ZIP Code 61065

61065 is one of Illinois's ZIP codes, delivering to addresses in Poplar Grove, Boone County.

City: Poplar Grove
County: Boone County
State: Illinois
Prefix: 610xx

Where this code sits

61065 is part of the 610xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Poplar Grove.

Poplar Grove Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61065 delivers to without sharing its boundary.

ZIP codes nearest 61065

The ZIP codes whose reference points sit closest to 61065.
ZIP code	Distance	Delivers to
ZIP code 61011	4.2 mi	Caledonia, IL
ZIP code 61012	6.0 mi	Capron, IL
ZIP code 61008	6.9 mi	Belvidere, IL
ZIP code 61114	8.4 mi	Rockford, IL
ZIP code 61073	8.8 mi	Roscoe, IL
ZIP code 61038	9.0 mi	Garden Prairie, IL
ZIP code 61111	10 mi	Loves Park, IL
ZIP code 61115	10 mi	Machesney Park, IL

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 61065, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 61065. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.