Home > IL > Johnson County > Grantsburg > Zip 62943

Zip Code 62943 — Grantsburg, IL

ZIP Code 62943 is associated with Grantsburg, IL, in Johnson County. The listed population estimate is 428; estimated density is 4.4 people per square mile. Among records with population estimates, it ranks #6 of 7 in Johnson County and #1141 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (37.355860, -88.746690)

Data MetricLocal Statistic
Postal / Zip Code62943
Primary CityGrantsburg
State / ProvinceIL
CountyJohnson
Total Population428
Population Density4.4 people/sq mi
TimezoneAmerica/Chicago

How 62943 Compares

MetricZIP 62943Johnson County recordsIL records
Population estimate42813,046 (sum)12,694,745 (sum)
Population Density4.4 /sq mi----
County population rank#6 of 7----
State population rank#1141 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 62908Belknap7.3 mi440
ZIP 62985Simpson8.3 mi1,128
ZIP 62995Vienna8.7 mi6,339
ZIP 62960Metropolis9.2 mi10,783
ZIP 62938Golconda11.1 mi2,622

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 →