Home > IL > Boone County > Belvidere > Zip 61008

Zip Code 61008 — Belvidere, IL

ZIP Code 61008 is associated with Belvidere, IL, in Boone County. The listed population estimate is 33,582; estimated density is 153.8 people per square mile. Among records with population estimates, it ranks #1 of 5 in Boone County and #107 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.245790, -88.839490)

Data MetricLocal Statistic
Postal / Zip Code61008
Primary CityBelvidere
State / ProvinceIL
CountyBoone
Total Population33,582
Population Density153.8 people/sq mi
TimezoneAmerica/Chicago

How 61008 Compares

MetricZIP 61008Boone County recordsIL records
Population estimate33,58250,366 (sum)12,694,745 (sum)
Population Density153.8 /sq mi----
County population rank#1 of 5----
State population rank#107 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 61038Garden Prairie5.4 mi1,274
ZIP 61016Cherry Valley6.4 mi5,465
ZIP 61112Rockford6.9 mi152
ZIP 61108Rockford8.4 mi30,355
ZIP 61107Rockford8.8 mi30,765

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 →