Rock Falls, IL 61071 ZIP Code Profile

Related Place Profiles:
Rock Falls, IL | Yeoward Addition, IL

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ZIP Code 61071: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rock Falls, IL 61071

Not Acceptable, USPS
Yeoward Addition, IL 61071
Yeowardville, IL 61071

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 427
  • Single Family Addresses: 5,680
  • Multi-Family Addresses: 347
  • County: Whiteside County
  • Centroid: Latitude 41.758, Longitude -89.691
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 61071 has segments in 2 Counties (Lee, Whiteside).

Neighborhood Data

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61071 ZIP Code Map

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Rock Falls, IL 61071 Data & Demographics (As of July 1, 2017)


Total Population 14,217
Daytime Population: Workers 4,139
Daytime Population: Residents 7,908
Total Daytime Population (TDP) 12,047
Ratio TDP/Total Population1 0.85
Population in Households 14,113
Population in Familes 11,316
Population in Group Qrtrs 104
Population Density2 199
Diversity Index3 35


Median Household Income $41,512
Average Household Income $53,836
Per Capita Income $22,275


Total Housing Units 6,377 (100%)
Owner Occupied HU 4,003 (62.8%)
Renter Occupied HU 1,859 (29.2%)
Vacant Housing Units 515 ( 8.1%)
Median Home Value $92,023
Average Home Value $113,683


Total Households 5,862
Average Household Size 2.41
Family Households 3,859
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 -0.16% -0.29%
Households -0.05% -0.23%
Families -0.22% -0.35%
Median Household Income   0.9%
Per Capita Income   2.3%

Rock Falls, IL 61071 - Peer Comparisons by Rank and Percentile

The table below compares 61071 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 # 303 78th
Population Density # 506 63rd
Diversity Index # 347 75th
Median Household Income # 1191 14th
Per Capita Income # 1181 14th

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

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