Rockford, IL 61103 ZIP Code Profile

Related Place Profiles:
Machesney Park, IL | Rockford, IL

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ZIP Code 61103: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rockford, IL 61103

Acceptable Alternative
Machesney Park, IL 61103
Machesney Pk, IL 61103

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 435
  • Single Family Addresses: 7,960
  • Multi-Family Addresses: 2,273
  • County: Winnebago County
  • Centroid: Latitude 42.299, Longitude -89.103
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

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61103 ZIP Code Map

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Rockford, IL 61103 Data & Demographics (As of July 1, 2017)


Total Population 23,816
Daytime Population: Workers 15,537
Daytime Population: Residents 12,960
Total Daytime Population (TDP) 28,497
Ratio TDP/Total Population1 1.20
Population in Households 22,996
Population in Familes 16,784
Population in Group Qrtrs 820
Population Density2 1,669
Diversity Index3 60


Median Household Income $37,533
Average Household Income $52,166
Per Capita Income $23,107


Total Housing Units 11,277 (100%)
Owner Occupied HU 5,170 (45.8%)
Renter Occupied HU 4,934 (43.8%)
Vacant Housing Units 1,173 (10.4%)
Median Home Value $89,538
Average Home Value $120,102


Total Households 10,104
Average Household Size 2.28
Family Households 5,519
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.18% -0.38%
Households -0.09% -0.33%
Families -0.34% -0.49%
Median Household Income   0.11%
Per Capita Income   2.06%

Rockford, IL 61103 - Peer Comparisons by Rank and Percentile

The table below compares 61103 to the other 1,377 ZIP Codes in Illinois by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 207 85th
Population Density # 266 81st
Diversity Index # 140 90th
Median Household Income # 1293 6th
Per Capita Income # 1125 18th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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