Home > IL > Carroll County > Thomson > Zip 61285

Zip Code 61285 — Thomson, IL

ZIP Code 61285 is associated with Thomson, IL, in Carroll County. The listed population estimate is 2,728; estimated density is 23.7 people per square mile. Among records with population estimates, it ranks #3 of 7 in Carroll County and #595 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (41.983070, -90.081100)

Data MetricLocal Statistic
Postal / Zip Code61285
Primary CityThomson
State / ProvinceIL
CountyCarroll
Total Population2,728
Population Density23.7 people/sq mi
TimezoneAmerica/Chicago

How 61285 Compares

MetricZIP 61285Carroll County recordsIL records
Population estimate2,72816,069 (sum)12,694,745 (sum)
Population Density23.7 /sq mi----
County population rank#3 of 7----
State population rank#595 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 61252Fulton9.9 mi5,437
ZIP 61014Chadwick10.0 mi1,067
ZIP 61074Savanna10.2 mi3,962
ZIP 61053Mount Carroll10.4 mi2,590
ZIP 61270Morrison12.1 mi6,912

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 →