Home > IL > Whiteside County > Lyndon > Zip 61261

Zip Code 61261 — Lyndon, IL

61261 is a ZIP Code associated with Lyndon, IL, located within Whiteside. The postal region supports an estimated population of 656 residents across Data Pending housing units, with a population density of 15.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.729280, -89.911660)

Data MetricLocal Statistic
Postal / Zip Code61261
Primary CityLyndon
State / ProvinceIL
CountyWhiteside
Total Population656
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density15.3 people/sq mi
TimezoneAmerica/Chicago

How 61261 Compares

MetricZIP 61261Whiteside CountyIL State Average
Population65656,25012,694,745
Median IncomeData PendingN/AN/A
Population Density15.3 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 61270Morrison7.5 mi6,912N/A
Zip 61251Fenton8.3 mi377N/A
Zip 61277Prophetstown8.7 mi3,054N/A
Zip 61037Galt8.8 mi145N/A
Zip 61250Erie10.9 mi2,781N/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 →