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Zip Code 61378 — West Brooklyn, IL

ZIP Code 61378 is associated with West Brooklyn, IL, in Lee County. The listed population estimate is 513; estimated density is 3.3 people per square mile. Among records with population estimates, it ranks #10 of 13 in Lee County and #1111 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.726140, -89.158000)

Data MetricLocal Statistic
Postal / Zip Code61378
Primary CityWest Brooklyn
State / ProvinceIL
CountyLee
Total Population513
Population Density3.3 people/sq mi
TimezoneAmerica/Chicago

How 61378 Compares

MetricZIP 61378Lee County recordsIL records
Population estimate51334,166 (sum)12,694,745 (sum)
Population Density3.3 /sq mi----
County population rank#10 of 13----
State population rank#1111 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 61318Compton4.1 mi595
ZIP 61331Lee Center6.3 miN/A
ZIP 61353Paw Paw8.6 mi1,282
ZIP 61367Sublette8.8 mi843
ZIP 60553Steward9.5 mi722

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 →