2.5x, Port Byron is one of the most affordable housing markets in the area. 84.4% of occupied housing units are owner-occupied. This homeownership rate is 26% higher than the state average of 67.1%.
Race & Ethnicity
Port Byron has a predominantly White (non-Hispanic) population, comprising 89.9% of all residents. Hispanic or Latino residents account for 8.1%. The White (non-Hispanic) population is significantly higher than the state average (89.9% vs 58.1%). The Hispanic or Latino population (8.1%) is well below the state average of 18.8%.
Education
36.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 3% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.2%.
Data Sources & Methodology
All demographic data for Port Byron, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Port Byron, Illinois?
Port Byron, Illinois has a population of 1,854 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Port Byron, IL?
The median household income in Port Byron is $111,667, which is 38% higher than the national median of $80,734.
What is the poverty rate in Port Byron, IL?
The poverty rate in Port Byron is 7.3%. This means approximately 134 residents live below the federal poverty line.
What is the racial makeup of Port Byron, Illinois?
Port Byron's population is 89.9% White, 0.0% Black, 8.1% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Port Byron, IL?
The median home value in Port Byron is $278,200. The home-value-to-income ratio is 2.5x.
How educated is Port Byron, Illinois?
36.9% of adults (25+) in Port Byron hold a bachelor's degree or higher, and 12.0% hold a graduate or professional degree.