Zip Code 61065 — Poplar Grove, IL

ZIP Code 61065 is associated with Poplar Grove, IL, in Boone County. The listed population estimate is 10,570; estimated density is 80.1 people per square mile. Among records with population estimates, it ranks #2 of 5 in Boone County and #360 of 1,390 in IL.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.407860, -88.827470)

Data MetricLocal Statistic
Postal / Zip Code61065
Primary CityPoplar Grove
State / ProvinceIL
CountyBoone
Total Population10,570
Population Density80.1 people/sq mi
TimezoneAmerica/Chicago

How 61065 Compares

MetricZIP 61065Boone County recordsIL records
Population estimate10,57050,366 (sum)12,694,745 (sum)
Population Density80.1 /sq mi----
County population rank#2 of 5----
State population rank#360 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 61012Capron3.7 mi2,264
ZIP 61011Caledonia4.5 mi2,676
ZIP 61073Roscoe8.5 mi20,194
ZIP 61080South Beloit9.7 mi10,955
ZIP 61111Loves Park10.3 mi23,286

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 →