Home > IL > McDonough County > Blandinsville > Zip 61420

Zip Code 61420 — Blandinsville, IL

ZIP Code 61420 is associated with Blandinsville, IL, in McDonough County. The listed population estimate is 968; estimated density is 5.5 people per square mile. Among records with population estimates, it ranks #4 of 10 in McDonough County and #929 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (40.549100, -90.866790)

Data MetricLocal Statistic
Postal / Zip Code61420
Primary CityBlandinsville
State / ProvinceIL
CountyMcDonough
Total Population968
Population Density5.5 people/sq mi
TimezoneAmerica/Chicago

How 61420 Compares

MetricZIP 61420McDonough County recordsIL records
Population estimate96826,254 (sum)12,694,745 (sum)
Population Density5.5 /sq mi----
County population rank#4 of 10----
State population rank#929 of 1,390----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IL

ZIP CodeCityDistancePopulation estimate
ZIP 61450La Harpe6.3 mi1,812
ZIP 61475Sciota6.8 mi180
ZIP 62326Colchester9.2 mi2,236
ZIP 62374Tennessee10.0 mi216
ZIP 61471Raritan10.4 mi134

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 →