Home > IL > Crawford County > Flat Rock > Zip 62427

Zip Code 62427 — Flat Rock, IL

ZIP Code 62427 is associated with Flat Rock, IL, in Crawford County. The listed population estimate is 1,730; estimated density is 7.9 people per square mile. Among records with population estimates, it ranks #4 of 7 in Crawford County and #717 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.873010, -87.658910)

Data MetricLocal Statistic
Postal / Zip Code62427
Primary CityFlat Rock
State / ProvinceIL
CountyCrawford
Total Population1,730
Population Density7.9 people/sq mi
TimezoneAmerica/Chicago

How 62427 Compares

MetricZIP 62427Crawford County recordsIL records
Population estimate1,73018,763 (sum)12,694,745 (sum)
Population Density7.9 /sq mi----
County population rank#4 of 7----
State population rank#717 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 62439Lawrenceville8.8 mi7,033
ZIP 62451Palestine8.8 mi2,055
ZIP 62454Robinson10.1 mi10,477
ZIP 62464Stoy12.4 mi81
ZIP 62417Bridgeport13.1 mi2,848

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 →