US Gazetteer > Illinois Gazetteer > Illinois ZIP Codes > Rockford, IL 61103

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Preferred Name, USPS
Rockford, IL 61103
Acceptable Alternative
Machesney Park, IL 61103
Machesney Pk, IL 61103

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Weather forecast ZIP Code 61103

The 61103 ZIP Code is centered1 in Winnebago County at latitude 42.299 and longitude -89.103 (Panoramio Photos). It is a standard type ZIP Code. Winnebago County is in the Central Time Zone (UTC -6 hours) and observes daylight savings time.

The population in ZIP Code Tabulation Area (ZCTA) 61103 was 24,368 with 10,979 housing units; a land area land area of 16.15 sq. miles; a water area of 0 sq. miles; and a population density of 1,508.42 people per sq. mile for Census 2000. Demographic Profile

Rockford, IL 61103 Map (Marker is ZIP Code Centroid)

Local Search, 61103 ZIP Code| Distance & Driving Directions

Nearby Cities, Towns & Census Designated Places

Rockford, IL (1.9 miles SSE)
Loves Park, IL (2.7 miles ENE)
Westmoreland, IL (3.4 miles WSW)
North Park, IL (4.1 miles NE)
Machesney Park, IL (4.7 miles NE)
Owen Center, IL (4.7 miles N)
Latham Park, IL (5.1 miles NNE)
Harlem, IL (5.1 miles ENE)
Hutchins Park, IL (5.8 miles NNE)
Wempletown, IL (6 miles WNW)

Nearby Neighborhoods, Subdivisions & Other Small Populated Places

Ruby, IL (1.9 miles NE)
Nottingham Manor, IL (1.9 miles NNW)
Colonial Gardens, IL (2.4 miles NNE)
Jonesville, IL (2.4 miles NE)
Genet, IL (3.4 miles NNE)
Samuelson Corners, IL (3.9 miles E)
Sturbridge Village, IL (3.9 miles NNE)
River Forest, IL (4.3 miles S)
Gottfred Subdivision, IL (4.5 miles SSE)
Coreys Bluff, IL (4.5 miles SSW)

ZIP Codes - Key Concepts

  1. ZIP Codes are categories for grouping mailing addresses and are not exact geographic regions.
  2. The centroid of a ZIP Code may be in one County and the associated city/town in another.
  3. In rural areas, a single ZIP Code may be used for cities and towns in several different Counties.
  4. ZIP Code "areas" can overlap, be subsets of each other, or be artificial constructs with no geographic area.
  5. ZIP Codes are only loosely tied to cities.

1 Keeping the above key concepts in mind, what we informally refer to as the "center" of a ZIP Code is most often actually the centroid of a polygon.