Home > IL > Rock Island County > Port Byron > Zip 61275

Zip Code 61275 — Port Byron, IL

61275 is a ZIP Code associated with Port Byron, IL, located within Rock Island. 61275 ranks #7 out of 17 ZIP codes in Rock Island County by population (and #508 out of 1,396 in IL). The area supports an estimated population of 4,253 residents across Data Pending housing units, with a population density of 49.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.600160, -90.297810)

Data MetricLocal Statistic
Postal / Zip Code61275
Primary CityPort Byron
State / ProvinceIL
CountyRock Island
Total Population4,253
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density49.4 people/sq mi
TimezoneAmerica/Chicago

How 61275 Compares

MetricZIP 61275Rock Island CountyIL State Average
Population4,253143,264 (Total)12,694,745 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density49.4 /sq mi----
County Pop Rank#7 of 17----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 61278Rapids City2.7 mi678N/A
Zip 61257Hillsdale3.9 mi844N/A
Zip 61256Hampton6.0 mi1,926N/A
Zip 61236Barstow6.8 mi34N/A
Zip 61242Cordova7.2 mi1,135N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →